浏阳河流域土地利用与水质的相关性研究  

Research on Correlation Between Water Quality and Land-use Change in Liuyang River Basin

作　　者：冯达[1] 段亚锋 FENG Da;DUAN Yafeng(The Surveying and Mapping Research Bureau,Changsha 410007,China;Changsha Environmental Monitoring Center of Hunan Province,Changsha 410001,China)

机构地区：[1]湖南省测绘科技研究所,湖南长沙410007 [2]湖南省长沙生态环境监测中心,湖南长沙410001

出　　处：《地理空间信息》2024年第11期32-37,共6页Geospatial Information

基　　金：国家自然科学基金联合基金资助项目(U19A2051);湖南省自然科学基金资助项目(2023JJ60558)。

摘　　要：为评估浏阳河近20年的水质变化情况,研究其与流域土地利用变化之间的关系,选取浏阳河8个典型断面,对其1996—2020年水质监测数据进行综合分析,并在此基础上结合遥感数据,探讨了浏阳河水质与土地利用变化之间的相关性。结果表明:(1)1996—2020年浏阳河水质总体向好;(2)2000—2020年浏阳河流域城乡用地面积明显增长,主要来源于林地和耕地,其中2010—2020年的土地利用变化更大;(3)随着污水管网的不断完善、污染物治理技术水平的提升和相关环境保护政策的出台,城乡用地集中区域水质改善趋势明显,而在人类活动不集中的近郊林地,水质问题凸显。To evaluate the water quality changes of Liuyang River in the past 20 years and study its correlation with land-use changes in the watershed,we selected 8 typical sections,and analyzed their water quality monitoring data from 1996 to 2020.On the basis of this,combined with remote sensing data,we explored the correlation between water quality and land-use change.The results showed that①from 1996 to 2020,the water quality of Liuyang River improved.②From 2000 to 2020,the urban and rural land-use area of Liuyang River basin significant increased,with the increase mainly coming from forest and cultivated land.Among them,the land-use change from 2010 to 2020 was greater.③The trend of improving water quality is obvious in urban and rural land-use areas,while in suburban forests where human activities are not concentrated,water quality issues are prominent.

关 键 词：浏阳河 水质 土地利用构成 相关性 

分 类 号：P208[天文地球—地图制图学与地理信息工程]