巢湖流域农田氮磷污染物径流流失及淋溶特性  

FARMLAND RUNOFF NITROGEN AND PHOSPHORUS POLLUTANTS AND ELUVIATION CHARACTERISTICS IN CHAOHU DRAINAGE BASIN

作　　者：张浏[1,2] 施超[3] 丁芳芳[3] 颜存奎[3] 冯景伟[3] 尹大强[2] 

机构地区：[1]安徽省环境科学研究院,合肥230001 [2]长江水环境教育部重点实验室同济大学环境科学与工程学院,上海200092 [3]合肥工业大学土木与水利工程学院,合肥230009

出　　处：《环境工程》2013年第S1期251-254,280,共5页Environmental Engineering

基　　金：国家水体污染控制与治理科技重大专项(2009ZX07316-005)

摘　　要：分别对巢湖流域水田和旱田降雨径流和雨水淋溶污染情况进行了测定,测定结果表明:水田径流中氨氮、硝态氮、溶解磷和COD浓度明显高于旱田径流中相应污染物浓度值,水田径流中总磷浓度在部分测定时间相差不大,其余测点值均高于旱田径流中总磷浓度值。水田淋溶液中氨氮和硝态氮浓度同旱田淋溶液中相差不大,多数情况下水田淋溶液中溶解磷和总磷浓度同旱田淋溶液中相差不大;淋溶液中氨氮、硝态氮、溶解磷、总磷浓度均显著高于径流中;水田淋溶液中COD值略低于水田径流中COD值;旱田淋溶液中COD浓度均值与旱田径流中COD浓度均值相差不大。Determination of farmland runoff pollution and eluviation in paddy field and dry land was carried out,the results showed that the concentration of ammonia nitrogen,nitrate,dissolved phosphorus and COD in paddy field runoff was higher than that in dry land runoff. The concentrations of total phosphorus in paddy field and dry land runoff were almost the same in part of the determination time,while which was higher in the paddy field runoff. In the eluviating solution,the concentration difference of ammonia nitrogen and nitrate was small,and the concentrations of dissolved phosphorus and total phosphorus were almost the same in most of the determination time. Compared with the farmland runoff,higher concentrations of ammonia nitrogen,nitrate,dissolved phosphorus and total phosphorus were observed in eluviating solution. In paddy field,the concentration of COD in eluviating solution was lower than that in the runoff,while the concentration difference of COD in eluviating solution was almost the same in the runoff in dry land.

关 键 词：农田径流 氮磷 淋溶 测定 

分 类 号：X524[环境科学与工程—环境工程]