The cultivation of high-quality farmers and the protection and utilization of black soil are important starting points for the comprehensive revitalization of rural areas in Northeast China. Based on the "triple helix" theory and an analysis of high-quality farmer cultivation models alongside black soil protection practices, this paper examines the roles, logical relationships, and synergistic mechanisms linking comprehensive rural revitalization, farmer training, and soil conservation in Northeast China. Through typical case studies, it further elucidates the coordination mechanisms and sustainable pathways for integrating these elements within the rural revitalization process, proposing systematic strategies for promoting holistic rural development. The research reveals that comprehensive rural revitalization, high-quality farmer cultivation, and black soil protection form an integrated "field-subject-resource" governance model. In this model, rural revitalization serves as the foundational support, farmer cultivation provides the talent input, and black soil utilization acts as the resource base. The synergy of these elements translates their respective advantages into effective governance outcomes. The cultivation of high-quality farmers and protection and utilization of black soil are gradually adapting and positively influencing each other in the fields of rural industrial development, ecological protection, talent cultivation, organization construction and culture shaping. Building on the established synergy mechanism, further progress can be achieved through rural industrial innovation, coordinated ecological governance, optimized talent cultivation, organizational restructuring, and cultural preservation. Policy design and implementation should also be adapted according to the stage of rural revitalization to enhance synergistic efficiency.

Socio-spatial differentiation refers to the spatial distribution disparities among social groups with different attributes. Current research mainly focuses on intra-urban residential differentiation and rarely studies the social space at the regional scale, especially in integrated areas. Taking the Yangtze River Delta (YRD) integrated region as the study area and utilizing multi-dimensional, high-precision population attribute data from the Baidu Huiyan big data platform, this study analyzes the structure, characteristics, and mechanisms of socio-spatial differentiation within the region. The findings reveal that: (1) Based on key indicators such as spatial location, resident age, education level, income, and consumption capacity, the YRD can be divided into five distinct social areas. (2) These different social areas form a multi-nested "core-periphery" structure within the YRD, with significant socio-spatial differentiation observed across regions, between provinces, among cities, between urban and rural areas, and within cities. (3) The integration process has failed to promote a balanced distribution of social groups within the region; the socio-spatial differentiation in the YRD is the result of the combined effects of policy orientation, market mechanisms, and social forces. (4) Under the combined effects of endogenous factors, such as disparities in regional economic development levels, and exogenous factors, such as the migration of populations with different skill sets to different types of areas, there is a potential for intensified group differentiation and spatial disparities within the integrated YRD. To promote the balanced development of regional population and resources, it is necessary to explore some measures to achieve cross-regional resource integration and fair allocation, promote the equalization of high-quality public services and residents' living standards, and ultimately reach the goal of high-quality development of social space integration in the YRD.

Realizing the value of grassland resource assets is a critical initiative to harmonize ecological conservation with economic development, fostering sustainable coexistence between humans and grasslands. As an advanced productive force aligned with the future-oriented protection and utilization of grassland resources, new quality productive forces provide essential theoretical and practical foundations for this process. This study employs literature analysis, inductive reasoning, and case study methodologies to systematically elucidate the fundamental logic, operational mechanisms, and key pathways through which new quality productive forces empower the value realization of grassland resource assets. The findings demonstrate that: (1) The three core components of new quality productive forces—new technologies, new factors, and new industries—deliver scientific impetus, diversified strategies, and sustainable safeguards for value realization. (2) Practical challenges in this process are characterized by a tripartite dilemma: low technological conversion rates and gaps in cutting-edge technologies, insufficient participation of new-type factors and barriers to factor integration, and outdated industrial structures with low production efficiency. (3) Critical implementation pathways include: building specialized research teams, addressing technological deficiencies, and establishing industry-academia collaboration platforms; integrating production factors and developing multi-dimensional value systems; modernizing industrial structures, transforming production modes, and optimizing organizational management. This research provides both theoretical guidance and practical frameworks for the scientific management and value realization of grassland resource assets, contributing to the synergistic advancement of ecological civilization construction and socio-economic prosperity in pastoral regions.

Assessing the effectiveness of subsidies, supervision, and their combined instrument is critical for optimizing grassland eco-compensation policies. However, existing studies face methodological constraints in disentangling these three instruments due to contextual limitations. Leveraging the unique identity of grassland transfer-in herders, this study constructs a quasi-natural experiment using field survey data from 885 herders in Inner Mongolia Autonomous Region. We employ Propensity Score Matching (PSM) to isolate the independent and synergistic effects of subsidies and supervision on grassland use pressure. Attempts are made to rigorously disentangle causal relationships of policy effects within complex social-ecological systems. Key findings reveal that: Firstly, subsidy instrument reduces grassland use pressure by 2.5299 sheep units per hm², equivalent to a 77.13% decrease in overgrazing severity. Secondly, supervision instrument decreases grassland use pressure by 1.8866 sheep units per hm², reducing overgrazing degree by 60.28%. Thirdly, synergistic effects lower grassland use pressure by 2.1791 sheep units per hm², diminishing overgrazing degree by 66.44%. These results demonstrate that economic incentives outperform supervision constraints, while synergistic effects exceed supervision instrument but remain weaker than subsidy instrument. Finally, the effects of subsidies, supervision and synergy on grassland use pressure reduction are more significant in small grassland scale herders, and the effect decreases in the order of synergy, subsidies and supervision. With different livelihood strategies, subsidies, supervision and synergy are all conducive to grassland use pressure, but synergy and supervision are more effective in non-grazing employment herders, while subsidies have little difference in grassland use pressure between the two groups. Future efforts should respect the phased law of policy implementation, enhance subsidy precision, improve supervision mechanisms and tools, and foster synergistic linkage between subsidies and supervision to achieve policy synergy.

