Concession is of great significance for the construction of China's national park system, and systematic research on community concession is of great value. Based on typical practice cases at home and abroad, the study employs methods such as multi-case comparison to conduct a logical analysis of community concession practices and model comparison. The results indicate that: (1) The practical logic of community concession shows strong consistency. The goal logic is to balance the protection of national parks with community autonomous development by empowering community management. The subject logic is to appoint communities with high stakes in the national parks as concessionaires. The granting logic is non-competitive targeted concession, and the business logic involves the participation and assistance of multiple parties, with both one-level and two-level concession structure coexisting. (2) Community concession differs significantly from non-community concession in terms of guiding philosophy, concession objectives, granting methods, concession structures and support mechanisms, representing a new model of national park concession. Finally, policy recommendations are put forward from the aspects of establishing the top-level design of community concession, strengthening the management system of community concession, and improving the assistance mechanism of community concession.

What governance model can be adopted to better enhance the ecological, social and economic effectiveness of nature reserve governance? Few studies have conducted quantitative comparative analyses based on the community perception perspective. Based on the Institutional Analysis and Development (IAD) framework, 17 communities within and around the Giant Panda National Park were selected. Differences in community perception of State-led, co-managed, and community-based and other elements affecting community residents' perceptions of effectiveness will be compared, by means of questionnaires, semi-structured interviews, one-way ANOVA, and stepwise regression analysis. Our study found that: (1) Community residents have the most positive perceptions of the ecological effectiveness of the Giant Panda National Park and the most negative perceptions of the economic effectiveness. (2) The community-based model has the best performance in the three dimensions, while State-led conservation has the second best performance in the ecological and social dimensions, and co-managed model has the second best performance in the economic dimensions. (3) The community residents' perceptions of the effectiveness of the Giant Panda National Park are affected by the combination of the natural geographic conditions, economic and social attributes, and other factors.We point out that all types of governance models have their advantages and disadvantages, and community-based governance is not a "panacea" for all public pond resource problems. Therefore, it is advocated to carry out local adaptation of the selection of nature reserve governance models. The study expands the application scenarios of the IAD framework, deepens the theoretical understanding of nature reserve governance models, and provides empirical insights for community coordination of nature reserves in China.

The green transformation in agricultural production is an important research topic in the field of agricultural sustainable development. Based on the concept of agricultural green development and theoretical analysis in terms of the transformation path, this paper aims to examine the major processes of the agricultural green development practices and assess the effects in reducing chemical products input and increasing agricultural output within the Yangtze River Economic Belt (YREB) in the past 20 years in combination of the methods of literature investigation, semi-structural interviews, questionnaire analysis and decoupling analysis. The results show that since 2015 the provincial-level regions within the YREB issued a set of policies related to the agricultural green development actions, which encouraged the farmers to replace the traditional chemical fertilizer with alternative and organic fertilizer, prevent and control the devastations caused by the diseases, insects and herbs with ecological measures, and reuse the agricultural residues in order to reduce the consumption of chemical fertilizer and pesticides and herbicides in agricultural production. Compared to the other regions in China, the YREB has a five-year lead in terms of achieving the great aims of zero growth and reduction of pesticide and chemical fertilizer use in agricultural production. Nevertheless, the current chemical fertilizer and pesticide usage intensity in the YREB is still more than two times the international average level. Although the chemical fertilizer and pesticide usage intensity in the downstream areas of the Yangtze River is much higher than that in the upstream areas due to the differentiation in terms of multiple crop index and agricultural output density, the chemical fertilizer and pesticide usage intensity appears to gradually disconnect with the multiple crop index and agricultural output density because of the wide application of new technologies for agricultural green development. However, the ongoing agricultural green development agenda within the studu area still faces challenges, including the rising costs in upgrading the production technology and agricultural machinery and equipment and the severe difficulty in overcoming ageing issues and introducing or fostering young talents in agricultural sector.

