关键词: 地理系统, 人地耦合, 国土空间, 保护治理

Abstract:

The geosystem mainly studies the interaction mechanism between human and natural system on the surface of the earth, emphasizing the integration of human-land use relationship, natural and human factors, namely the human-land use coupling systems. Applications of the geosystem in the land space is mainly composed of geodecisions-making, geosimulation and geoengineering, and the interactions among these constitute geogovernance. Land space is the material carrier of the common practice of nature and human, the extent to which human shaped by nature is no less than that of opposite transformation, therefore, geosystem theory with the core of Coupled Human and Natural Systems has become the theoretical basis of land spatial planning and renovation. Based on the coupled human and natural systems, the remodeling of land space is ultimately reflected in various activities of human acting on the natural environment with the form of geogovernance. With the development of reform and opening-up for 40 years, Chinese land space has been basically in a relatively stable pattern and mainly consists of economic zones, poor areas and small towns, which is different from that of developed countries. We are in a state of "three-dimension-transformation coupling", i.e. urbanization, townization and ruralization. Thus, we must attach importance to the studies of strategic areas based on the Belt and Road Initiative, such as the Pan-Third Pole, the South China Sea Rim, and the Northeast Asia-Arctic. According to the theory of Coupled Human and Natural Systems and the value equilibrium of land space, the basic scientific problem of land space remodeling is the evolution and driving mechanisms of Coupled Human and Natural Systems. Land spatial planning can be divided into three types: Development planning, controlling planning and restoration planning. The protection and management of land space includes the whole area renovation with the core of land use, the systematic restoration with the core of ecological civilization, and the comprehensive management with the core of social harmony. The development goal of human activity system is to establish a community of shared future for mankind, correspondingly, that of the natural system is to establish a sustainable system, so the ultimate development goal of Coupled Human and Natural Systems is to form a community of shared destiny with the interaction between human and nature.

Key words: geosystem, coupled human and natural systems, national land space, geogovernance