吉首市农业面源污染分析及控制策略
Journal of Jishou University(Natural Science Edition)(2019)
Abstract
为了明确武陵山区农业面源污染状况,以吉首市为研究对象,利用输出系数法和等标污染负荷法对农业面源污染总氮(TN)、总磷(TP)负荷进行估算与分析评价.结果表明,2018年吉首市农业面源污染TN和TP负荷分别为992.698和82.887 t,相应的等标污染负荷量为9.927×108和4.148×108 m3;污染源对TN和TP负荷的贡献率从大到小依次是农业化肥、农村生活和畜禽养殖.针对吉首市农业面源污染现状,提出了合理的防治策略.
MoreKey words
pollution,city,non-point
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