As one of the important subsystems of the global carbon system, the land use system plays a pivotal role in achieving global carbon neutrality. Based on the theoretical analysis and inductive deduction, this paper establishes a theoretical analysis framework for the carbon effect of the land use system from a social-ecological perspective. It summarizes the research history of the carbon effect of the land use system, basic measurement methods, and simulation prediction method systems. Additionally, it initially establishes an optimized path and toolbox for carbon neutrality in the land use system. Currently, basic research on measuring carbon emissions and carbon sequestration in the land use system has matured, and the research focus has shifted from basic research to comprehensive exploration of influencing factors, quantitative prediction and simulation of carbon emission reduction and sequestration enhancement, and carbon neutrality path research. However, several challenges remain: the lack of regional correction for equivalent coefficients in basic carbon emissions and sequestration measurements; the omission of governance dimensions in the theoretical analysis framework, leading to a dearth of collaborative governance scenario simulation studies for optimizing the carbon effect of the land use system among different stakeholders; and the absence of cost-benefit analysis in carbon effect scenario simulations, etc. In the future, more attention should be given to deepen the research on the complex system theoretical framework and perspective of the carbon effect of the land use system, strengthen the research on the governance mechanism and path of the carbon effect of the land use system, and expand the research on the synergistic path of carbon neutrality of the land use system, etc., which will provide theoretical support and practical reference for optimization of national land space in the context of the dual carbon goals.

The rapid urbanization has profound impacts on traditional villages, and clarifying its rigid constraints and activation drivers for preservation and utilization is of significant theoretical and practical importance. This paper takes traditional villages in the Pearl River Delta (PRD) as the research object, supported by long-term tracking investigations and return visits. Based on the dialectical relationship between the impacts and opportunities brought by rapid urbanization, the paper attempts to construct a targeted research framework for preservation constraints and activation utilization, revealing the major challenges, progress, and development prospects of traditional village preservation and utilization in the PRD. The results indicate that: (1) The challenges of preservation and utilization are mainly reflected in the alienation and damage of material elements such as the overall pattern and settlement space, as well as facing constraints such as numerous historical issues and high input costs. (2) Rapid urbanization also serves as an important opportunity for the revitalization and development of traditional villages in the PRD. The expansion of urban functions, population aggregation, and consumption potential have promoted new progress in preservation and utilization, including "remediation" based on government investment, "self-rescue" assisted by multiple subjects, "salvation" under the intervention of social enterprises, and "rescue" seizing policy opportunities. The paper also combines land spatial planning, new urbanization, rural revitalization, and other aspects to forecast the development prospects of traditional village preservation and utilization in the PRD in the New Era.

Improving the level of rural amenity is an inevitable requirement to meet the growing needs of the people and achieve rural revitalization. Comprehensive land consolidation provides a new path for amenity-driven rural development. The paper constructs the conceptual framework and index system of rural amenity based on the theory of local consumerism, the theory of rural multifunctionality and the theory of demand hierarchy, analyzes the influence mechanism of comprehensive land consolidation on rural amenity from the perspective of multifunctionality of land use, and utilizes questionnaire survey data from villagers and tourists in 10 tourist villages in 6 districts and counties in Wuhan metropolitan area, and uses analytic hierarchy process method, entropy value method and difference-in-difference method to explore and study the level of regional amenity and the amenity enhancement effect of comprehensive land consolidation. The study finds that: (1) Rural amenity is a kind of rural characteristic that embodies the quality of local consumer goods, has the function of consumption, can meet the needs of foreign tourists for rural style living and local villagers for quality of life, and prompts people to feel comfortable and at ease, including natural amenity, production amenity, social amenity, and cultural amenity. (2) Due to different needs of villagers and tourists, there are differences in their evaluations of rural amenity. (3) From the perspective of villagers, comprehensive land consolidation can significantly improve the overall level and various dimensions of rural amenity, and has robustness. In conclusion, in the future, we should increase investment in consolidation funds and expand the scope of consolidation and continue to promote the pilot work of comprehensive land consolidation based on the full consideration of the interests of villagers and tourists, especially the villagers', and the integration of the elements of mountains, water, forests, fields, lakes, grasses and sands.