The United Nations Sustainable Development Goals for 2030 emphasize the win-win of enhancing agricultural output and promoting the sustainable development of grasslands, propelling research on the impact of agricultural land expansion on grassland systems into a new phase. This article reviews the relevant research trajectory and constructs a conceptual framework for the displacement processes and effects of agricultural and grassland systems within a region. On this basis, it organizes the displacement relationships between agricultural land and grassland systems under different scenarios, analyzes the displacement pathways that achieve a win-win situation for both production and ecology, and summarizes existing win-win models. It also explores the challenges and pathways for future model upgrades. The study finds that, from the perspective of the impact of agricultural land expansion on grassland systems, the entire agricultural system structure includes three subsystems—terrain, plants, and animals—and two fundamental interfaces connecting these subsystems. When the free potential energy of the agricultural land system accumulates to a certain extent, expansion behavior occurs. This leads to geographical spatial displacement with the grassland system and generates a series of impact effects on each subsystem and connecting interface: (1) When agricultural land undergoes inappropriate expansion, its systemic relationship with grassland becomes destructive, characterized by competition and annexation. This is primarily manifested as ecological niche deviation and over-expansion, leading to significant negative impacts. (2) When the expansion parameter of agricultural land is appropriately set, a relationship characterized by differentiation, catalysis, and multi-stability emerges between the agricultural and grassland systems. This leads to complementary spatial functions and matched potential energy, which drives displacement coupling and ultimately achieves a win-win outcome. Since the beginning of the 21st century, the global expansion of agricultural land has been continuing. Most countries have recognized the effects of system displacement and have successively introduced policies and legislation to achieve positive effects and avoid or reverse negative effects. At this stage, some countries have developed coupled win-win models, including mixed cropping, integrated crop and livestock systems, but these models face issues such as small scale, few participants, and limited content, remaining in the early stages of development. Reaching a mature stage still presents practical challenges in policy and management, technology and application, resources and security, and coupling and practice. The future goal is to construct a multi-dimensional, multi-scale, multi-model, and multi-agent coupled grassland-agricultural land displacement system, achieving a global win-win scenario. This can be realized through breakthroughs in policy control, spatial collaboration, technology upgrade/sharing, and multi-stakeholder cooperation, all guided by system coupling theory.

In arid and semi-arid pastoral areas, pastoralism is the most sustainable agro-food system. However, the current grassland degradation caused by overgrazing and climate change has threatened livestock production and herders' livelihood. Exploring the impact and mechanism of land titling on the technical efficiency (TE) of herders can help curb grassland degradation and improve herder livelihoods with institutional arrangements. Based on three periods of panel data of 2014, 2017 and 2020 from field interviews with 299 herder households collected in five sumus and towns in Urad Middle Banner, Inner Mongolia, this study used Stochastic Frontier Analysis to examine the impact of the new round of grassland titling on TE, and explored the impact mechanism using Binary Choice Model and Two-way Fixed Effects Model. The TE analysis showed that titling was associated with higher technical efficiency, as shown by a 0.367 higher mean TE value for confirmed herders compared to unconfirmed ones. The influencing mechanism mainly manifested as direct incentive effect and grassland transfer effect, while the labor migration effect was not significant, i.e., grassland titling could improve TE by motivating herders to adopt more proactive attitudes towards utilizing and transferring grasslands rather than by promoting them to work outside. The study was expected to extend the application of land property rights theory to grassland resource management, thereby providing a theoretical basis for promoting grassland titling in other pastoral areas and a practical reference for enhancing herder efficiency and conserving natural capital through improved institutional arrangements.

