In the era when information, labor, capital, and commodities are extremely mobile, knowledge increasingly shows multi-locational interactions characterized by the coexistence of interaction between neighboring areas and interaction between distant places, which has an important impact on regional economic development. Based on a series of changes in the current human social and economic systems, combined with the inherent inadequacies of the traditional regional innovation research paradigm, this article introduced the territorial knowledge dynamics theory with knowledge combination as the core. According to the theory of territorial knowledge dynamics, knowledge combination is the key driving force of regional innovation, characterized by multi-scale networks. The combination of different types of knowledge is realized through interaction between neighboring areas or interaction between distant places in space. According to the spatial pattern of knowledge combination, territorial knowledge dynamics can be classified into multi-locational knowledge dynamics and networks of distant knowledge dynamics. This study built an analytical framework of multi-locational knowledge dynamics for regional economic development. By introducing trust and learning mechanisms, this framework analyzes the mechanism of influence of local contexts, such as formal/informal institutions and cognitive level, on knowledge interaction and combination. Based on the external knowledge linkages and knowledge network externality, this framework explores the path and mechanism of influence of multi-locational knowledge networks on the evolution of regional industrial comparative advantage and endogenous economic growth. Finally, the logic of regional governance in the era of the knowledge economy was summarized from four dimensions: regional governance, regional strategic guidance, policy tools, and knowledge impact. The study of multi-locational knowledge dynamics promotes the regional innovation school's research on knowledge dynamics in regional economic development. It is also helpful for scientifically formulating policies for regional collaborative innovation and high-quality economic development.

In the context of the comprehensive implementation of the rural revitalization strategy, the development of traditional village human settlement environment has gradually become a hotspot of academic research. Based on the organic renewal theory and from the perspectives of renewal goals, objects, subjects, space, timing, and methods, this study systematically examined the basic logic of the organic renewal of traditional villages. The study found that: 1) The goal of organic renewal is to solve the conflict between functional requirements and order protection, and to promote the dialectical unity of the parts and the whole, the present and the future, and functional needs and cultural heritage. 2) The objects of organic renewal are organic order and traditional functions. Among them, dominant genes and recessive genes are the key footholds for the repair of organic order. Site function and areal function are important focuses for the transformation of traditional functions. 3) The main subjects of organic renewal is the renewal community composed of stakeholders, mainly including local residents, governments, enterprises, and scientific research institutions. 4) The space of organic renewal has a zonal spatial structure formed based on the different emphases of renewal. 5) The sequence of organic renewal follows the long-term upgrading intervention intensity cycle, and the short-term serial-parallel progressive upgrading process. 6) The method of organic renewal emphasizes the construction of a specific implementation path through the three steps of precise determination, precise repair, and precise policy implementation. Further, this study constructed an analytical framework for the organic renewal of human settlement in traditional villages from the perspective of strategic target layer-entity cognition layer-organic strategy layer, to provide theoretical support and decision-making basis for the renewal of human settlement environment in Chinese traditional villages.

Cultivated land use system has a great impact on global change and human well-being. This study used the theories and methods of system science to explore the concept, composition, operation, functions, and characteristics of cultivated land use system and constructed the research framework of cultivated land use system, in order to promote the deepening of land system research and solve various problems. The main conclusions are as follows: 1) Cultivated land use system is a compound natural-human system in which agricultural producers and operators invest an appropriate amount of production factors in a certain amount and quality of cultivated land to plant crops, and obtain agricultural products and corresponding benefits. Cultivated land use system consists of cultivated land subsystem, economic subsystem, and social subsystem. It has explicit and implicit structures. 2) The operation and evolution of cultivated land use system is the result of natural ecological processes, economic development processes, and social evolution processes. It also has compound, open, resilient, and multi-level characteristics. 3) The study of cultivated land use system should follow the theoretical framework of element-structure-function-mechanism-regulation. This study revealed the action mechanism of different elements from the composition and influence relationship of various elements; analyzed the structure and transformation of cultivated land use from two aspects of explicit and implicit structure; revealed the impact of functions on structure from three aspects of economic, social, and ecological functions; analyzed the operation mechanism of cultivated land use system from the adaptation and adjustment mechanism of the system to the changes of external environment, the interaction and competition substitution mechanism of system elements, the information transmission mechanism of system operation, the coordination and organization operation mechanism of cultivated land use subjects at different levels, and the emergence mechanism of cultivated land use functions; and used scenario simulation method, multi-objective optimization method, and comprehensive regulation balance method to explore regulation strategies of cultivated land use.

As the use of digital technology gradually pervades all aspects of rural production and life, the countryside is no longer a traditional, stable, and endogenous representation. In parallel, the interaction between digital technology and rural subjects has made the rural economy, society, and culture increasingly complex, and the interaction of the two dynamically reconstructs rural areas. Digital technology has gradually infiltrated from the external system of the countryside to its internal system, changing the internal operation and self-organization mechanism of the countryside. In addition, the transformation of rural space under the impact of informatization is not only embodied in the material aspect, but also in the reconstruction of the social and cultural spatial significance as well as the reconstruction of the territorial system of human-environment relationship, which reshapes rural discourse-power system and the subject identity in endogenous logic. From the perspective of humanism, it is of great significance to think deeply about the interaction between digital technology and people in the information age, such as the subject-object relationship between people and technology on the countryside, the change of discourse-power of rural society, and the change of people's family roles. However, these issues have not been discussed in depth at present. Accordingly, by discussing the multi-dimensional relationship between digital technology and rural development and its multiple effects on the rural space, and paying attention to the alienation and freedom brought by digital technology, the change of discourse and power caused by digital economy, and the reconstruction of the status and identity of women in rural areas, this article explains how digital technology as a non-human actor constructs the rural daily economic life and social relations. This article also provides theoretical analysis for explaining the subjectivity of digital technology as a non-human actor and studying hybrid rurality. It contributes a useful supplement for the analytical framework of rurality and provides a new perspective for digital rural construction and rural revitalization.

Planetary boundaries is a conceptual framework proposed by Johan Rockstr?m in recent years, which is aimed to build a safe operating space for safeguarding humans' survival and development. Since this framework was put forward, it has attracted widespread attention. The skeptics criticized the scientific significance and evaluation methods of the conceptual framework. However, the proponents have gradually improved its evaluation methods and research contents, and explored the downscaling results. In order to promote the understanding and application of this concept and framework, after reviewing the relevant literature we first introduced the conceptual connotation of planetary boundaries and its evaluation results, and then compared them with concepts such as environmental carrying capacity that have been well known to Chinese scholars. We also summarized the controversial views of the conceptual framework, and reviewed its recent development status. Finally, combined with China's current development situation, we analyzed the implications of the conceptual framework of planetary boundaries for China's sustainable development research, and put forward the prospect of future research, including: 1) improving the assessment system of planetary boundaries through making further exploration on the interrelationship between different Earth system processes; 2) defining the links between planetary boundaries, ecosystem services, and human well-being; 3) strengthening research on transformative environmental governance in conjunction with the assessment of planetary boundaries.