The cognition of tourism resources is the basic work of the development of tourism industry. Traditional research and development of tourism resources usually rely on the development of single unit, and neglect the aggregation characteristics and combined value of resources. This study focuses on the regional tourism resources combination, and reorganizes the relevant research basis of regional tourism resources combination under the context of national strategic orientation and tourism development needs in the New Era. For the value transformation and sustainable utilization of tourism resources, the connotation of regional tourism resources combination is analyzed from the aspects of regional characteristics, combined characteristics and value characteristics. Combining with knowledge mapping, text analysis, image analysis and other technologies, this paper puts forward the identification ideas, methods and techniques of regional tourism resources combination. It sums up five key problems of the regional tourism resources combination: the principle and basis of the division, the mode and method, the evaluation system, the path of value transformation, and the guarantee system. Going forward, we will endeavor to advance the theoretical research and practical exploration of regional tourism resource combination.

Urban wetlands are an important part of the urban system and have very important ecological and social functions. Wetland city is an honorary initiative implemented by the Ramsar Convention to commend cities for their achievements in protecting wetlands. The United Nations Sustainable Development Goals (SDGs) are the key to solving global problems. It is leading and guiding wetland protection and urban development. This study connects the wetland cities with the United Nations Sustainable Development Strategy and attempts to explore new paths for synergy between urban development and wetland protection. (1) It sorted out the development history and certification process of wetland cities comprehensively, and summarized the experience of 13 wetland cities of China. (2) It introduced the three stages of sustainable development, and summarized international initiatives related to wetlands and cities based on Sustainable Development Goals. (3) The future trend should aim to promote the exploration of sustainable development paradigms of wetland cities towards "international convention organization-creation effectiveness monitoring-development indicator evaluation", and to enrich high-quality development practices of wetland cities towards "national strategic needs and local urban construction". This study provides technical support for intelligent decision-making services of urban wetlands focusing on "urban wetland remote sensing monitoring-urban wetland simulation prediction-urban wetland comprehensive assessment and services".

Under the background of vigorously promoting the territorial spatial planning in the New Era, the efficient, sustainable and fair allocation of territorial spatial resources have become the basic research topic that must be carried out. Taking Guangxi, which is located in the core area of ecological barrier in Southern China, as the study subject, this study used the quantitative supply and demand matching process under the accounting of ecosystem service value and the analytical method of PLE-ES supply and demand quadrant matrix. The objective was to analyze the quantitative relationship and spatial matching characteristics of supply and demand for ecosystem services under the process of territorial spatial resource allocation. This study aimed to construct an optimization method for territorial spatial resource allocation centered on the balance of supply and demand for ecosystem services. The results showed that: (1) In 2000, 2010 and 2020, the mean difference between supply and demand of Guangxi's territorial spatial resources support services (Q) was 0.30, the mean difference between supply and demand of regulating services (Q) was 0.33, the mean difference between supply and demand of supply services (Q) was 0.06, and the mean difference between supply and demand of cultural services (Q) was 0.03. The overall performance was that the demand of support services and cultural services exceeded supply, and the supply of regulating services and supply services exceeded demand. In terms of allocation quality, except for the regulating services coordination degree (C), which was 0.16, the other three types of services coordination degree (C) were greater than 0.60, indicating fair and efficient allocation. (2) The supply and demand matching relationship of productive resources in the study area were mainly in the "high-supply low-demand" area, the living resources were mainly in the "low-supply low-demand" area, and the ecological resources were mainly in the "low-supply low-demand" and "high-supply low-demand" areas. (3) Taking the supply and demand balance of ecosystem services as the value orientation, Guangxi was divided into three primary units for resources allocation optimization, namely the resources-rich area in Western Guangxi, the integrated development area in Eastern Guangxi, and the Beibu Gulf Economic area. Identified the supply source and demand destination of territorial spatial resources, and then constructed a "one map" of territorial spatial resources circulation that can promote regional collaboration and rational resources utilization.