Located in inland Northwest China, the Hexi region has a typical arid and semi-arid climate and serves as a vital node in the Belt and Road Initiative. In recent years, global changes and human activities had impacted the sustainable development of both the regional ecosystem and the socio-economy. Grasslands play an important role in sustaining socio-economic development and ecological balance in arid and semi-arid zones, which are essential for providing critical ecosystem services such as water and soil conservation, windbreak and sand fixation, and biodiversity conservation. Grassland coverage serves as a key indicator of regional ecological health. Investigating the spatiotemporal patterns and response mechanisms of grassland coverage in the Hexi region holds significant importance for maintaining ecological balance and regulating regional climate. This study utilized MODIS NDVI time-series data and meteorological records from 2001 to 2022 to conduct multi-scale spatiotemporal analyses of grassland coverage dynamics and their climatic responses. An XGBoost model integrated with CMIP6 dataset was further employed to simulate grassland coverage trends from 2023 to 2050 under different scenarios in the Hexi region. The results showed that: (1) Grassland coverage in the study area showed an overall increasing trend with stable fluctuations. The spatial distribution of grassland coverage exhibited distinct spatial heterogeneity, presenting a pattern of "higher in the southeast and lower in the northwest". Approximately 57.22% of grasslands demonstrated significant improvement, though the sustainability of this trend remains uncertain. (2) Grassland coverage responded differentially to climatic factors, with precipitation showing the highest correlation coefficient. Grasslands in the northwest part of the region were notably influenced by soil moisture. Climate change (CC) and human activities (HA) contributed 27.88% and 72.12% to coverage changes, respectively, indicating HA as the dominant driver. (3) By 2050, annual average grassland coverage is projected to increase under SSP2-4.5 and SSP5-8.5 scenarios but decrease under SSP1-1.9. The SSP2-4.5 scenario is deemed more conducive to grassland development in the Hexi region. These findings provide a scientific basis for ecological restoration and sustainable development in this region. Future research should integrate high-resolution land use data with long-term ecological monitoring to explore the complex response of grassland ecosystems to climate change and human activities. Furthermore, comprehensive assessments of grassland ecosystem services and values should be strengthened. Coupled with long-term field surveys and monitoring in vegetation-sparse and degraded areas, this work will provide critical decision-making support for ecological management and the sustainable use of resources in the Hexi region. The results also help us to scientifically understand the response and feedback between vegetation changes and global change in various natural and human environments.

China's Digital Village Strategy is entering a new phase of comprehensive acceleration. Digital technologies are now deeply integrated into all facets of pastoral systems, from livestock development and herdsmen production to livelihoods and the overall transformation of pastoral areas. Against the macro-backdrop of grassland livestock reduction policies, this paper develops a game payoff matrix from the dual-game perspective of government-herdsmen interactions. This approach facilitates a mathematical analysis of the mechanisms through which digital technology enhances the quality of herd reduction practices. Simultaneously, OLS regression combined with Generalized Propensity Score Matching (GPSM) is applied to survey data from herders in the Ili region of Xinjiang. These methods empirically examine the mechanisms through which digital technology affects livestock reduction quality. The baseline regression results indicate that digital technologies significantly improve the quality of livestock reduction. This improvement is manifested in high efficiency, environmental friendliness, rational regulation, and effective supervision. The GPSM estimation results demonstrate a significant positive effect of digital technology usage intensity on livestock reduction quality, revealing an increasing marginal benefit trend. Mechanism analysis reveals that emotional social networks play a mediating role in the pathway through which digital technologies affect the quality of livestock reduction, while functional social networks do not exhibit a significant influence. Local governments should strengthen cooperative and mutually beneficial relations with herdsmen, thereby promoting the deeper integration and sustainable development of digital technologies in the livestock sector.

Spatial justice refers to social equity in the production of space and the allocation of spatial resources, emphasizing the fairness in the distribution and utilization of spatial resources. In market-based historical and cultural districts, conflicts over the use of space arise among various stakeholders including businesses, residents, and cultural preservationists due to their competing needs and interests. These conflicts often create tensions between development, preservation, and everyday life. This study develops an analytical framework based on spatial production theory to examine the relationships between stakeholders in urban renewal, with a focus on achieving the goal of spatial justice in urban renewal. Using the Thirteen Hongs Historic Block in Guangzhou as a case study, the research draws on historical records, in-depth interviews, and survey data to uncover the root causes of spatial conflicts and the underlying factors and consequences of spatial injustice in market-based historic block. The findings reveal that spatial practices in the Thirteen Hongs Historic Block are shaped by the competing interests of government, market actors, and civil society. The unequal distribution of spatial rights has led to fragmented use of space, resulting in contradictions that hinder the realization of historical, economic, and social values. This spatial injustice stems from an imbalance of power, ineffective rule restructuring, and unequal access to resources. To address these issues, the study proposes a spatial justice-oriented approach to urban renewal. This approach includes three related strategies: a shared governance strategy to rebalance power relationships and achieve social equity, a collaborative governance strategy to ensure procedural fairness and institutional justice, a co-creation strategy to establish resource compensation mechanisms and achieve distributive justice. By integrating these strategies, the study aims to achieve a three-dimensional synergy of "value-procedure-outcome" spatial justice, fostering a more equitable and sustainable urban renewal mode.

National parks, as pivotal platforms for safeguarding biodiversity, sustaining ecosystem services, and propelling sustainable development, are progressively evolving into comprehensive platforms that integrate ecological conservation, recreation, education, and science research. Nature study travel, a novel form of activity that integrates nature education with study travel, aims to guide visitors in observing, learning, and experiencing natural ecosystems to enhance their environmental awareness and ecological literacy. The functional positioning of national parks is congruent with the objectives of nature study travel, thereby enabling national parks to provide ample natural resources as a foundation for such activities while concurrently offering suitable spatial and facility support for their implementation. A systematic review of domestic and international theories and research progress on the educational utilization, recreational utilization of national parks, and study travel was conducted to inform the development of a national park nature study travel system framework. This framework comprises four major components: resources and products, operations and management, stakeholders, and support and safeguards. The text subsequently provides a synopsis of the salient research issues, including resource survey and assessment, product design, activity processes and educational effects, multi-party collaboration and community integration, institutional systems and operational performance. Finally, it proposes practical pathways for nature study travel in national parks, tailoring these pathways to China's national conditions. The objective of this study is twofold: first, to furnish the academic community with insights and inspiration; and second, to offer a scientific basis and decision-making support for the optimization of multiple functions and the institutional development of China's national parks.

