干旱区生态环境知识资源中心(Arid): Global soil microbial biomass decreases with aridity and land-use intensification

Arid

DOI	10.1111/geb.13282
	Global soil microbial biomass decreases with aridity and land-use intensification
	Wan, Xiaohua; Chen, Xinli; Huang, Zhiqun; Chen, Han Y. H.
通讯作者	Huang, ZQ (corresponding author), Fujian Normal Univ, Minist Educ, Key Lab Humid Subtrop Ecogeog Proc, Fuzhou 350007, Peoples R China.
来源期刊	GLOBAL ECOLOGY AND BIOGEOGRAPHY
ISSN	1466-822X
EISSN	1466-8238
出版年	2021
卷号	30 期号:5 页码:1056-1069
英文摘要	Aim Although global patterns are emerging for the soil total microbial biomass pool, our understanding of the distribution of the finer groups, especially bacterial and fungal biomass, remains limited. Moreover, we lack mechanistic insights into the global variation of soil microbial biomass. Location Global terrestrial ecosystems. Time period 1990-2019. Major taxa studied Bacteria and fungi. Methods By conducting a global synthesis of 4,472 observations from 577 sites published in 404 studies, we examined the global patterns and drivers of the soil total microbial biomass, bacterial and fungal biomass and fungi-to-bacteria ratio. Results We found that soil total microbial, bacterial and fungal biomass peaked concurrently in tundras, with lower values in deserts, and that intensification of land use reduced soil total microbial, bacterial and fungal biomass and the fungi-to-bacteria biomass ratio. Soil organic carbon was the most important driver for global distribution patterns of both bacterial and fungal biomass. Our structural equation models indicated that soil bacterial and fungal biomass increased with water availability through its positive effect on soil organic carbon on a global scale. In contrast, soil total, bacterial and fungal biomass decreased with mean annual temperature and intensification of land use via their negative effects on soil organic carbon. Main conclusions Our results suggest that decreasing water availability and land-use intensification could reduce soil microbial biomass and the relative abundance of soil fungi to bacteria, impairing their functions and the services they provide.
英文关键词	fungi bacteria ratio global warming land‐ use change phospholipid fatty acids soil C N ratio water availability
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000626767900001
WOS类目	Ecology ; Geography, Physical
WOS研究方向	Environmental Sciences & Ecology ; Physical Geography
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350446
作者单位	[Wan, Xiaohua; Huang, Zhiqun; Chen, Han Y. H.] Fujian Normal Univ, Minist Educ, Key Lab Humid Subtrop Ecogeog Proc, Fuzhou 350007, Peoples R China; [Wan, Xiaohua; Huang, Zhiqun; Chen, Han Y. H.] Fujian Normal Univ, Sch Geog Sci, Fuzhou, Peoples R China; [Chen, Xinli; Chen, Han Y. H.] Lakehead Univ, Fac Nat Resources Management, Thunder Bay, ON, Canada
推荐引用方式 GB/T 7714	Wan, Xiaohua,Chen, Xinli,Huang, Zhiqun,et al. Global soil microbial biomass decreases with aridity and land-use intensification[J],2021,30(5):1056-1069.
APA	Wan, Xiaohua,Chen, Xinli,Huang, Zhiqun,&Chen, Han Y. H..(2021).Global soil microbial biomass decreases with aridity and land-use intensification.GLOBAL ECOLOGY AND BIOGEOGRAPHY,30(5),1056-1069.
MLA	Wan, Xiaohua,et al."Global soil microbial biomass decreases with aridity and land-use intensification".GLOBAL ECOLOGY AND BIOGEOGRAPHY 30.5(2021):1056-1069.