Chinese agricultural production is changing from factor input type to efficiency enhancing type. Whether land transfer can drive agriculture into a high-quality development track, the effects and mechanisms have not been effectively demonstrated. Based on the theoretical analysis, the article uses the SBM-GML model to construct green total factor productivity indicators to measure the high-quality agricultural development level in each provincial-level region, and then uses the panel data models with interactive fixed effects to test the land transfer impact on high-quality agricultural development and its mechanism based on the panel data of 30 provincial-level regions of China from 2005 to 2022. The study found that, (1) land transfer significantly contributes to high-quality agricultural development, and this finding still holds in controlling regional omitted variables, systematic GMM estimation, instrumental variable estimation and exogenous shock test. (2) Land transfer mainly promotes high-quality agricultural development by increasing agricultural output, while its effect on reducing agricultural non-point source pollution is unclear. Although land transfer has not significantly promoted large-scale management, it has effectively improved the land and labor utilization efficiency which helps to promote high-quality agricultural development. (3) Different forms of land transfer have heterogeneous impacts on high-quality agricultural development, compared with spontaneous forms of transfer such as exchange or transfer, the market-based forms such as lease or shareholding have a more significant impact on high-quality agricultural development. (4) Different land transfer recipients also have heterogeneous impacts on high-quality agricultural development, compared with transferring land to ordinary farmers, transferring land to new business entities such as family farms, professional cooperatives and enterprises can significantly contribute to high-quality agricultural developmentt.

Reclaimed water allocation is an important policy to cope with the problem of water resources shortage and water environment pollution. At present, China urgently needs to establish a set of theoretical system of reclaimed water allocation in line with China's national conditions and water resources characteristics. This study summarizes the main experience of recycled water utilization in the United States, Japan, Singapore and Israel. Three basic elements of reclaimed water allocation in China are proposed: price mechanism, supply and demand situation and allocation relationship. The theoretical model is constructed based on the basic elements: First, comprehensively consider the cost of reclaimed water utilization, supply and demand sides of the shadow price of reclaimed water, to build a reclaimed water comprehensive price model; secondly, comprehensively consider the use of reclaimed water in the industry sector, and the driving factors of the demand for reclaimed water in various industries, to build a reclaimed water demand forecasting model; thirdly, in accordance with the requirements of the target in a top-down system, establish the interval two-layer planning models of reclaimed water allocation, in order to achieve the "region-industry" at different levels of the allocation of reclaimed water. This study aims to enhance the systematic and pioneering nature of the theory of reclaimed water allocation, and to provide reference for the implementation of wastewater resource utilization.

In the complex human and water adaptation process, river basins have become the containers and links that nurture human civilization and witness the evolution of urban and rural areas. River basin habitats refer to the adaptive systems formed by the interaction and coevolution of river basin and human settlement, characterized by integrity, dynamism, and synergy. From the multi-disciplinary common problems, the river basin habitats (riv-habitats) science encompasses three key issues: element coupling, scale correlation, and system evolution. It refines the theoretical model of the "node-setting-connection" structural theory and the "locality-adaptation" evolutionary theory and also improves a new paradigm of interdisciplinary approach and artificial intelligence for river basin habitats. As an interdisciplinary field that adapts to the needs of the times and that aims at the sustainable development goal of harmonious coexistence between humans and nature, riv-habitats science comprehensively applies the knowledge and methods of multiple disciplines to carry out interdisciplinary systematic research on river basin habitats, which will contribute to the ecological civilization and high-quality development and construction of river basins in the New Era.

The patterns of territorial spatial development determine the dynamic carbon balance in regional terrestrial ecosystems. In the context of global "carbon neutrality" and China's new urbanization transformation, it is urgent to establish development patterns that enhance terrestrial ecosystems' carbon sink capacity. To this end, the study establishes a systematic cognitive framework for the carbon balance effects of land use under urbanization. It proposes a "direct-indirect-potential" typology for the impact of urbanization-induced land use changes on terrestrial ecosystems' carbon cycling. To achieve the goal of carbon sequestration and increase in terrestrial ecosystems, the study explores the inherent logic of low-carbon optimization in territorial spatial layout. It also deconstructs the governance dimensions of low-carbon optimization in territorial spatial layout concerning "quantity, spatial layout, and spatial utilization". Finally, the study proposes policy instruments and improvement suggestions for supporting low-carbon adjustments in territorial spatial layout. In conclusion, the study's first contribution is the enhancement of low-carbon thinking in territorial spatial development and utilization. Secondly, it broadens the research path for low-carbon optimization in territorial space. The study highlights the positive role of territorial spatial layout optimization and governance in achieving regional "carbon neutrality" goals.

