浙江省土地利用类型与河流水质关系的空间尺度研究  

Study on Spatial Scale of the Relationship between Land Use Type and River Water Quality in Zhejiang

作　　者：王新宇 梅琨 时浩南 吴宇鹏 WANG Xinyu;MEI Kun;SHI Haonan;WU Yupeng(School of Environmental Science and Engineering,Suzhou University of Science and Technology,Suzhou,Jiangsu 215009,China;School of Geography Science and Geomatics Engineering,Suzhou University of Science and Technology,Suzhou,Jiangsu 215009,China;Suzhou Key Laboratory of Spatial Information Intelligent Technology and Application,Suzhou,Jiangsu 215009,China)

机构地区：[1]苏州科技大学环境科学与工程学院,江苏苏州215009 [2]苏州科技大学地理科学与测绘工程学院,江苏苏州215009 [3]苏州市空间信息智能技术与应用重点实验室,江苏苏州215009

出　　处：《环境监测管理与技术》2025年第1期21-27,共7页The Administration and Technique of Environmental Monitoring

基　　金：国家自然科学基金资助项目(41807495);温州市科技计划基金资助项目(S2020001);苏州科技大学人才启动基金资助项目(332114806)。

摘　　要：以浙江省为研究区,划分不同空间尺度的圆形与河岸带缓冲区,建立多元线性回归(MLR)与地理加权回归(GWR)模型,探讨不同空间尺度下各土地利用类型对河流水质的影响。结果表明:圆形缓冲区下水质与土地利用类型的相关性高于河岸带缓冲区;pH值在500 m圆形缓冲区下与草地相关性最高,溶解氧、高锰酸盐指数、总磷在1500 m圆形缓冲区下与森林相关性最高,氨氮在1000 m圆形缓冲区下与建设用地相关性最高;在圆形缓冲区下,MLR模型的R^(2)为0.132~0.431,GWR模型的R^(2)为0.287~0.569,均优于河岸带缓冲区。Taking Zhejiang as the study area,it was divided into circular and riparian buffer zones of different spatial scales.Multiple linear regression(MLR)and geographically weighted regression(GWR)models were established to explore the impact of different land use types on river water quality at different spatial scales.The results showed that the correlation between water quality and land use type in circular buffer zone was higher than that in riparian buffer zone.pH value had the highest correlation with grassland in the circular buffer zone with a radius of 500 m.Dissolved oxygen(DO),permanganate index(I_(Mn))and total phosphorus(TP)had the highest correlation with forest in the circular buffer zone with a radius of 1500 m.Ammonia nitrogen(NH_(3)-N)had the highest correlation with development land in the circular buffer zone with a radius of 1000 m.In the circular buffer zones,R^(2)of MLR model ranged from 0.132 to 0.431,and that of GWR model ranged from 0.287 to 0.569,both of which were better than that of riparian buffer zone.

关 键 词：土地利用类型 河流水质 相关性 空间尺度 浙江省 

分 类 号：X522[环境科学与工程—环境工程]