Against the backdrop of digital-driven industrial ecosystem reconstruction, this study explores how collaborative agglomeration of digital and tourism industries impacts cultural-tourism (CT) integration, with the aim of identifying pathways that transcend traditional development models and foster new poles of high-quality growth. This study employs China's provincial panel data (2012-2022), applying methods such as the coupling coordination degree model, spatial econometric model, and Geographically and Temporally Weighted Regression (GTWR). Key findings are: (1) The collaborative agglomeration shows an imbalanced pattern characterized by an initial "high in the east, low in the west" distribution, which later evolved into an intensified core-periphery structure. Early advantages in eastern coastal areas, driven by technology and policy, were subsequently moderated by technology diffusion, reducing inter-regional disparities. (2) This agglomeration promotes CT integration through a "local reinforcement and neighboring spillover" effect, with the strongest impacts in the eastern region and southeast of the Hu Huanyong Line. GTWR results further reveal that the western region, leveraging its resource endowment and the "East Data, West Computing" project, experiences a growing promotional effect. Conversely, the eastern region's advantage is reinforced through advanced digital applications in the later stage. (3) Threshold effects show no significant nonlinearity, with stable growth. Spatially, areas of Southeast Hu Huanyong Line have obvious synergy (backed by industrial foundations and policies), while central and western regions are hindered by weak technology and infrastructure. Notably, the west has a stronger spatial spillover effect, benefiting from "East Data, West Computing" cost advantages and rich cultural-ecological resources. This study enriches the CT integration theoretical framework and supports regional coordinated development policies. Therefore, it is vital to strengthen inter-regional technological cooperation, optimize the layout of digital infrastructure, and promote a two-way flow of "data-culture" elements to enhance national cultural-tourism integration.

With the advancement of the natural resource asset property rights system reform, the realization of the value of natural resource assets has gradually become a focal point of social attention. Based on the perspective of "asset-capital-funds" transformation, this paper constructs a theoretical framework for the assessment, price formation, and value realization of natural resource assets. It divides asset value into direct and indirect use values and combines asset value assessment with capital accounting methods to empirically analyze the degree of value realization of natural resource assets in Ankang city. The study finds that: (1) The value of natural resource assets in Ankang city is 4.768 trillion yuan, with direct use value amounting for 636.81 billion yuan, primarily from land resources (54.04%) and forest resources (35.51%); the indirect use value is 206.57 billion yuan, discounted to 4.131 trillion yuan, mainly from climate regulation (40.70%), water conservation (35.12%), and cultural services (12.14%). (2) Through market transactions, ecological compensation, and concession transactions, the capital of Ankang's natural resource assets is calculated to be 1.457 trillion yuan. (3) The annual cash realization of Ankang city's natural resource asset value is 62.26 billion yuan, discounted to 1.187 trillion yuan, with the realization shares through market transactions, concessions, and ecological compensation accounting for 53.68%, 42.17%, and 4.16%, respectively. (4) There is still room for improvement in the realization of the value of natural resource assets in Ankang, with the broad (capitalized) realization degree at 30.56% and the narrow (funded) realization degree at 24.94%. This study provides a theoretical basis and practical reference for promoting the realization of natural resource asset value.

Against the backdrop of global environmental changes and the ongoing advancement of China's ecological civilization, the natural resources science must deepen its theoretical foundations and refine its academic system to address pressing challenges such as population-resource conflicts. Based on a review of the development trajectory of natural resource science, this paper focuses on the interaction and coordination between "space" and "elements" and proposes a disciplinary framework for natural resource planning centered on the "space-element-planning" triad. The proposed framework takes "spatial positioning-element allocation-planning coordination" as its logical starting point and builds the disciplinary content system around three key dimensions: revealing spatial patterns, optimizing element configurations, and constructing spatial support. Looking ahead, the development of natural resource planning should be guided by indigenous knowledge innovation, supported by interdisciplinary curricula, and driven by major scientific and technological missions. This will promote the establishment of a robust discipline of natural resource planning that supports the unified management of natural resources and territorial spatial governance, contributing to the realization of Chinese-style modernization characterized by harmony between humanity and nature.

