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Short-term effects of copper, cadmium and cypermethrin on dehydrogenase activity and microbial functional diversity in soils after long-term mineral or organic fertilization
Xie, Wenjun ; Zhou, Jianmin ; Wang, Huoyan ; Chen, Xiaoqin ; Lu, Zhaohua ; Yu, Junbao ; Chen, Xiaobing
2009
发表期刊AGRICULTURE ECOSYSTEMS & ENVIRONMENT
ISSN0167-8809
卷号129期号:4页码:450-456
产权排序Chinese Acad Sci, Inst Soil Sci;Binzhou Univ, Shandong Key Lab Ecoenvironm Sci Yellow River Del;Chinese Acad Sci, Inst Coastal Zone Res Sustainable Dev
摘要A long-term field experiment was employed to evaluate the short-term effects of Cu, Cd. cypermethrin (C) and their combinations (C + Cu and C + Cd) on soil dehydrogenase activity (DHA) and microbial functional diversity (average well color development, substrate utilization, Shannon index and evenness), as well as their differences in different fertilized soils. Three fertilization modes are arranged: wheat straw compost (OM), fertilizer NPK (NPK) and no fertilization (CK). The soil microbial activities were impacted greatly by long-term fertilization. The highest DHA and the lowest functional diversity (average well color development, Shannon index and substrate utilization with exception of carbohydrate) appeared in OM soil. The functional diversity was highest in NPK soil. DHA in Cu treatment and functional diversities in Cd, Cu + C and Cd + C treatments were significantly decreased to the greatest extent in NPK soil. The order of the influence of contaminants on soil microbes was NPK > CK > OM. Despite the slight effect of cypermethrin on functional diversity, when applied together with heavy metals, especially with Cd, the negative effect was more pronounced. In sum, long-term compost application has benefits to promote DHA and decrease bioavailability of contaminants in soil. At the same time, with the microbial community shifting, the microbial functional diversity reduces greatly. Our findings suggest that more attentions should be paid to the microbial community shifts in organic farming system. (C) 2008 Elsevier B.V. All rights reserved.
通讯作者Wang, HY, Chinese Acad Sci, Inst Soil Sci, 71 E Beijing Rd, Nanjing 210008, Jiangsu Prov, Peoples R China
关键词Carbon-source Utilization Community Structure Substrate Utilization Enzymatic-activities Bacterial Community Contaminated Soil Heavy-metals Management Degradation Patterns
作者部门滨海湿地实验室
学科领域Agriculture, Multidisciplinary ; Ecology ; Environmental Sciences
项目资助者Cooperated Program with IPNI ; National Natural Science Foundation of China [30770412]; National Key Technology R&D Program in the 11th Five-year Plan of China [2006BAC01A13]; Chinese Academy of Sciences
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收录类别sci
语种英语
文献类型期刊论文
条目标识符http://ir.yic.ac.cn/handle/133337/3410
专题滨海湿地实验室
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Xie, Wenjun,Zhou, Jianmin,Wang, Huoyan,et al. Short-term effects of copper, cadmium and cypermethrin on dehydrogenase activity and microbial functional diversity in soils after long-term mineral or organic fertilization[J]. AGRICULTURE ECOSYSTEMS & ENVIRONMENT,2009,129(4):450-456.
APA Xie, Wenjun.,Zhou, Jianmin.,Wang, Huoyan.,Chen, Xiaoqin.,Lu, Zhaohua.,...&Chen, Xiaobing.(2009).Short-term effects of copper, cadmium and cypermethrin on dehydrogenase activity and microbial functional diversity in soils after long-term mineral or organic fertilization.AGRICULTURE ECOSYSTEMS & ENVIRONMENT,129(4),450-456.
MLA Xie, Wenjun,et al."Short-term effects of copper, cadmium and cypermethrin on dehydrogenase activity and microbial functional diversity in soils after long-term mineral or organic fertilization".AGRICULTURE ECOSYSTEMS & ENVIRONMENT 129.4(2009):450-456.
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