摘要
[目的]为了加强拉市海湿地的保护与利用。[方法]以美泉行政村、均良行政村、海东行政村、海南行政村4个行政村作为调查采样区域,每个调查采样区以农村主要生活污水和与湿地相邻的农田为调查采样点,随机选取典型农村生活生产排放污水作为样品。[结果]研究区域的化肥施用强度均超过了发达国家警戒线(225 kg/hm2.年);农村面源污染的主要原因在于化肥的过量施用,并导致氮、磷的流失。[结论]拉市海湿地周边面源污染情况较严重,需采取相关措施进行治理。
[Objective] The study aimed to strengthen protection and utilization of Lashihai wetland. [Method] Take administrative villages of Meiquan, Junliang, Haidong, Hainan as region of investigation and sampling, rural domestic wastewater and farmland of adjacent wetlands in each region, randomly taken typical discharging wastewater as samples. [ Result ] All of the strength of chemical fertilizer application overran the warning line of developed country; the mason of non-point source pollution in rural was excessive application of chemical fertilizer, which lead to nitrogen and phosphorus loss. [ Conclusion] Tne situations of non-point source pollution around Lashihai wetland area were relatively serious, which should take measures to control.
出处
《安徽农业科学》
CAS
北大核心
2008年第30期13374-13375,共2页
Journal of Anhui Agricultural Sciences
关键词
湿地
农村面源污染
水体富营养化
Wetland
Rural non-point source pollution
Water eutrophication
