SERVICE VALUE EVALUATION OF FARMLAND ECOSYSTEM SERVICES AND SUGGESTIONS FOR SPATIAL PLANNING IN SHAANXI PROVINCE
Through analyzing the temporal and spatial changes in the value of farmland ecosystem services in Shaanxi province,this research provide guidance for the green development of agriculture in Shaanxi province and providing reference for the development of farmland ecosystems in other western provinces.Taking the farmland ecosystem in Shaanxi province as the research object,this research constructed an indicator system for calculating the service value of farmland ecosystems,analyzed the relevant data of farmland ecosystems in Shaanxi province from 2006 to 2021,and explored the changes in the service value of farmland ecosystems in Shaanxi province.The results were showed as follows.(1)During this period,the total service value of farmland ecosystem in Shanxi province showed a gradually increasing trend.Among them,supply services firmly occupied a dominant position,with a much higher value contribution than other services,and were constantly expanding.Regulatory services ranked second and showed a fluctuating upward trend.The value of support services was relatively low and showed a fluctuating upward trend.In terms of negative value,the value of environmental pollution showed a trend of first increasing and then decreasing.(2)From a spatial perspective,in 2021,the total service value of farmland ecosystems in various cities in Shaanxi province ranged from 936 to 44.398 billion yuan.The value of farmland ecosystem services per unit area fluctuated between 23 832.91 and 197 856.75 yuan/hectare,with a significant difference.In terms of spatial distribution,it presented a characteristic of high in the middle and low in the north and south.Therefore,Shaanxi province should accelerate the construction of agricultural infrastructure and improve the ecological environment,while adapting to local conditions,promoting agricultural industrialization and promoting the comprehensive development of rural economy.The Guanzhong region should emphasize the development of efficient and characteristic agriculture,the northern Shaanxi region should emphasize the development of sustainable ecological agriculture,and the southern Shaanxi region should emphasize the development of ecological leisure agriculture.
farmlandecosystemservice value evaluationspatiotemporal variationShaanxi province
NETL
NSTL
万方数据
