County-level planning is an essential component of China's "five-levels, and three-categories" territory spatial planning system. This paper builds a Geodesign framework for county-level comprehensive territory spatial planning based on the smart territory spatial planning ideology and requirements. The framework is established based on the classical Geodesign framework proposed by Carl Steinitz but with supporting methods and techniques supplemented. It mainly focuses on the procedure (steps), key problems, and methods and techniques for county-level comprehensive spatial planning problem-solving. Models are the core of the Geodesign framework. "Evaluation Model", which is constructed based on the "Ecological Civilization" ideology, focuses on regional ecological risk assessment. "Change Model" converts territory spatial planning to a multi-objective optimization problem to support intelligent decision-making, which combines quota limits with spatial management in county-level planning. "Impact Model" provides an approach for public participation in planning based on the "people-oriented" principle. The framework requires the support and combination of classical methods and novel techniques, including big data, internet, artificial intelligence and decision support system technology. The Geodesign framework contributes to methodological research on smart territory spatial planning and provides practical approaches for the planning ideology of "ecological civilization", "people-orientation", and "intelligent decision-making".

The "Life Community of Mountains, Rivers, Forests, Fields, Lakes and Grasses" is a new understanding of the harmonious and unified relationship between human and nature, and an integral part of the theory of ecological civilization. Aiming for the research paradigm of the "Life Community of Mountains, Rivers, Forests, Fields, Lakes and Grasses", the research focuses and characteristics of the theory and application of this "Life Community" are analyzed systematically in three stages, namely fundamental study, rapid development, and diversified prosperity. The connotation of the Life Community of Mountains, Rivers, Forests, Fields, Lakes and Grasses is re-examined, and the new conceptual understanding, basic characteristics, and the relationship between human and the Life Community are clarified. In the end, the "problem-goal-spatiotemporal strategy-purpose" path of implementation of the life community is pointed out; and an institutional system is built with emphases on monitoring and supervision of the natural resources, property rights of natural resources assets, planning of the territory, management of use of the territory, ecological restoration of the territory, and the relevant laws and regulations. In this way, the path makes the life community more scientific and practicable, thus supporting the decision-making for the territorial space governance and the modernization of the governance capabilities.

With China's urbanization entering the middle and late stages of development, and under the background of spatial planning reform and high-quality development, urban regeneration is the key issue of urban spatial sustainable development in the stock age. However, there are still some problems such as unclear positioning of urban regeneration in the land and space planning system, and how to better promote the convergence of land and space planning and integration of urban regeneration in the New Era, which needs to be explored urgently on how urban regeneration is to be an effective means to solve the urban disease and carry on the urban space management. This paper briefly reviews the research progress of urban regeneration, and takes the large-scale urban regeneration planning-London opportunity area planning as a typical case, analyzes the concept connotation, evolution process and different types. It concentrates on the analysis of three typical opportunity area planning projects, including commercial development with emphasis on finance and innovation industry, cultural tourism with emphasis on maintaining and continuing historical features, and industrial development with emphasis on brownfield restoration and developing green industry. On this basis, the inspiration of London opportunity area regeneration planning to China's land and space planning is put forward to make clear the location of urban regeneration and the compilation requirements and standards in the five-level and three-type land and space planning system; and to take urban regeneration as the key point to promote the harmony between the quality of human settlement environment and social equity of urban stock space. Meanwhile, different strategies for urban regeneration need to be constructed aimed at different types of cities and different types of urban plots according to local conditions. In addition, we should learn from nature-based solutions and respect the natural resources and geographical attributes of urban areas; continue the historical context of the city, explore and create a local and distinctive urban spirit.