Spatial analysis of production-living-ecological functions and zoning method under symbiosis theory of Henan, China.

Land space is the carrier of human production, living activities, and ecological civilization construction. How to promote the orderly, moderate, and sustainable development and utilization of land space is a scientific problem to be solved. As a key element in China's spatial planning, the quantitative analysis of spatial pattern and functional zoning has become a focus of China's current development. Based on the analysis of land space symbiosis development, this study takes Henan province as the case study; appropriate indicators were selected from the perspective of "production-living-ecological" functions (PLEFs) index that was developed including three subsystems of the production function, living function, and ecological function. The entropy weight method and geographic information system (GIS) spatial method were used to analyze the PLEF status and spatial pattern in Henan province. The PLEF score showed a certain geographical pattern, where in the southwestern areas of Henan province have higher PLEFs than that in the northeastern areas. The PLEFs have an obvious positive correlation in the spatial distribution by spatial correlation analysis. In addition, this study designs a three-dimensional magic cube evaluation model to analyze the symbiotic function type of land space. The results indicated that the PLEFs of Henan province were classified into 13 symbiotic function types of areas, which can better reflect the spatial differentiation characteristics. Moreover, we proposed paths to promote the development and management of each type function area.