河南省鹤壁市淇河流域(淇县段)农业非点源污染状况调查及评价研究

Investigation and Evaluation of Agricultural Nonpoint Source Pollution in Qi County Section of Qi River

为了解淇县淇河流域农业非点源污染状况,采用资料搜集为主,现场监测补缺、核实为辅的方法,对淇县农业面源污染进行了调查。选取2013年淇县下辖的各乡镇各污染源排放的COD、氨氮、总氮、总磷为评价指标,用等标污染负荷法分区域、分来源进行了污染负荷评价。结果表明:淇县等标污染负荷总计42 051.61×10~6m^3/a,其中,西岗镇最高,等标污染负荷为8 189.42×10~6m^3a,灵山办事处最低,等标污染负荷为987.98×10~6m^3/a;畜禽养殖业源等标污染负荷最高,为36 384.95×10~6m^3/a,其次是种植业源,等标污染负荷为3 023.92×10~6m^3/a。污染负荷比中总磷污染负荷比最高占61%,其次是总氮占27%。

In order to understand non-point source pollution in Qi County Qi River Basin, this paper uses the data collection method, field monitoring and verification by auxiliary to conduct a survey of agricultural non-point source pollution in Qi County. Selecting the COD, ammonia nitrogen, total nitrogen, total phosphorus indexes collected from pollution sources of Qi County in 2013, pollution loading method was adopted to evaluate the pollution load by regions and pollution sources. The results showed that：the total pollution load of Qi County is 42 051. 61 ＆#215; 106 m3 t/a, of which Xigang accounts for the highest pollution load of 8 189. 42 ＆#215; 106 m3 t/a, Lingshan Office has the lowest pollution load of 987. 98 ＆#215; 106 mt/a. Livestock industry has highest source pollution load of 36 384. 95 ＆#215; 106 m3 t/a, followed by the planting industry with 3 023. 92 ＆#215; 106 m3 t/a. The highest pollution load of total phosphorus pollution loading accounted for 61%, followed by 27% for total nitrogen.