太湖平原水网区非点源污染模型的适用性研究  

Research on applicability of non-point source pollution model of water network plain of Taihu Lake

作　　者：朱乾德[1] 孙金华[1] 颜志俊[1] 秦飞[2] 陈成[1] 

机构地区：[1]南京水利科学研究院水文水资源与水利工程科学国家重点实验室,江苏南京210029 [2]黄河流域水资源保护局,河南郑州450003

出　　处：《人民长江》2013年第11期39-45,53,共8页Yangtze River

基　　金：水利部公益性行业科研专项(200801028);中央级公益性科研院所科研专项基金(Y511003;Y512001;Y513001;Y513011);中央分成水资源费项目(1261230210025)

摘　　要：随着点源污染逐步得到有效治理,非点源污染成为太湖流域平原水网区水质恶化的主要原因之一。引入AnnAGNPS模型对太湖流域雪堰镇非点源污染进行模拟研究。在模型的应用中,建立了数字高程模型、土壤质地、土地利用等空间和属性数据库,并通过实地试验、调查研究等多途径确定了模型分析计算所需的气象、作物、作物管理、径流曲线数、曼宁系数、氮磷输入等参数,对模型分析计算成果用典型研究区同步的水质水量监测数据进行了校验。结果表明,该模型在太湖流域平原水网区具有一定的可行性与适用性,氮模拟效果比磷好,为进一步加强太湖流域平原水网区非点源污染研究奠定了基础,为防治太湖水体富营养化提供科技支撑。Point source pollution has been gradually controlled effectively in water network plain of Taihu Lake Basin, however non - point source pollution is still one of the main reasons for the water quality deterioration. The AnnAGNPS was introduced to simulate and research the non - point source pollution in Xueyan Town of the basin. In the application of the model, the spatial and attribute database was established including digital elevation model, soil texture and land use, and by the ways of field test, investigation and research etc. , the meteorological parameters, crop parameters, crop management parameters, runoff curve number, Manning coefficient, nitrogen and phosphorus input parameters were determined. To calibrate and validate the model, the water quality and quantity were monitored simultaneously. The simulation results show that the model is feasible and applicable for the water network plain of the basin ; the simulation effect of nitrogen is better than phosphorus. The model provides a foundation to strengthen the study on the non - point source pollution in water net plain and also a scientific support to prevent the eutrophication in Taihu Lake.

关 键 词：平原水网区 太湖流域 非点源 ANNAGNPS 

分 类 号：X52[环境科学与工程—环境工程]