In the context of Chinese-style modernization, the common prosperity effect of tourism resource development is explored to point out the direction of exploration for accelerating the high-quality development of tourism industry and realizing the goal of common prosperity. This study clarifies the mechanism of tourism resource development through the income growth effect, infrastructure enhancement effect, culture communication effect and factor flow effect to promote the realization of common prosperity, and constructs a comprehensive evaluation system of tourism resource development in terms of scale and quality. The spatial econometric modeling is applied to empirically test the impact of mountain tourism resource development on the common prosperity based on the relevant data at the district and county level of the Western Hunan Area from 2007 to 2021. Ultimately, it proposes targeted development model optimization strategies based on the real needs of enhancing the value of resources, promoting rural revitalization and contributing to the common prosperity. The results show that: (1) The overall level of tourism resource development in Western Hunan Area shows a gentle growth trend, but the spatial difference is obvious, in which Yongding district and Fenghuang county are always the dominant parties, while Luxi county is in a relatively disadvantageous position. (2) The level of common prosperity in Western Hunan Area continues to improve, but there are still imbalances between districts and counties, with Yongding district, Jishou city and Hecheng district, where the municipal administrative center is located, in the top three. (3) Tourism resource development has a significant positive spatial spillover effect on common prosperity, that is, it can enhance the level of common prosperity in the region and adjacent regions. Both tourism scale and tourism quality can be effective in empowering common prosperity, and the positive effect of tourism quality on common prosperity is better than that of tourism scale. The impact of tourism resource development on common prosperity varies significantly in different regions, with Zhangjiajie city having the largest common prosperity effect of tourism resource development, followed by Huaihua city and Xiangxi prefecture. Guided by the goal of common prosperity, the models of sustainable utilization, quality upgrading, and regional integration for the development of mountain tourism resource are proposed.

In the context of digital transformation, establishing and improving the monitoring mechanism for the implementation of territorial spatial planning is an important key to enhance the efficiency of spatial governance as well as national governance. The implementation monitoring of territorial spatial planning in the New Era involves long-term and dynamic monitoring of the planning process and the spatial changes influenced by development, utilization, and protection. It serves as a necessary prerequisite for understanding the real-time status of spatial planning and promoting real-time feedback for planning optimization. This article systematically reviews the development of China's related work on planning implementation monitoring, and summarizes the shortcomings of existing work from positioning, content and technical framework, and transmission mechanism. Based on the analysis above, it clarifies the connotation of "continuous monitoring" and the positioning of "comprehensive supporting" for the implementation monitoring of territorial spatial planning. Furthermore, with the case of Ningbo city in Zhejiang province, it constructs the content framework of implementation monitoring for territorial spatial planning from three aspects: the implementation of planning requirements, the external effects of planning, and the adjustment of planning during processes. Also, it improves the monitoring indicators and builds flexible units for monitoring analysis and predicting models for future warning. All in all, it provides references for conducting comprehensive implementation monitoring methods of territorial spatial planning on city level.

The fundamental guarantee of national food security lies in cultivated land. In the background of territorial and spatial use control, the single control of cultivated land quantity from the past has turned to the implementation of "storing grain in the land" strategy nowadays, and the "integrated food security thought" has also given a new connotation to the national food security strategy. The governance of "non-grain" in the new era needs to explore the response logic of cultivated land use control and thus construct a theoretical framework system. By reviewing the implementation of "non-grain" governance policies and the current dilemma between public goods and autonomous management, standard identification and policy implementation, consumption transformation and social service, this paper points out that the response logic of cultivated land use control should be focused on the three different dimensions of governance perspectives, namely bottom-line control, dynamic development and value realization. Aiming at each perspective, analysis of relationships should focus on the following aspects, protecting national and personal interests from the perspective of security and efficiency coordination, dealing with the self-sufficiency of rations and the upgrading of consumption from the perspective of supply and demand matching, realizing the priority and versatility of cultivated land utilization from the perspective of resource and asset transformation. The theoretical framework should refer to the principles of multi-level planning targets, refined zoning management, life cycle process and differentiated rule system. Further, the establishment of the use control framework consists of four core contents, regulation basis, pattern, section and methods. The regulation basis should refine the rules of "transfer-in" and "transfer-out" of cultivated land, which is helpful to improve the rule of law. The regulation pattern should make good use of the combination of partition, element and behavior, and carry out differentiated control measures mainly according to "three areas and three lines". The regulation section should highlight the "non-grain" governance of life cycle process, which needs to strengthen the role of use control in all aspects of investigation, registration, planning, restoration, utilization and supervision. The regulation methods should focus on innovation in aspects of administrative, social, economic and technical fields. In conclusion, this study can provide reference for the policy design of preventing "non-grain" and improving China's most stringent system of cultivated land protection.

