生态科学2025，Vol.44Issue(4)：29-38,10.DOI:10.14108/j.cnki.1008-8873.2025.04.004
洞庭湖流域农业生态系统服务价值时空格局及驱动力分析
Temporal and spatial pattern and driving force analysis of agroecosystem service value in Dongting Lake Basin
摘要
Abstract
Based on land use data,the agroecosystem service value(AESV)of 200 counties in Dongting Lake Basin from 1990 to 2020 was evaluated by using the equivalent factor method,and the impact mechanism of spatial differentiation was revealed by the Geodetector.The results show that:(1)The AESV in Dongting Lake Basin has shown an obvious upward trend in the past 30 years,with a cumulative increase of 105300 yuan·km-2,in which the hydrological regulation value contributes the most,while the water supply value is negative.(2)The AESV shows a"horseshoe shaped"spatial distribution characteristics of high in the middle and north,and low in the east,south and west.The AESV of Dongting Lake Plain and central Hunan hills is generally high,while the AESV of the southeast,southwest and northwest border areas of the basin is low.(3)The temporal differences of AESV are mainly caused by the unit price change of the three major grain crops,while the spatial differentiation is the result of the joint action of multiple factors.Among them,the single factor driving force of slope is the strongest,and the interaction of natural environment and social economy is the largest.Therefore,the comprehensive management of water environment in Dongting Lake Basin should be strengthened,and the agroecosystem should be improved according to local conditions.关键词
农业生态系统服务价值/时空分异/驱动机制/洞庭湖流域Key words
agroecosystem service value/spatiotemporal differentiation/driving mechanism/Dongting Lake Basin分类
资源环境引用本文复制引用
周文强,陈文豪,王金龙,杨伶,韩宇..洞庭湖流域农业生态系统服务价值时空格局及驱动力分析[J].生态科学,2025,44(4):29-38,10.基金项目
国家社会科学基金一般项目(22BJY094,22BGL169) （22BJY094,22BGL169）
湖南省自然科学基金面上项目(2023JJ31016) （2023JJ31016）
湖南省教育厅科学研究重点项目(22A0174,23A0220) （22A0174,23A0220）
