基于改进输出系数模型的潍坊地区非点源氮磷污染特征分析  

Characterization of Non-point Source Nitrogen and Phosphorus Pollution in Weifang Based on Improved Output Coefficient Modeling

作　　者：张雪 韩策 王昊 刘玉玉 ZHANG Xue;HAN Ce;WANG Hao;LIU Yuyu(School of Water Conservancy and Environment,University of Jinan,Jinan,Shandong 250022,China;Pipe China Eastern Crude Oil Storage&Transportation Company Limited,Xuzhou,Jiangsu 221008,China;Water Resources Research Institute of Shandong Province,Jinan,Shandong 250013,China)

机构地区：[1]济南大学水利与环境学院,山东济南250022 [2]国家管网集团东部原油储运有限公司项目管理中心,江苏徐州221008 [3]山东省水利科学研究院,山东济南250013

出　　处：《水利与建筑工程学报》2024年第4期200-207,共8页Journal of Water Resources and Architectural Engineering

基　　金：国家自然科学基金(42377077);山东省社会科学规划研究项目(23CGLJ04)。

摘　　要：为更好地提高潍坊地区水环境质量,探究潍坊市非点源污染状况非常必要。借助ENVI、ArcGIS软件、结合网络资料及实地调研,采用改进输出系数模型对潍坊地区2004—2020年总氮(total nitrogen,TN)、总磷(total phosphorus,TP)非点源污染负荷进行估算并分析其时空变化特征和污染来源;通过单位面积负荷系数法评价氮磷污染程度。结果表明:潍坊市非点源氮磷污染负荷在时间上呈现先下降后上升的趋势,且TN的总污染负荷是TP的7.15~7.37倍;在空间上整体分布不均,表现为“中间低四周高”;居民生活和土地利用是主要污染源,其中耕地是最主要的污染来源。潍坊市氮磷污染整体上对环境影响较大。In order to better improve the quality of water environment,it is necessary to explore the nonpoint source pollution situation in Weifang.With the help of ENVI and ArcGIS software,combined with network data and field re-search,the improved output coefficient model was utilized to estimate the nonpoint source pollution load of total nitro-gen(TN)and total phosphorus(TP)in Weifang from 2004 to 2020 to analyze its spatial and temporal change charac-teristics and pollution sources and evaluate the degree of nitrogen and phosphorus pollution by the method of load coeffi-cient per unit area.The results are as follows.The non-point source pollution load of nitrogen and phosphorus in Wei-fang City shows a decreasing and then increasing trend,and the total pollution load of TN is 7.15~7.37 times of that of TP.The overall distribution is uneven,showing"low in the middle and high in the surroundings".Residential life and land use are the main sources of pollution,of which,arable land is the most significant source of pollution.Nitro-gen and phosphorus pollution in Weifang City has a greater impact on the environment.

关 键 词：非点源污染 污染负荷 改进输出系数模型 总氮 总磷 潍坊地区 

分 类 号：TU43[建筑科学—岩土工程]