Study on the spatio-temporal evolution of ecosystem service value and driving force in Changfeng County based on the fishing net approach
Based on the theory of ecosystem service,the essence of rural revitalization is to grow the rural landscape ecosystem service value(ESV).Taking Changfeng County,Anhui Province,as an example,using land use data for 3 periods from 2000 to 2020,fishnet approach combined with landscape type dynamic attitude,unit area value equivalent approach and geodetector model were used to analyze landscape structure change characteristics,ESV and their spatial characteristics and ESV spatial differentiation drivers,to suggest landscape ESV enhancement in Changfeng County.The results showed that in the past 20 years,Changfeng County was mainly dominated by arable landscapes,which accounting for more than 0.8 of the total,and water bodies and woodland landscapes had increased significantly,with an increase of 3.669× 103 and 1.258× 103 hm2.The total ESV had shown an increasing trend from 1.098 × 109 yuan to 1.756 × 109 yuan,mainly due to the positive effect of returning farmland to forests and lakes on ecosystems service function enhancement.The distribution of areas with high ESV was consistent with the distribution of water bodies,wetlands and woodlands.The sensitivity coefficients of each landscape type were less than 1,and the assessment results were credible.The driving force of NDVI was the highest(0.349),indicating it was the main driver of spatial differentiation of ESV in Changfeng County,and the multifactor interaction was more significant than the single factor interaction.
ecosystem service valuefishnet approachcold and hot spot analysisgeodetector
万方数据
维普
