Accounting for Economic Value of Cultivated Land Resources in Anhui Province and Its Spatial and Temporal Heterogeneity Characteristics——Empirical Test Based on 105 County-level Panel Data
The economic value accounting of cultivated land resources is a key link in implementing the protection and use of natural resource assets owned by the whole people.Using 105 county-level administrative units in Anhui Province as accounting units,the income restoration method is used to calculate the economic value of cultivated land resources.Model algorithms such as dynamic degree,spatial autocorrelation,and kernel density are used to analyze the spatiotemporal heterogeneity characteristics of cultivated land resource value,divide different types of regions,and propose differential regulation strategies.The research results show that the overall value of cultivated land resources shows a fluctuating upward trend.In 2020,the economic value of cultivated land resources in Anhui Province increased by 177 500 yuan·hm-2 compared to 2015,with an increase of 29.57%and an annual growth rate of 5.91%;the economic value of cultivated land resources in the accounting unit ranges from 52 900 to 2 978 500 yuan·hm-2,with an average of 982 800 yuan·hm-2,showing a spatial pattern of increasing inward from both northern and southern Anhui;The Moran's I index of the economic value of cultivated land resources is between 0.102 and 0.265.Since 2016,the Moran's I index has continued to rise and the amplitude of change has gradually decreased,indicating that the spatial agglomeration trend of the economic value of cultivated land resources in Anhui Province is continuously significant and relatively stable;many"high high"clustering areas are distributed in southern and northern Anhui,while the"low low"clustering areas are mainly in central Anhui;the overall shift of the kernel density distribution curve to the right further indicates that the economic value of cultivated land resources is showing a rapid increasing trend;it is divided into three regional types:northern Anhui for improving quality and increasing production,central Anhui for exploring potential,and southwestern Anhui for maintaining and developing.For each type,the precise protection and management strategies for arable land resources are proposed.The research results may provide a basis for enhancing the economic value of cultivated land resources and scientifically determining their compensation standards.
cultivated land resourceseconomic valuespatiotemporal heterogeneityaccountingAnhui Province
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