Based on the theory of cultural ecosystem services (CESs) and the simultaneous development of five educations, this study constructs a comprehensive framework to elucidate the mechanisms among landscape education, CESs values, and natural resources teaching. It compiles expert evaluations of illustrations from middle school geography textbooks and a collection of study-tour itineraries for Gansu province. Using methods including categorical statistics, kernel density estimation, and MaxEnt model prediction, the study assesses the CESs values of natural resources featured in middle school geography curricula and Gansu study sites, and explores pathways through which value evaluation can advance natural resources teaching. Findings indicate: (1) Digital landscapes convey the digital CESs values in theoretical teaching through multimedia courseware, textbook illustrations, and other forms. Students perceive the physical CESs values via observation, experience and research. The values of CESs provide a pivotal basis for selecting teaching materials and field sites. (2) The illustrations in chapters such as "Resources Security and National Security" carry high value. Mixed multiple illustrations layouts better express educational and spiritual values. Chapter cover illustrations convey aesthetic values, and educational and spiritual are strongly linked. Values evaluation informs textbook revision through the selection of graphic and textual cases, innovative arrangement methods, optimized visual effects, and exploration of ideological and political elements. (3) Study-tour courses in Gansu show overall agglomerative spatial distribution. Lanzhou city and surrounding counties are the main high-value areas for five types of CESs. The high-value areas in the Hexi Corridor are concentrated in oases and cities. Value distribution is highly correlated with the density of primary and secondary schools in the region. Values assessment guides study-tour product development and practical education-based construction. The research has practical significance in refining teaching strategies and objectives across educational levels, optimizing teaching resources, and linking of theory with practice in teaching.

Land-sea integration is the core value orientation for the synergistic utilization of terrestrial and marine space and resources in China. To construct a coastal human settlement environment system featuring human-land (sea) interaction under the multidimensional goals of land-sea integration, this paper proposes the concept of the "Key Zone of Land-Sea Integration" and its spatial structure of "supporting zone-core zone-associated zone-hinterland zone". The Key Zone of Land-Sea Integration implements the research perspective of the coastal human settlement environment system in terms of scope definition, hierarchical structure, research priorities, and development dimensions. It follows the research approach of "spatial structure-geomorphic pattern-ecological network-human settlement order", couples the multidimensional values of "ecology-economy-space-culture-society", and puts forward key research issues. Specifically, in scope definition, it clarifies the spatial scope integrating land and sea, covering both coastal areas and their adjacent terrestrial and marine extensions. In hierarchical structure, it establishes a multi-level system to adapt to analyses and management at different scales. In research priorities, it focuses on the dynamic interactions between human activities and the natural environment within the zone. In development dimensions, it emphasizes the balance among economic growth, social progress, and ecological protection. Focusing on the integration of human-land (sea) interaction and the integration of land-sea multidimensional values at the urban scale from the perspective of the coastal human settlement system environment, the Key Zone of Land-Sea Coordination proposes clear spatial objects and carriers. It will further promote the integration of land-sea coordinated territorial spatial planning and governance, break down traditional barriers between land and sea management, and facilitate high-quality development of coastal human settlement by guiding rational spatial layout, efficient resource utilization, and harmonious coexistence between human and nature. Thus, it provides theoretical support and practical guidance for advancing systematic management of coastal areas and optimizing the sustainable development pattern of coastal human settlement.

International digital infrastructure represented by submarine cables has important strategic value in information transmission, economic and trade stability, and military security, and can provide solid support for the spatial selection of China's overseas strategic pivots (COSPs). Based on the theoretical framework of spatial selection of COSPs and the distribution pattern of global submarine cable network, we identified global Internet gateways and then screened COSPs at the regional, national and teleport scales. The results show that: (1) Overseas strategic pivot is further extension of Internet gateway, which endows the latter with a pivot attribute and strategic meaning on the basis of its connotation. The identification logic of COSPs based on submarine cable network follows the three-level spatial scale of ''region-country-teleport'', and geopolitical theory, new state space theory and location theory respectively dominate the spatial selection of COSPs at higher scale, mesoscale and lower scale. They each have their own focus and are nested with each other, forming a logical framework of the spatial selection of COSPs based on submarine cable network. (2) The global submarine cable network exhibits a distinct spatial imbalance, a pattern further diversified by the cumulative effects of scale on node distribution. However, regardless of the scale, the global submarine cable network has formed a ''one heart, three poles, three corridors'' pattern with the rimland of the Eurasian continent as the heart, the United States, the United Kingdom and Singapore as the three poles, and the three main corridors spanning the North Atlantic, the southeastern and the southwestern sea area of the Eurasian continent. (3) The spatial selection results of COSPs have geographical proximity and similarity, mainly distributed in six strategic zones, namely East Asia-Southeast Asia strategic zone, Persian Gulf-Red Sea strategic zone, Mediterranean-Europe West Coast strategic zone, Africa West Coast strategic zone, Caribbean strategic zone, and Eastern North Pacific strategic zone, presenting a ''core-expansion-periphery'' distribution pattern. The results can enrich the research framework of submarine cable and strategic pivot, providing theoretical reference and policy inspiration for expanding China's overseas interests.

The realization of Chinese path to modernization depends on the construction of a high-quality territorial space system. The essence of territorial space lies in the orderly support of human activities, with the goal of realizing the value of territorial space, and the bottom line is to ensure the security of territorial space. The territorial space system constitutes an organic whole centered on the human-nature system, formed through the interaction of various systems within a defined spatial range according to specific ordering principles. It comprises a static system grounded in natural resources and a dynamic system driven by human activities. Connectivity within the territorial space system arises from the circulation and energy flows of human and natural materials, manifesting as interlinkages among food, water, energy and ecology. This system exhibits spatiotemporal continuity, nesting between different levels and scales, and demonstrates the transience and mobility inherent to resulting flow spaces. The development and evolution of the territorial space system require support and guidance from the territorial spatial planning system, ultimately achieving enduring sustainability within the territorial space governance system. This progression facilitates the realization of harmonious coexistence between humans and nature.

