吉首大学学报(自然科学版)

• 特色专栏:武陵山片区研究 • 上一篇    下一篇

吉首市农业面源污染分析及控制策略

刘思,姚康康,杨仕锃,周影茹   

  1. (1.吉首大学生物资源与环境科学学院,湖南 吉首 416000;2.吉首市环境保护局,湖南 吉首 416000)
  • 出版日期:2019-11-25 发布日期:2019-12-16
  • 通讯作者: 周影茹(1985—),女,陕西西安人,吉首大学生物资源与环境科学学院讲师,博士,主要从事农业面源污染防治研究.
  • 基金资助:

    国家自然科学基金资助项目(41661096);生态旅游湖南省重点实验室平台项目(STLV1802)

Analysis and Control Strategy of Agricultural Non-Point  Source Pollution in Jishou City

LIU Si, YAO Kangkang, YANG Shizhen, ZHOU Yingru   

  1. (1. College of Biology and Environmental Sciences, Jishou University, Jishou 416000,Hunan China;  2. Jishou City Environmental Protection Bureau, Jishou 416000, Hunan China)
  • Online:2019-11-25 Published:2019-12-16

摘要:

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9.927×108和4.148×108 m3;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.

关键词: 武陵山区, 农业面源污染, 输出系数法, 等标污染负荷法, 控制策略

Abstract:

In order to clarify the agricultural non-point source pollution in Wuling Mountain Area, the total nitrogen (TN) and total phosphorus (TP) pollution loads from agricultural nonpoint source pollution in Jishou city in 2018 were estimated and assessed according to the output coefficient method and the equivalent pollution load method. The results show that the TN and TP pollution loads of agricultural non-point source pollution in Jishou City are 992.698 and 82.887 t, respectively, and the corresponding equivalent pollution loads are 9.927×108 and 4.148×108 m3. The greatest contribution rate of pollution sources to TN and TP loads comes from agricultural fertilizer, followed by rural life and livestock and poultry farming.The research puts forward  suggestions and countermeasures for the agricultural non-point source pollution in Jishou City.

Key words: Wuling Mountain Area, agricultural non-point source pollution, output coefficient method, equal standard pollution load method, control strategy

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