外源物质对除草剂污染土壤中微生物生物量及除草剂快速降解的影响

来源 :浙江大学 | 被引量 : 10次 | 上传用户:InsideCSharp
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近年来,除草剂的使用已成为农业生产的一种必不可少的手段,因而除草剂大量使用的环境污染问题亦日益突出,如对生态系统的平衡产生威胁性影响,引起农副产品农药含量超标,或者即使不超标也由于食物链的生物富集最终进入人体而危害健康等等。针对除草剂面源污染的特点以及自然土壤中微生物的特性,我们认为通过添加有机、无机营养物质等农业措施激发土壤自然微生物的活性应是行之有效的除草剂污染土壤修复的途径,但这方面的应用基础研究成果在国内外的报道甚少。本研究以弱碱性的莠去津(三氮苯类除草剂)和弱酸性的甲磺隆(磺酰脲类除草剂)
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