Assessment and monitoring are an essential part of promoting the achievement of the sustainable development. Currently, theoretical research and localized program around the Sustainable Development Goals (SDGs) have been in full swing, but the relevant assessment and practice process is still lacking in the consideration of target constraints and hierarchical transmission. To this end, the study establishes a sustainable development assessment oriented towards the SDGs and concerned on the systematicity and openness, which can be deconstructed and applied in multiscale spatial units. The results show that, at the national and regional levels, the gap between SDGs and the current level in 2020 regarding to the dimensions of safe ecology, pleasant environment and green development is rapidly narrowing. On the contrary, there is still a large gap on the dimension of harmony society, though the index experiences a steady growth, which can be interpreted as the uneven income distribution and large urban-rural differences. It is crucial to identify the priorities of different regions and the synergies and trade-off between indicators in different scaled objectives to promote the implementation of the SDGs. The proposed assessment program supports the diagnosis of regional problems of sustainable development and the understanding of interrelationships between different regions and goals. It also facilitates the active participation of different levels and actors in the cause of sustainable development within an open framework, and helps to systematically assess and monitor the process of realizing SDGs.

Territorial and spatial use regulation can correct market failure, but its policy externality may widen the development gap between regions and affect the overall high-quality development of China's economy. It is of vital significance to clarify and validate the practical effects of territorial and spatial use regulation on high-quality economic development and the underlying theoretical logic. Marginal analysis and geographical detector methods were adopted in this study. Based on provincial panel data from 2010 to 2021, this paper analyzes and verifies the effects of territorial and spatial use regulation on high-quality economic development in China from two dimensions: regulation intensity and regulation validity. Research findings: (1) From a national perspective, the influencing factors of high-quality economic development are opening-up, technology investment, validity of territorial and spatial use regulation, capital stock, human capital, and intensity of territorial and spatial use regulation. (2) There is regional heterogeneity in the impact of human capital and technology investment on high-quality economic development. (3) There is an inverted U-shaped curve relationship between the intensity of territorial and spatial use regulation and the level of high-quality economic development. With the increase in the intensity of territorial and spatial use regulation, the level of high-quality development of regional economy first increases and then decreases. (4) The validity of territorial and spatial use regulation is significantly and positively correlated with the level of high-quality economic development. The factor contribution of the validity of territorial and spatial use regulation to high-quality economic development is 0.406. The following conclusions can be drawn: Scientific implementation of territorial and spatial use regulation can promote high-quality economic development in China. The study proposes suggestions and enlightenments on promoting high-quality development of the China's economy, such as maintaining the optimal range of territorial and spatial use regulation intensity, improving the compensation mechanism, enhancing the validity of territorial and spatial use regulation, and formulating targeted implementation plans for high-quality economic development in different regions.

After the national territory spatial planning system was established, the relevant work about performance evaluation of spatial development should be carried out scientifically and systematically, and it will become an important support for spatial development and land use control in territory spatial plannings at all levels. Based on the spatial performance evaluation in the existing practice, the study tries to explain the connotation of performance evaluation of spatial development in the context of territory spatial planning system, and then combines the ongoing practices at various levels to propose a framework system and key issues. According to the study, the topic about performance evaluation of spatial development originates from the serious problems existing in traditional spatial development models and the long-term strategic demand for optimizing the spatial pattern. It has become an important research direction in the field of spatial development in new development stage, and will contribute to the optimization and high-quality development of various types of space patterns in territory spatial planning. At the same time, the performance evaluation and improvement of spatial development should be coordinated with territory spatial planning at all levels, forming a multi-level framework from macro- to micro-perspective. The performance evaluation of spatial development can provide comprehensive ideas for guiding the improvement of spatial performance in territory spatial planning, as well as inspiration for the formulation of corresponding policies such as spatial redevelopment.

