摘要
近年来,我国水稻田的化除面积增加很快,除草剂的使用已成为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日益突出,对生态系统的平衡产生威胁性影响,引起农产品农药含量超标,或者即使不超标也由于食物链的生物富集最终进入人体危害健康。除草剂致癌、致突变和致畸胎的事实不胜枚举。除草剂在水稻田使用,至少有70％进入土壤,直接影响土壤微生物的生长和代谢。
Effects of butachlor on CH4 emission and the count of anaerobes in paddy soil or in the media were studied. The results obtained showed that CH4 emission and growth of methanogens would be greatly affected at field rates of butachlor within 2 weeks, but this adverse effects would disappear as time went on. CH4 emission and methanogenic activities would be retarded by butachlor in media for longer time. The amount of butachlor available to act upon anaerobes depended on application rate and method of application.
出处
《微生物学报》
CAS
CSCD
北大核心
1997年第6期477-479,共3页
Acta Microbiologica Sinica
基金
国家自然科学基金
浙江省教委科研基金资助项目
