Zn^(2+)对土壤微生物碳、呼吸强度的影响  

Effects of Zn^(2+)on Microbial Biomass Carbon and Respiration in Soil

作　　者：陈浮[1] 曹慧[2] 濮励杰[1] 彭补拙[1] 

机构地区：[1]南京大学城市与资源学系水土模拟实验室,南京210093 [2]中国科学院南京土壤研究所,南京210008

出　　处：《无机化学学报》2002年第4期404-408,共5页Chinese Journal of Inorganic Chemistry

基　　金：国家自然科学基金重点资助项目(No.49831070)。

摘　　要：Effects of Zinc on microbial biomass carbon, respiration, and community structure in rice soil were studied. Six samples were added concentrations between 50 and 500mg Zn kg-1 soil. The results show that low concentration can promote the growth of microbial biomass carbon in the easily stage of Zn added, but highconcentration can inhibit the growth of microbial biomass carbon. The inhibition is strengthened with increasing concentration and the critical concentration of Zn is about 200mg·kg-1. Analysis of the Biolog data by PCA indicated that microbial community structure 1 had changed, microbial has much more rapid in consuming carbon sources, and have long lasting adverse effects under the stress of Zn contamination. All these changes are correlation with soil binding capacity.Effects of Zinc on microbial biomass carbon, respiration, and community structure in rice soil were studied. Six samples were added concentrations between 50 and 500mg Zn kg-1 soil. The results show that low concentration can promote the growth of microbial biomass carbon in the easily stage of Zn added, but highconcentration can inhibit the growth of microbial biomass carbon. The inhibition is strengthened with increasing concentration and the critical concentration of Zn is about 200mg·kg-1. Analysis of the Biolog data by PCA indicated that microbial community structure 1 had changed, microbial has much more rapid in consuming carbon sources, and have long lasting adverse effects under the stress of Zn contamination. All these changes are correlation with soil binding capacity.

关 键 词：锌(Ⅱ) Zn(Ⅱ) 微生物碳 呼吸强度 时间效应 重金属污染 土壤 

分 类 号：X53[环境科学与工程—环境工程]