On the basis of putting forward the connotation of marine geoeconomics, this paper combs the development process, research hotspots and research priorities of Chinese scholars, summarizes the research characteristics and existing shortcomings of marine geoeconomics, and looks forward to the future research trends. (1) Marine geoeconomics derives from geoeconomics and marine geopolitics, and is influenced by geopolitics. The core theme of the study is the economic and trade linkages of sea related countries. (2) The evolution process of marine geoeconomics thought can be divided into four stages: the embryonic period of thought, the initial formation period, the rise and development period, and the steady exploration period. The hotspots of the research are from the germination of marine geo-thought which stays at the ideological level, to strategic thinking around the struggle for sea power, to the qualitative exploration under the system of geo-economic theory, and to the quantitative analysis which is becoming more diversified and clearer. (3) China's research focus mainly includes marine geo-economic theories, marine geo-economic activities, marine geo-economic relationship, marine strategic resources competition pattern, marine geoeconomic strategies, high seas protected areas, etc. (4) At present, the study of marine geoeconomics in China is still in its initial stage of exploration, and the relevant basic theoretical research and quantitative analysis from multi-scales and multi-perspectives are relatively lacking, and the disciplinary characteristics of geography and resource science have not been fully reflected. However, it has gradually attracted the attention of multidisciplinary scholars, and the research content shows a trend of diversification. In the future, it is necessary to strengthen the research on the theoretical paradigm and decision-making support of marine geoeconomics research, the development, utilization and protection of high seas resources and its spatial effect, the community of human maritime destiny and the sustainable development and utilization of international marine resources, the security of maritime transport channels and the resilience of port and shipping supply chain, and China's marine geoeconomic environment under the background of the construction of a maritime power.

The typical black soil areas of Northeast China is facing problems such as degradation of ecosystem service functions, fragmented landscape patterns and conflicts between agriculture and ecological space. The scientific formulation of guiding framework for the delineation and optimization of ecological protection redline in black soil areas is of great significance in ensuring food security and ecological safety. This study clarified the meaning of ecological protection redline based on the perspective of ecological security pattern, and proposed the idea of systemic ecological protection redline delineation based on the importance of ecological protection, coordination of agriculture and ecological space, and coordination of natural and social system, and identified ecological protection redline optimization areas by considering the fragmentation and connectivity of ecosystem. The results show that: (1) On the premise of guaranteeing that no high-quality cropland was allocated (the threshold value was 10%), 69646.00 km² of the preliminary delineation area of the ecological protection redline were determined by overlaying extremely important areas for ecosystem services, extremely sensitive areas for ecological environment, and areas with mismatch between supply and demand of ecosystem services, and extracting 34760.16 km² of ecological source land; (2) A total of 10980.90 km² of ecological corridors and 77 ecological nodes were identified based on the ecological source and construction of a comprehensive ecological resistance surface, and their buffer zones and ecological protection areas together constituted an ecological protection redline area of 76234.54 km²; (3) Based on the optimization thresholds of fragmentation (0.20) and connectivity (80), approximately 25.48% of the ecological redline area was in urgent need of optimization. The results of the study improve the scientific and systematic nature of ecological protection redline delineation and optimization, and provide an important basis for the precise control of land space and strengthening ecosystem sustainability management in typical black soil areas of Northeast China, as well as important guidance for small and medium-scale regions with highly intensive land use and scarce ecological space.

Following the concept of system integrated development of "mountains, rivers, forests, fields, lakes, grasslands, and sands" to revitalize the value of rural ecological resources is the key to promoting comprehensive rural revitalization in the New Era. On the basis of revealing the three-stage development connotation of "cultivation of ecological resource value, deepening of ecological resource capital, and realization of ecological resource value" that ecological resource value has gone through, this paper elaborates on the logical relationship between activation of ecological resource value and rural revitalization, and deeply analyzes the three-stage logical mechanism of ecological resource value activation promoting rural revitalization, and explores the typical regional models for promoting rural revitalization, as well as the regional and common practical difficulties that need to be overcome in the process of promoting rural revitalization. Based on the perspectives of logical development, regional difficulties, and common difficulties, a breakthrough path for the activation of ecological resources value to promote rural revitalization is proposed, providing scientific basis and theoretical guidance for revitalizing the value of ecological resources and promoting comprehensive rural revitalization.

