Soil moisture and land use are major determinants of soil microbial community composition and biomass at a regional scale in northeastern China

doi:10.5194/bg-12-2585-2015

	Soil moisture and land use are major determinants of soil microbial community composition and biomass at a regional scale in northeastern China
	Ma, L.; Guo, C.; Lu, X.; Yuan, S.; Wang, R.
	2015
发表期刊	BIOGEOSCIENCES
ISSN	1726-4170
卷号	12 期号:8 页码:2585-2596
摘要	Global environmental factors impact soil microbial communities and further affect organic matter decomposition, nutrient cycling and vegetation dynamic. However, little is known about the relative contributions of climate factors, soil properties, vegetation types, land management practices and spatial structure (which serves as a proxy for underlying effects of temperature and precipitation for spatial variation) on soil microbial community composition and biomass at large spatial scales. Here, we compared soil microbial communities using phospholipid fatty acid method across 7 land use types from 23 locations at a regional scale in northeastern China (850 x 50 km). The results showed that soil moisture and land use changes were most closely related to microbial community composition and biomass at the regional scale, while soil total C content and climate effects were weaker but still significant. Factors such as spatial structure, soil texture, nutrient availability and vegetation types were not important. Higher contributions of gram-positive bacteria were found in wetter soils, whereas higher contributions of gram-negative bacteria and fungi were observed in drier soils. The contributions of gram-negative bacteria and fungi were lower in heavily disturbed soils than historically disturbed and undisturbed soils. The lowest microbial biomass appeared in the wettest and driest soils. In conclusion, dominant climate and soil properties were not the most important drivers governing microbial community composition and biomass because of inclusion of irrigated and managed practices, and thus soil moisture and land use appear to be primary determinants of microbial community composition and biomass at the regional scale in northeastern China.
学科领域	Ecology ; Geosciences, Multidisciplinary
DOI	10.5194/bg-12-2585-2015
收录类别	SCI
语种	英语
WOS关键词	FATTY-ACID PROFILES ; DIVERSITY ; CARBON ; PRECIPITATION ; RESPONSES ; BACTERIAL ; DYNAMICS ; TRANSECT ; TILLAGE ; VARIABILITY
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000353840500020
出版者	COPERNICUS GESELLSCHAFT MBH
文献子类	Article
出版地	GOTTINGEN
EISSN	1726-4189
资助机构	Natural Science Foundation of China [31170304, 31070228, 31300440]
作者邮箱	wangrz@ibcas.ac.cn
作品OA属性	gold, Green Submitted
引用统计	被引频次：61[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/25726
专题	植被与环境变化国家重点实验室
作者单位	1.[Ma, L. 2.Guo, C. 3.Yuan, S. 4.Wang, R.] Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 5.[Yuan, S.] Univ Chinese Acad Sci, Beijing 100049, Peoples R China 6.[Lu, X.] Chinese Acad Sci, Inst Appl Ecol, State Key Lab Forest & Soil Ecol, Shenyang 110164, Peoples R China
推荐引用方式 GB/T 7714	Ma, L.,Guo, C.,Lu, X.,et al. Soil moisture and land use are major determinants of soil microbial community composition and biomass at a regional scale in northeastern China[J]. BIOGEOSCIENCES,2015,12(8):2585-2596.
APA	Ma, L.,Guo, C.,Lu, X.,Yuan, S.,&Wang, R..(2015).Soil moisture and land use are major determinants of soil microbial community composition and biomass at a regional scale in northeastern China.BIOGEOSCIENCES,12(8),2585-2596.
MLA	Ma, L.,et al."Soil moisture and land use are major determinants of soil microbial community composition and biomass at a regional scale in northeastern China".BIOGEOSCIENCES 12.8(2015):2585-2596.

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