作　　者： ; (张仁陟）; (张天佑）;

机构地区： 天水师范学院

出　　处： 《干旱区资源与环境》 2011年第7期168-172,共5页

摘　　要： 通过设置在甘肃省定西市安定区李家堡乡的田间定位试验,研究了不同耕作方式下(NTS、TS、NT、T)土壤微生物生理类群数量和酶活性及其相关性。结果表明:与传统耕作(T)相比,保护性耕作方式(NTS、TS、NT)能显著增加土壤微生物生理类群数量,增强酶活性。不同的保护性耕作方式下,土壤微生物生理类群数量和酶活性存在显著差异。相关性分析表明,土壤微生物生理类群数量和酶活性间大部分呈显著或极显著正相关。 Based on different tillages experiment in Dingxi,the effects of soil microbial physiologies colony,soil enzyma activities and their relationship under different conversation tillage measures（no-tillage and straw cover,plough with straw incorporated,no-till without straw,conventional cultivation and no straw） were studied.The results showed that comparing with conventional cultivation,soil microbial physiologies colony numbers and enzyma activities increased significantly under conversation tillages,but the effects were different under different conversation tillage measures.There were significant correlations between soil microbial physiologies colony and soil enzyma activities.

关 键 词： 保护性耕作 微生物生理类群 酶活性 相关关系

领　　域： [农业科学] [农业科学]