阿特拉津对黑土酶活及其微生物多样性影响研究

发布时间：2019-05-10 18:31

【摘要】：以黑土为研究对象,采用室内培养方法,研究阿特拉津对黑土脲酶、转化酶、多酚氧化酶影响,采用RAPD技术分析土壤微生物群落。结果表明,低浓度(25 mg·kg-1)阿特拉津对黑土脲酶活性有促进作用,中、高浓度(50~125 mg·kg~(-1))阿特拉津对黑土脲酶活性具有抑制作用且浓度越高抑制越明显;阿特拉津抑制土壤转化酶活性,培养结束时(35 d),抑制作用仍然存在;阿特拉津对多酚氧化酶活性表现为抑制-促进-恢复规律;阿特拉津输入改变土壤微生物群落结构,浓度越高变化越明显。
[Abstract]:The effects of atrazine on urease, invertase and polyphenol oxidase in black soil were studied by means of indoor culture. Soil microbial communities were analyzed by RAPD technique. The results showed that low concentration (25 mg kg-1) atrazin could promote urease activity in black soil, and high concentration (50 鈮，

本文编号：2473901