摘要
为了全面了解美国中部Illinois州具有浅层排水系统的轮作农业地区面源污染问题,利用Arc GIS和Arc SWAT等地理信息系统和面源污染模拟模型,对Little Vermillion River流域的地表径流水质进行了模拟,同时对各污染控制措施的控制效果进行了模拟对比。结果表明,过滤带对面源污染的控制效果要优于湿地,其对硝酸盐的去除率可达到10%左右,而对无机磷的去除率更是达到了80%左右,其对污染物的去除率与其设置面积有关;过滤带与湿地联用的净化效果较两者单独应用时要高,能够去除36.30%的总氮和93.04%的总磷。
In order to get a full understanding of non-point source pollution problem in crop rota- tion agricultural areas of Illinois in the central United States, ArcGIS and ArcSWAT as geographic infor- mation system and non-point source pollution simulation model, were used to simulate the water quality of the Little Vermilion River watershed. At the same time, the pollution control effects of filter strips and wetland method were compared. The results showed that the efficiency of filter strips was higher than that of wetland. The removal rates of nitrate and inorganic phosphorus by filter strips were 10% and 80% re- spectively, and they related to the area of the filter strip. The combination of wetlands and filter strips could remove TN and TP by 36.30% and 93.04% respectivly, and the efficiency of the combination was higher than that of single
出处
《中国给水排水》
CAS
CSCD
北大核心
2015年第9期70-74,共5页
China Water & Wastewater
基金
国家自然科学基金资助项目(51179041)
国家水体污染控制与治理科技重大专项(2013ZX07201007)
黑龙江省自然科学基金资助项目(E201206)
哈尔滨市科技创新人才研究专项基金资助项目(2012RFLXS026)
关键词
浅层排水系统
面源污染
过滤带
湿地
SWAT
subsurface drainage system
non-point source pollution
filter strip
wetland
SWAT
