率水流域非点源污染分析及施肥措施模拟  

Non-point source pollution analysis and fertilizer management simulation in Shuaishui Basin

作　　者：王媛[1] 楚春礼[1] 刘夏 鲁海宁 毕孟飞[3] 王玉秋[1] WANG Yuan;CHU Chunli;LIU Xia;LU Haining;BI Mengfei;WANG Yuqiu(College of Environmental Science and Engineering,Nankai University,Tianjin 300350,China;Huangshan Ecological Environment Bureau,Huangshan 245000,China.;Huangshan Environment Monitoring Station,Huangshan 245000,China)

机构地区：[1]南开大学环境科学与工程学院,天津300350 [2]黄山市生态环境局,安徽黄山245000 [3]黄山市环境监测站,安徽黄山245000

出　　处：《水资源与水工程学报》2019年第4期6-13,共8页Journal of Water Resources and Water Engineering

基　　金：黄山市科学技术项目(NHZCG2017Z159);南开大学亚洲研究中心课题(AS1812)

摘　　要：率水流域周边农业用地施用的大量化肥为流域内非点源负荷主要来源之一,研究该流域内不同施肥措施对其下游千岛湖水体中氮磷污染控制具有重要意义。通过搭建率水流域SWAT模型,设置化肥减量,粪肥替代和深层施肥3种施肥情景,探究其对流域非点源污染输出的响应特征。结果表明:化肥减量50%可减少约9.77%的总氮负荷和4.42%的总磷负荷,粪肥替代化肥对于氮磷负荷的削减率较低,深层施肥的总氮负荷削减率远低于总磷,化肥减量和深层施肥联合措施可分别降低10.11%和3.38%的总氮、总磷负荷,即为流域内施肥措施的最佳方案,同时基于SWAT模型的施肥情景模拟对削减流域非点源污染具有参考意义。The large amount of fertilizers applied on the agricultural land around the Shuaishui Watershed is one of the main sources of the non-point source(NPS)load;therefore,it is of great significance to study different fertilization management for NPS-TN and NPS-TP control for the downstream Qiandao Lake water.The SWAT model was established to simulate NPS pollution under three fertilization scenarios:fertilizer reduction,manure substitution and deep fertilization.The results showed that the fertilizer reduction can reduce about 9.77%of the TN and 4.42%of the TP load.The NPS-TN load removal rate under deep fertilization is lower than that of the NPS-TP.Reduction rate of nitrogen and phosphorus load of manure substitution is low.The combined measure of fertilizer reduction and deep fertilization could reduce 10.11%for NPS-TN load and 8.38%for NPS-TP load,which is the best solution for fertilization management in the basin.In addition,the model-based fertilizer simulation management have guiding significance for reducing NPS pollution.

关 键 词：非点源污染 施肥措施 负荷分析 SWAT模型 情景分析 率水流域 

分 类 号：X522[环境科学与工程—环境工程]