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中国农学通报 ›› 2022, Vol. 38 ›› Issue (10): 92-96.doi: 10.11924/j.issn.1000-6850.casb2021-0444

所属专题: 土壤重金属污染 现代农业发展与乡村振兴

• 资源·环境·生态·土壤 • 上一篇    下一篇

重庆农村黑臭水体水质及底泥氮磷污染分析

马杰(), 蒋月, 张秀(), 王俭   

  1. 重庆市生态环境监测中心/农村生态与土壤监测技术研究中心,重庆 401147
  • 收稿日期:2021-04-25 修回日期:2021-07-10 出版日期:2022-04-05 发布日期:2022-05-23
  • 通讯作者: 张秀
  • 作者简介:马杰,男,1986年出生,四川岳池人,高级工程师,硕士,研究方向:土壤和农村生态环境。通信地址:401147 重庆市渝北区冉家坝旗山路252号 重庆市生态环境监测中心,Tel:023-63651239,E-mail: pony312@qq.com
  • 基金资助:
    重庆市生态环境局项目“农村黑臭水体(含底泥)污染源调查和污染状况评估”(20C00805)

Analysis of Nitrogen and Phosphorus Pollution in Water and Sediment of Black and Odorous Water Bodies in Rural Area of Chongqing

MA Jie(), JIANG Yue, ZHANG Xiu(), WANG Jian   

  1. Ecological and Environmental Monitoring Center of Chongqing/ Rural Ecology and Soil Monitoring Technology Research Center, Chongqing 401147
  • Received:2021-04-25 Revised:2021-07-10 Online:2022-04-05 Published:2022-05-23
  • Contact: ZHANG Xiu

摘要:

对84个重庆市农村黑臭水体水质和底泥氮磷的监测数据进行统计及相关性分析,并利用综合污染指数法和有机指数法对水质和底泥污染状况进行评价。结果表明,87%的黑臭水体水质存在不同程度的氮磷污染,且50%的水体同时存在氮磷超标,河沟、沟渠较塘氮污染更为严重;底泥均受总氮、有机氮、总磷污染,70.2%的底泥存在有机污染。水质中总磷、总氮、氨氮3个指标之间存在显著正相关,底泥中有机质、总氮、总磷之间不存在显著相关关系。底泥中总磷与水质中总磷存在显著正相关关系,但相关性较弱,底泥中全氮与水质中总氮不存在显著相关关系。总体上重庆市农村黑臭水体氮磷污染以外源污染为主。

关键词: 黑臭水体, 水质, 底泥, 评价, 农村

Abstract:

This study analyzed the data of water quality and nitrogen and phosphorus in sediment from 84 black and odorous water bodies in rural area of Chongqing, and evaluated the current situation of pollution in water and sediment by comprehensive pollution index method and organic index method. The results show that 87% of black and odorous water bodies have nitrogen and phosphorus pollution, and 50% have excessive nitrogen and phosphorus at the same time, the nitrogen pollution is more serious in brooks and ditches than that in pond. The sediments are 100% polluted by TN, ON and TP, and 70.2% polluted by organic pollutants. There is a significantly positive correlation among the indicators of TN, TP and NH3-N. OM, TN and TP in the sediment show no significant correlation between each other. In general, the black and odorous water bodies in rural area of Chongqing are mainly polluted by exogenous sources.

Key words: black and odorous water body, water quality, sediment, evaluation, rural area

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