Rural hollowing reflects spatial-functional misalignment among population, land, and industry during rural restructuring. Understanding its morphology and dynamics is essential for formulating precise, geography-informed rural revitalization strategies. This study explores the Zhuhai-Bayannur transect encompassing 224 counties, with a particular emphasis on the spatial heterogeneity of rural hollowing shaped by variations in physical geography and socio-economic development. The research constructs a multidimensional assessment framework that examines rural hollowing through the lenses of population dynamics, land utilization, and industrial structure. It further delivers a systematic interpretation of the spatial differentiation and temporal progression of rural hollowing, while elucidating the principal driving mechanisms behind its formation. The research findings are as follows: (1) From 2000 to 2020, rural hollowing in the sample belt progressively intensified. Spatially, it demonstrates zonal differentiation, tiered advancement, and spatial agglomeration. (2) Rural hollowing exhibits significant gradient characteristics. The eastern region remains relatively stable, the central region has undergone rapid development, while the western region has remained persistently high. The severity of hollowing increases with elevation. Municipal districts, which began experiencing hollowing earlier, exhibit the slowest growth rate, while county-level regions, which lagged behind, show the fastest acceleration. (3) Geographically weighted regression analysis reveals that seven factors consistently and significantly influence rural hollowing, with marked spatial heterogeneity. The ratio of agricultural population to the total population and per capita net income of rural residents act as constraints on rural hollowing, while per-unit fiscal revenue exerts a predominantly positive influence. The growth in urbanization rate does not exert a sustained impact on rural hollowing. (4) Utilizing self-organizing map clustering and zonal methodologies, the sample belt is classified into seven typological regions of hollowing. Each zone displays distinct characteristics driven by disparities in natural endowments and economic development. Drawing on the findings, this paper proposes tailored governance strategies for region-specific subsystems to mitigate rural decline and underpin sustainable development and revitalization efforts.

At the end of 2020, the tough battle against poverty achieved a comprehensive victory, but the problem of poverty has not been completely resolved. The manifestation and governance situation of poverty have undergone new changes, and preventing large-scale poverty relapse has become a fundamental project for promoting modernization of agriculture, rural areas, and state governance. Based on a comprehensive review of the theoretical connotations of poverty reversion across multiple disciplines, this study employs bibliometric analysis method to investigate the research trajectory and key issues surrounding the study of poverty reversion, while also offering insights into potential avenues for future research expansion. The results show that: (1) Academic research on poverty reversion has evolved through three distinct phases: theoretical introduction and causal analysis, thematic expansion and methodological innovation, and academic deepening with an application-oriented focus. (2) Research on poverty reversion spans the entire process of "forward-looking prevention-procedural diagnosis-systematic governance". It has accumulated extensive research achievements and practical experiences, focusing on core topics such as the measurement and early-warning of poverty reversion risks, the inducing factors and processes of poverty reversion, and regional models and pathways for preventing the poverty reversion. (3) From the perspective of research outlook, future studies on poverty reversion should engage in more extensive and in-depth discussions focusing on theoretical localization, governance digitization, thematic deepening, and global perspectives, in order to better serve poverty governance practices, rural revitalization, and rural modernization strategies.

Ecosystem assets, as an important part of the natural resource assets to support human socio-economic development, are the basis for the provision of ecosystem products and services to humans, and consequently for the generation of ecological benefits and gross ecosystem product, including natural ecosystems such as forests and grasslands, artificial ecosystems based on natural ecological processes such as farmland and urban green space, as well as wildlife resources. Ecosystem asset quality is the synthesis of structural and functional characteristics of ecosystems, reflecting the capacity to provide ecosystem services sustainably. Assessing the ecosystem asset quality is one of the most complex parts in ecosystem asset accounting. As a new perspective of ecosystem accounting, ecosystem asset quality emphasizes both natural and socio-economic attributes of ecosystems, which is highly significant in promoting ecosystem valorization, ecosystem asset management and the realization of the value of ecosystem products. In this review, we systematically summarize the concepts, assessment methods and indicators of ecosystem asset quality, and also provide an overview of global relevant cases. Issues, such as the improvement of the indicator system and the comprehensive assessment, and suggestions for the assessment of ecosystem asset quality are proposed to establish a framework for future research, and to promote global ecosystem assessment and accounting with its application in ecological and environmental protection policymaking.

Land system science is dedicated to addressing complex socio-economic and ecological challenges and developing sustainable land use solutions. Food inherently serves as a critical link between human societal systems and natural systems. Ensuring food security is not only a key component of the United Nations Sustainable Development Goals but also a crucial task for China's agricultural production transformation and people's livelihoods improvement. This study systematically analyzes the research topics and key advancements in land system science related to food security goals. The findings reveal that, due to the land's position at the intersection of multiple interests associated with sustainable social development, the non-linear transformations and complex feedback mechanisms within land systems endow land system science with four prominent characteristics: interdisciplinarity, systematicity, sustainability, and complexity. In the realm of food security, land system science has achieved notable successes, encompassing five core research areas: land use strategies, land use transitions, land use telecoupling mechanisms, land use demand modelling, and the optimization of land management systems. These studies present the transformative trend towards emphasizing the significance of cross-spatiotemporal spillover effects, adopting systematic and holistic perspectives, and underscoring the sustainable development goals. Future research should be grounded in the logical foundation of food "flow spaces" and the food value chain, employing systems thinking to develop sustainable land use solutions and strengthen land system science in the areas of integrated research on multi-element coupling and interdisciplinary theoretical innovations, so as to contribute to the realization of food security goals.

