基于数量、质量、潜力"三位一体"定量评价的承德市自然资源禀赋研究OA

Natural resource endowment reflects the spatial distribution,overall strengths and weaknesses,and structural composition of resources in a region.Understanding resource endowment is fundamental to the management of resource development and utilization,making its quantitative assessment highly significant.We take Chengde City,a national demonstration zone for ecological civilization construction,as the study area,establish an evaluation index system comprising 18 indicators that cover the quantity,quality,and potential of multiple categories of natural resources,and develop a quantitative assessment method for natural resource endowment based on"foundation × thickness".By comprehensively applying the geographic concentration index,standard deviation ellipse,and kernel density analysis,this study analyzes the spatial distribution characteristics of natural resource endowment in Chengde City and delineates its endowment zones.The results indicate that:1)Forest and groundwater are the superior resources,farmland,construction land and grass are the weaker resources,while surface water and mineral are the inferior resources.2)Resource endowment shows concentration characteristics at different levels:The superior endowment level appears wide coverage and local enrichment,the obviously optimal equilibrium endowment level presents small-region coverage and local aggregation,while the obviously weak equilibrium and obviously fragile endowment levels are widely distributed in the west and north of Chengde,respectively.3)The overall trend of natural resource endowment in Chengde is superior in the south region and inferior in the north,which can be divided into rich areas of single resource,uniform areas of superior resources,unbalanced areas of superior and weak resources,uniform areas of weak resources and fragile areas of multiple resources.Each resource area has its own unique resource combination type.4)Ground water resource plays a vital role in supporting other resources.It is suggested that in the future,we should start from the unbalanced areas of superior and weak resources,strengthen the dual management of scientific land greening and sustainable development and utilization of groundwater resources,optimize the spatial pattern of natural resources,and enhance the regional natural resource endowment.The research demonstrates that the established quantity-quality-potential"Trinity"evaluation method can realize the quantitative evaluation of natural resource endowment at the municipal scale,and providing a scientific basis for promoting the paradigm shift from single factor management to all factor integrated protection and restoration of natural resources.