水生态学杂志2026，Vol.47Issue(2)：15-27,13.DOI:10.15928/j.1674-3075.202311240348
土地利用变化对博斯腾湖流域景观格局与生态系统服务价值的影响
Impacts of Land Use Change on Landscape Patterns and Ecosystem Service Values in the Bosten Lake Basin
摘要
Abstract
The Bosten Lake basin serves as a crucial water source conservation area for the"ecological water transfer"project in the lower reaches of Tarim River.In this study,based on remote sensing image data from 1995 to 2020,we analyzed the dynamic changes in land use,landscape pattern change indices,as well as the variations and spatial distribution of ecosystem service values in the Bosten Lake basin over the 25-year period.We aimed to provide scientific support for ecological security in the basin.Using Arc-Gis 10.8 software,land types were classified into ten categories,and six periods of land cover data for the Bosten Lake basin were generated for the study.Results show that:(1)The areas of farmland,grass land,surface water,bare land,construction land,wetland and sandy land in the basin presented a fluctuating growth trend,while forest land,glacial snow and saline land showed a fluctuating decrease in area.(2)Within the 25-year period,the patch number(NP)and patch density(PD)of forest land were highest,fol-lowed by grassland.In contrast,the NP,PD,and landscape shape index(LSI)of sandy land and saline-al-kali land were smaller.This indicates that forest land exhibited a relatively high degree of spatial pattern complexity,while sandy and saline-alkali lands had a low level of patch irregularity and simple landscape shapes.(3)The ecological service value(ESV)of the entire basin first decreased,then increased and de-creased again during the 25-year period,with the dominant position of regulating service all the time.Grassland,surface water and glacial snow were the primary contributors and most sensitive factors to changes in the watershed ESV.(4)The distribution of terrestrial ecosystem services in the watershed pre-sented significant spatial positive autocorrelation,with enhanced agglomeration.High ESV areas in the watershed were mainly concentrated in water bodies and the surrounding wetlands,and the low ESV ar-eas were primarily distributed in construction,bare and saline lands.The areas of low-high and high-low aggregation were very small,and the changes were not obvious.The findings of this paper provide a theo-retical reference for developing ecological protection and restoration programs in the Bosten Lake basin.关键词
土地利用变化/生态系统服务价值/景观格局/博斯腾湖流域Key words
land use change/ecological service value(ESV)/landscape pattern/Bosten Lake basin分类
资源环境引用本文复制引用
康佳佳,迪丽努尔·阿吉,李平平,胡丛巧,彭清清,王凯..土地利用变化对博斯腾湖流域景观格局与生态系统服务价值的影响[J].水生态学杂志,2026,47(2):15-27,13.基金项目
国家自然科学基金项目(42361006,41661007). （42361006,41661007）