The energy conservation and emission reduction fiscal policy is a major institutional innovation in China's green finance sector and is crucial for achieving the "dual carbon" goals. This paper takes the pilot comprehensive demonstration cities for this policy as the exogenous policy impact, and analyzes its effects on energy and industrial structure transformation using a difference-in-differences model and a dual machine learning model. The results indicate that establishing comprehensive demonstration cities significantly enhances the optimization of energy structure and the upgrading of industrial structure in the region. These conclusions remain robust after a series of tests, including parallel trend and heterogeneous treatment effects. Mechanism analysis shows that the policy pilot can improve energy and industrial structures by promoting energy- and environment-oriented technologies and capacity utilization. Heterogeneity analysis reveals that the implementation effect of the pilot policy is more prominent in core large cities, non-industrial base cities, highly market-oriented cities, and cities with low financial pressure. Further research demonstrates that constructing demonstration cities offers obvious advantages in promoting the realization of six tasks initially set by the policy, including industrial decarbonization, clean transportation, green building, service intensification, reduction of major pollutants, and large-scale utilization of renewable energy. The findings of the study provide valuable insights for designing and implementing more comprehensive green fiscal policies in China in the future.

As urbanization dynamics transform and dominant social challenges change, population migration in China has exhibited distinct new trends. Understanding the regional opportunity factors that shape migration is crucial for uncovering the driving forces behind these changes. This study builds on the theoretical framework of regional opportunity structures, developing an evaluation system that uses the entropy weight method, the Decision-Making Trial and Evaluation Laboratory method, and self-organizing map neural network techniques to assess and categorize the regional opportunity levels of China's prefecture-level cities. Using data from CMDS 2017, the research explores how regional opportunity levels affect both the mobility-stickiness of population migration. The main findings are as follows: (1) By introducing the geographical concept of "regional opportunities" into population migration research, this study creates a "mobility-stickiness" analytical framework. This framework investigates how spatial differences in regional opportunities shape migration behavior, focusing on four key dimensions: economic development opportunities, life service opportunities, institutional and cultural opportunities, and natural environment opportunities. (2) The overall regional opportunity levels in China are generally aligned with the levels of regional economic development and can be categorized into seven distinct clusters. (3) Major urban agglomerations and provincial capital cities are the primary destinations for population migration. Economic opportunities remain a key driver of migration from a mobility perspective, while differences in migration destinations and motivations shape the diverse impacts of various opportunity dimensions from a retention perspective. Individual characteristics also play a significant role in moderating how regional opportunities impact migration decisions. (4) Based on the influence of the dominant and limiting factors of regional opportunities on population migration, the study identifies four types of regional opportunity models: hard-factor dominant zones, hard-factor constrained zones, soft-factor dominant zones, and soft-factor constrained zones. Targeted strategies are suggested to address the unique challenges and strengths of each type. The framework for analyzing regional opportunities proposed in this study offers broad applicability beyond China, providing valuable insights for designing population management and regional development policies in other contexts.

Neo-endogenous development is an important way to realise the modernization of agriculture and rural areas, and the reform of the land property rights system plays an important role in activating the internal and external development momentum of agriculture and rural areas. Based on the multi-period double-difference method, the study analyses and examines the impact of "Three Rights Separation" of agricultural land on the neo-endogenous development of agriculture and rural areas and its mechanism of action using balanced panel data of 206 prefecture-level cities in China from 2008 to 2022. The study finds that: (1) "Three Rights Separation" of agricultural land significantly improves the level of neo-endogenous development in agriculture and rural areas. (2) Promoting land scale and attracting capital investment are two important channels through which we can exert the policy effect of "Three Rights Separation" of agricultural land. (3) "Three Rights Separation" of agricultural land has significantly raised the level of neo-endogenous development in agriculture and rural areas. (4) "Three Rights Separation" of agricultural land will enhance the level of neo-endogenous development of agriculture and rural areas to a greater extent in areas with a lower degree of deepening of agricultural capital and better scientific and educational environments, and the policy effect will not be significantly different due to the loss of rural labour and the differences in natural resource endowment. This paper provides more theoretical support and empirical evidence for the use of land property rights reform to accelerate agricultural and rural development and thus achieve agricultural and rural modernization.

