地理空间信息2024，Vol.22Issue(4)：60-64,5.DOI:10.3969/j.issn.1672-4623.2024.04.014
湘西州土地利用与生态系统服务价值时空演变
Spatio-temporal Evolution of Land-use and Ecosystem Service Values in Xiangxi Tujia and Miao Autonomous Prefecture
摘要
Abstract
To analyze the change law of land-use and ESV in Xiangxi Tujia and Miao Autonomous Prefecture,based on seven periods of land-use data,we used the land-use dynamic degree,transfer matrix and grey relational degree to study the relationship between land-use and ESV in Xiangxi and evaluate the ecological risk of land.The results show that ①from 1990 to 2018,forest and cultivated land are the main land-use types in Xiangxi,and the comprehensive land-use dynamic degree are the highest from 2013 to 2018.②The total value of ecosystem services in Xiangxi shows a trend of increasing first and then decreasing,with a decrease of 1.721 billion yuan.③ESV in the study area is divid-ed into 5 grades,and there is obvious regional difference in space,the southeast is higher and the northwest is lower.④From 1990 to 2018,the impact of forest on ESV is the most severe.⑤The overall level of ecological risk in Xiangxi is low during the study period.In the land-use,we should pay attention to the forest conservation,the cultivated land area does not reduce and the quality does not reduce,reducing the human con-struction activity to the ecosystem destruction.关键词
土地利用/生态系统服务价值/相关性/格网分析/时空变化Key words
land-use/ESV/correlation/grid analysis/spatio-temporal change分类
天文与地球科学引用本文复制引用
李萱,李静芝..湘西州土地利用与生态系统服务价值时空演变[J].地理空间信息,2024,22(4):60-64,5.基金项目
湖南省自然科学基金项目(2018JJ3526) （2018JJ3526）
湖南省教育厅科学研究项目(17C0037). （17C0037）
