干旱区生态环境知识资源中心(Arid): More drought leads to a greater significance of biocrusts to soil multifunctionality

Arid

DOI	10.1111/1365-2435.13761
	More drought leads to a greater significance of biocrusts to soil multifunctionality
	Su, Yan-gui; Liu, Jie; Zhang, Yuan-ming; Huang, Gang
通讯作者	Huang, G (corresponding author), Fujian Normal Univ, Sch Geog Sci, Key Lab Subtrop Mt Ecol, Fuzhou, Fujian, Peoples R China. ; Zhang, YM (corresponding author), Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Key Lab Biogeog & Bioresource Arid Land, Urumqi, Xinjiang, Peoples R China. ; Huang, G (corresponding author), 8 Shangshan Rd, Fuzhou 350007, Fujian, Peoples R China.
来源期刊	FUNCTIONAL ECOLOGY
ISSN	0269-8463
EISSN	1365-2435
出版年	2021
卷号	35 期号:4 页码:989-1000
英文摘要	1. Soil biocrusts, as the fundamental component of drylands, alter soil microbial and plant community compositions, thus profoundly affecting soil multifunctionality (SMF). Biocrust development regulates microbial composition and eco-physiological effects, but there have been limited assessments regarding how biocrust development impacts SMF through microbial communities and plant species. 2. We investigated the geographical patterns of plant diversity, soil bacterial diversity, biocrust development and SMF along an aridity gradient, spanning 2,200 km in northern China, and evaluated how biocrust development modulated multiple soil functions related to carbon, nitrogen and phosphorus cycles. 3. Plant species richness and SMF decreased linearly with increasing aridity (1-AI), but the relationship of soil bacterial diversity and biocrust development index (BSCDI) with aridity differed between arid region and semi-arid region. 4. Plant diversity and soil bacterial diversity increased linearly with BSCDI in arid regions, but decreased linearly with BSCDI in semi-arid regions. 5. Both plant species and soil bacterial diversity exerted positive effects on SMF in arid regions, but soil bacterial diversity, rather than plant species, did not explain any variation in SMF in semi-arid regions. Most importantly, biocrust development exerted direct effects on SMF in arid regions, but only indirect effects through changing soil microbial biomass carbon in semi-arid regions. 6. Our findings suggest that the effects and influencing pathways of biocrusts on SMF are different between arid and semi-arid regions, these results give a comprehensive view of how biocrust development facilitates soil multifunctionality improvement and ultimately promotes a deeper understanding of the dependence of biodiversity-SMF relationship on aridity. A free Plain Language Summary can be found within the Supporting Information of this article.
英文关键词	aridity biocrusts biodiversity drylands soil multifunctionality
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000627012600001
WOS类目	Ecology
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院新疆生态与地理研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/350345
作者单位	[Su, Yan-gui; Huang, Gang] Fujian Normal Univ, Sch Geog Sci, Key Lab Subtrop Mt Ecol, Fuzhou, Fujian, Peoples R China; [Liu, Jie; Zhang, Yuan-ming] Chinese Acad Sci, Xinjiang Inst Ecol & Geog, Key Lab Biogeog & Bioresource Arid Land, Urumqi, Xinjiang, Peoples R China; [Huang, Gang] 8 Shangshan Rd, Fuzhou 350007, Fujian, Peoples R China
推荐引用方式 GB/T 7714	Su, Yan-gui,Liu, Jie,Zhang, Yuan-ming,et al. More drought leads to a greater significance of biocrusts to soil multifunctionality[J]. 中国科学院新疆生态与地理研究所,2021,35(4):989-1000.
APA	Su, Yan-gui,Liu, Jie,Zhang, Yuan-ming,&Huang, Gang.(2021).More drought leads to a greater significance of biocrusts to soil multifunctionality.FUNCTIONAL ECOLOGY,35(4),989-1000.
MLA	Su, Yan-gui,et al."More drought leads to a greater significance of biocrusts to soil multifunctionality".FUNCTIONAL ECOLOGY 35.4(2021):989-1000.