江西水利电力大学学报2026，Vol.45Issue(4)：1-9,9.
赣江上游平江流域 NDVI变化及其对径流的影响研究
NDVI change and its effect on runoff in Pingjiang River Basin in upper reaches of Ganjiang River
摘要
Abstract
In order to explore the dynamic changes of vegetation cover and their impact on hydrological processes in the ba-sin under the background of climate changes and human activities,we collected the NDVI data,meteorological and hydrolog-ical data,and land cover data of the Pingjiang River Basin in the upper reaches of the Ganjiang River from 2001 to 2022.Then the Sen+Mann-Kendall method,land cover transition matrix,partial correlation analysis,residual analysis and Budy-ko equation were adopted to examine the spatiotemporal characteristics,causes and runoff responses of NDVI changes in the basin.The results show that the NDVI growth rate in Pingjiang River Basin from 2001 to 2022 was 0.004/a.The spatial dis-tribution shows a pattern of being high in the perimeter and low in the middle,with the largest proportion of significant in-creased areas.Temperature was the main climatic factor driving the changes in NDVI,and 81.99% of the regions have sig-nificant positive correlation,and human activities affect NDVI through land cover changes.Among them,forest maintenance shows a positive effect,whereas impervious surface expansion shows a negative effect.The relative contribution rates of cli-mate change and human activities to the NDVI change are 58.21% and 41.79% respectively.The elasticity coefficient of runoff to NDVI is-0.25,indicating that an increase in NDVI has a reducing effect on runoff.The research results can pro-vide a scientific basis for the coordinated development of ecological construction and water resource management in the basin.关键词
NDVI变化/土地覆被变化/偏相关分析/径流响应/平江流域Key words
NDVI change/land cover change/partial correlation analysis/runoff response/Pingjiang River Basin分类
农业科技引用本文复制引用
刘惠英,吴祥宇,章顺华,邹攸..赣江上游平江流域 NDVI变化及其对径流的影响研究[J].江西水利电力大学学报,2026,45(4):1-9,9.基金项目
南昌工程学院博士科研启动项目(2023kyqd004) （2023kyqd004）
江西省2025年研究生创新专项资金项目(YC2025-S239) （YC2025-S239）
江西省教育厅科学技术研究项目(GJJ211914) （GJJ211914）
