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Effects of elevated CO2 and drought on the microbial biomass and enzymatic activities in the rhizospheres of two grass species in Chinese loess soil

文献类型：期刊论文

作者Yang, XM (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.; Yang, XM (reprint author), Minist Educ, Yangling 712100, Shaanxi, Peoples R China.; Xue, Sha1,2; Yang, Xiaomei2,3; Liu, Guobin1,2; Gai, Lingtong2,3; Zhang, Changsheng1,2; Ritsema, Coen J.4; Geissen, Violette4
刊名GEODERMA
出版日期2017
卷号286页码:25-34
关键词Elevated Atmospheric Co2 Drought Stress Rhizospheric Soil Microbial Biomass Enzymatic Activities Interactive Effect
ISSN号0016-7061
DOI10.1016/j.geoderma.2016.10.025
文献子类Article
英文摘要Elevated CO2 and drought are key consequences of climate change and affect soil processes and plant growth. This study investigated the effects of elevated CO2 and drought on the microbial biomass and enzymatic activities in the rhizospheres of Bothriochloa ischaemum and Medicago sativa in loess soil. Drought exerted significant species -specific negative effects on root and shoot biomass and microbial properties except for the soil basal respiration in the rhizospheres of B. ischaemum and M. sativa. Increased CO2 exerted weak effects on plant biomass and enzymatic activities but demonstrated significant effects on the amounts of carbon and nitrogen in soil microbial biomass, basal respiration, substrate-induced respiration, and the metabolic quotients in the rhizospheres of M sativa and B. ischaemum. The rhizosphere soil microbial index was a good aggregative indicator of the general state of the microbial properties of the rhizospheres. The interactive effects of elevated CO2 and drought on plant growth and microbial properties significantly differed, indicating that elevated CO2 significantly alleviated the effects of drought stress on the microbial properties of the rhizosphere. In addition, the effects of elevated CO2 and drought on microbial biomass and enzymatic activities considerably varied between the two selected species. M. sativa generally experienced a better ameliorative effect than B. ischaemum. (C) 2016 Elsevier B.V. All rights reserved.
学科主题Agriculture
URL标识查看原文
出版地AMSTERDAM
语种英语
WOS记录号WOS:000389107000004
出版者ELSEVIER SCIENCE BV
资助机构Foundation for Western Young Scholars, Chinese Academy of Sciences [XAB2015A05]; Natural Science Foundation of China [41371510, 41371508, 41471438]; Science and Technology Research and Development Program of Shaanxi Province, China [2011KJXX63] ; Foundation for Western Young Scholars, Chinese Academy of Sciences [XAB2015A05]; Natural Science Foundation of China [41371510, 41371508, 41471438]; Science and Technology Research and Development Program of Shaanxi Province, China [2011KJXX63] ; Foundation for Western Young Scholars, Chinese Academy of Sciences [XAB2015A05]; Natural Science Foundation of China [41371510, 41371508, 41471438]; Science and Technology Research and Development Program of Shaanxi Province, China [2011KJXX63] ; Foundation for Western Young Scholars, Chinese Academy of Sciences [XAB2015A05]; Natural Science Foundation of China [41371510, 41371508, 41471438]; Science and Technology Research and Development Program of Shaanxi Province, China [2011KJXX63]
源URL[http://ir.iswc.ac.cn/handle/361005/8053]  
专题水保所科研产出--SCI_2017--SCI
通讯作者Yang, XM (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China.; Yang, XM (reprint author), Minist Educ, Yangling 712100, Shaanxi, Peoples R China.
作者单位1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
3.Minist Educ, Yangling 712100, Shaanxi, Peoples R China
4.Wageningen Univ, Soil Phys & Land Management, POB 47, NL-6708 AA Wageningen, Netherlands
推荐引用方式
GB/T 7714		 Yang, XM ,Yang, XM ,Xue, Sha,et al. Effects of elevated CO2 and drought on the microbial biomass and enzymatic activities in the rhizospheres of two grass species in Chinese loess soil[J]. GEODERMA,2017,286:25-34.
APA Yang, XM .,Yang, XM .,Xue, Sha.,Yang, Xiaomei.,Liu, Guobin.,...&Geissen, Violette.(2017).Effects of elevated CO2 and drought on the microbial biomass and enzymatic activities in the rhizospheres of two grass species in Chinese loess soil.GEODERMA,286,25-34.
MLA Yang, XM ,et al."Effects of elevated CO2 and drought on the microbial biomass and enzymatic activities in the rhizospheres of two grass species in Chinese loess soil".GEODERMA 286(2017):25-34.

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