摘要
湿地具有去除农业生产排放物中多余的营养物质和污染物质的特殊结构和功能属性。通过各种途径进入到湿地生态系统中的农药,特别是难降解、高残留、高毒性的化学农药是重要的环境污染物,在被湿地生态系统净化的同时,也对湿地生态系统产生了不同程度的破坏作用。概括了农药在湿地上覆水、土壤、沉积物和生物体中主要环境行为及其生态效应,阐述了人工湿地对含农药污水的去除作用和去除机制,总结了国内外相关领域研究的不足,并展望了未来的研究方向。
Wetland ecosystem has special structure and functional attributes to remove excess nutrients and pollutants in agricultural effluents.As important environmental pollutants,pesticides,especially the refractory,high residual and toxic ones,can enter wetland ecosystems through various channels.Some pesticides will be purified by wetlands to certain extent,however,they have several negative effects on wetlands during purification.The main environmental behaviors and the ecological effects of pesticides in overlying water,soil,sediment and the organism of wetland were reviewed;and the removal function and mechanisms of pesticides sewage in constructed wetlands were illuminated.The shortage of domestic and international related studies were summarized;and the future research directions were look.
出处
《湖北农业科学》
北大核心
2013年第8期1737-1742,共6页
Hubei Agricultural Sciences
基金
国家重大科学研究计划项目(2012CB956100)
国家自然科学基金项目(41101195)
中国科学院知识创新工程项目(KZCX2-EW-319)
关键词
湿地
农药
累积
净化作用
wetland
pesticide
accumulation
purification