The 2018 restructuring of China's Ministry of Natural Resources initiated a New Era for natural resource discipline. Systematically advancing its positioning and knowledge framework has become imperative, integrating science, technology, and engineering to enhance conservation, green resource utilization, and sustainability. This study employs bibliometric analysis and literature review to systematically delineate the developmental trajectory, disciplinary positioning, knowledge system, and implementation pathways of natural resource studies. The findings reveal that natural resource discipline in China has advanced from its initial stage through systematic disciplinary development, evolving from multidisciplinary and interdisciplinary approaches into a transdisciplinary field. It has now established a natural resource-centered knowledge system, underpinned by theoretical foundations in formation mechanisms, sustainability, efficiency, and property rights. The discipline integrates survey and monitoring, evaluation, simulation modeling, and policy analysis to address applications spanning territorial spatial planning, resource asset management, protected area systems, and engineering project development. The establishment of the Ministry of Natural Resources and clarification of its "Two Unifications" responsibilities, alongside reforms of natural resource asset property rights systems and unified territorial spatial planning policies, have invigorated the discipline. The field will now integrate practical needs to enhance disciplinary development, talent cultivation, and career pathways. As the knowledge system continues to be refined, the knowledge system of natural resource discipline in China will provide a robust theoretical foundation for the construction of a beautiful China and global sustainable development. Moreover, this discipline will continue to address societal demands for the utilization, protection, development, and management of natural resources by cultivating high-quality talent. In the future, professionals in natural resource discipline will integrate science, technology and engineering through transdisciplinary approaches to address national priorities directly. Leveraging artificial intelligence, big data, and blockchain technologies, they will advance Beautiful China initiatives and contribute to global sustainable development goals while tackling emerging resource challenges.

With the in-depth development of resource science research and interdisciplinary integration, improving the teaching ability of natural resources has become an important issue that higher education needs to solve urgently. Based on the concept of "Mutual Promotion of Teaching and Competition", this paper analyzes the discipline characteristics, teaching requirements and teaching mode of resource science, and probes into the role of "Mutual Promotion of Teaching and Competition" mode, which combines teaching research and discipline competition, in promoting the teaching ability of natural resources. Through the analysis of the National College Students Natural Resources Science and Technology Works Competition, the positive effect of this model on improving teachers' teaching ability and students' learning ability is verified. By participating in the discipline competition, teachers can update the teaching ideas and methods in time, integrate the frontier knowledge into the classroom, and improve the teaching quality. By combining theory with practice through competition, students can develop enhanced practical problem-solving awareness and cultivate innovation capabilities. The advantages of "Mutual Promotion of Teaching and Competition" mode in improving teaching quality and stimulating innovation ability can provide reference for resource science teaching reform.

As an important component of the world's cultural heritage, agricultural heritage carries the essence of China's thousands of years of farming culture. With the rapid changes of modern society, agricultural heritage is facing unprecedented challenges, such as changes in population structure and the weakening of cultural identity. This paper takes the theory of social-ecological systems as the perspective, and adopts the method of exploratory case study. Through field research, in-depth interviews and literature analysis in Wangjinzhuang, Handan city, Hebei province, it constructs the evolution process model of the resilience of agricultural heritage, and tries to explore the evolution process and value reconceptualization of agricultural heritage, and unify the three strategic goals of ecological value, social function and cultural significance of agricultural heritage protection: (1) The evolution process of the resilience of agricultural heritage is a complex and dynamic process, covering many closely connected stages from the original stage to the regeneration stage, showing its dynamic changes and adaptive characteristics at different time scales. (2) The evolution process of the resilience of agricultural heritage not only reflects the response to external changes, but also the reconceptualization and transformation of its value system. Furthermore, this paper attempts to explore the logic of value reconceptualization of agricultural heritage: (1) Spatial empowerment: the interactive development of landscape genes and agricultural heritage. (2) Order reconceptualization: adaptive management of social dynamics and agricultural heritage. (3) Local knowledge: joint cultivation of multiple stakeholders and agricultural heritage. Through the study of the resilience of agricultural heritage, it provides a new perspective and strategy for the protection and sustainable development of agricultural heritage, which is of guiding significance for formulating relevant protection policies and promoting regional sustainable development, and helps the revitalization of rural areas.

The innovative development of tourism resources in the context of the construction of a strong tourism country concerns the fundamental task of high-quality development of tourism. Scene theory, which is based on cultural consumption and cultural practice and emphasizes local cultural style and aesthetic characteristics, provides a new perspective for tourism resource innovation. On the basis of clarifying the connotation of tourism scene theory, this paper analyzes the logic and path of scene-driven tourism resource innovation with Yucun and Anjihood, Anji, Zhejiang province as typical cases. It is found that: as an important cultural power to drive the innovation of tourism resources, scene has formed two basic logics of creative production and creative weaving, the former embodied in the scene as a form of new quality productive forces to stimulate creativity, with the system and activities as the internal mechanism to attract and cohesion of creative talents and trigger the creative groups to carry out creative practices, resulting in the scene of the internal resonance, which drives the continuous creation of new tourism resources; the latter embodied in the scene as the reconstruction of the structure of tourism resources. Scene as the weaving force to reconstruct the structure of tourism resources, with capital and media as the internal mechanism, to create an aesthetic style and attract consumer groups to take pictures, resulting in the external resonance of the scene, which in turn drives the re-empowerment of silent resources. This paper reveals two different paths of scene-driven tourism resource innovation from the perspective of scene theory, with a view to expanding the value connotation of scene creation in tourism resource innovation and tourist destination shaping, and providing new ideas for tourism resource innovation in the New Era.