The realization of the value of ecological products in the field of natural resources is a key path to implement the transformation concept of "two mountains" and promote ecological benefits and economic development. The existing ecological product value realization mechanism and local practice mode have problems such as single governance subject and insufficient driving force of participating subject. Therefore, this paper analyzes the theoretical logic of ecological product value realization in the field of natural resources with the help of multi-agent collaborative governance theory. Based on this, a multi-agent collaborative mechanism for realizing the value of ecological products in the field of natural resources is designed with the "production-supply-sales" mechanism, the value co-creation mechanism of ecological products in the field of natural resources and the information exchange mechanism of ecological products in the field of natural resources as the core elements. This will help expand the value realization model of land resource ecological products, water resource ecological products, forest resource ecological products, wetland resource ecological products. Guided by the multi-subject cooperative mechanism of ecological product value realization in the field of natural resources, we create a new pattern of ecological product value realization with multi-subject co-governance.

Land use optimization in comprehensive land consolidation can meet the different demands for land under different objectives and alleviate potential land use conflicts. The national pilot project of comprehensive land consolidation in Danzhou city in Hainan province is selected as a case in this study. This paper sets two scenarios for comprehensive land consolidation including ecological value priority and realization potential of ecological product value priority under the trade-off between the increasing ecological value and realization potential of ecological product value. And the land use optimization is based on the third national land resource survey of the pilot project. Then the multi-objective programming model and GeoSOS-FLUS model are employed to optimize the land use structure and land use layout under two scenarios in comprehensive land consolidation. The results show that: (1) Compared to the land use status in 2019, the areas of mangrove forest and paddy field significantly increase under the ecological value priority scenario in the pilot project zone. The overall landscape exhibits a high level of polymerization, while evenness and fragmentation levels are relatively high. (2) Compared to the ecological value priority scenario, the areas of mangrove forest and paddy field decrease under the realization potential of the ecological product value priority scenario in the pilot project zone. And the areas of commercial and service land significantly increase. The level of landscape fragmentation of the overall landscape increases as well. (3) There are similarities and differences between the land use layout under the two scenarios and the construction project layout of comprehensive land consolidation in the Implementation Plan for the National Pilot Project of Comprehensive Land Consolidation in the Starting Zone of Danzhou City. Therefore, the areas and spatial layout of different types of land for increasing ecological value and realizing the potential of ecological product value should be considered overall in the comprehensive land consolidation. Meanwhile, we should pay attention to the effects of land use optimization on the landscape.

The deepening development of globalization and the transformation of regionalization are driving the continuous reshaping of the global political and economic pattern, while overseas strategic pivots, with their prominent geographical influence, play a supporting role in a country's global strategic deployment. This research combined geopolitical theory, new state space theory and location theory to reveal the impact mechanism and logical framework of spatial selection of China's overseas strategic pivots (COSPs) at different scales. On this basis, it preliminarily constructed the spatial selection model of COSPs, and then proposed an action path to put the model into practice from the perspective of actors. The results show that: (1) Geopolitical theory, new state space theory and location theory respectively dominate the spatial selection of COSPs at higher scale, mesoscale and lower scale. Specifically, the five underlying motivations derived from the three-dimensional perspective of "power-capital-space" have driven the rimland between land and sea powers to become the soil for cultivating COSP regions and countries; as a specific form of state spatial selectivity, COSP areas should be selected from strategic functional areas in COSP countries that are deeply supported by state spatial projects and strategies; owing to superior location conditions and location demand, coastal or border hub cities, international ports and parks in COSP countries have become the spatial selection range of COSP cities, ports and parks. (2) Each of the above three theories has its own emphasis, that is, they respectively dominate the spatial selection logic of COSPs at different scales; and they are also nested with each other, which means that the spatial selection of COSPs at various scales will inevitably be influenced by the geopolitical environment, state spatial selectivity and location conditions, thus shaping the logical framework of spatial selection. (3) The spatial selection model of COSPs has the characteristics of interlocking and multi-directional flow. In practice, the basic concept of "government domination and multiple actors initiation" should be adopted to strengthen top-level design, decision-making assistance and technical breakthroughs. The results can enrich the strategic pivot research framework and provide theoretical reference and policy inspiration for enhancing China's geopolitical influence.