干旱区生态环境知识资源中心(Arid): Observational and experimental evidence for the effect of altered precipitation on desert and steppe communities

Arid

DOI	10.1016/j.gecco.2019.e00864
	Observational and experimental evidence for the effect of altered precipitation on desert and steppe communities
	Zuo, Xiaoan 1,2; Cheng, Huan 3; Zhao, Shenglong 1; Yue, Ping 1; Liu, Xinping 2; Wang, Shaokun 1; Liu, Lianxu 1; Xu, Chong 4; Luo, Wentao 5; Knops, J. M. H.6; Medina-Roldan, Eduardo 6
通讯作者	Zuo, Xiaoan ; Knops, J. M. H.
来源期刊	GLOBAL ECOLOGY AND CONSERVATION
ISSN	2351-9894
出版年	2020
卷号	21
英文摘要	Changes in precipitation pattern are likely to affect the community structure and ecosystem function in drylands. Observational and experimental studies can provide insight into how plant community in desert and grassland ecosystems responds to precipitation changes, however, the studies combining both approaches are rare. Here, we reported the results of altered precipitation effects on desert-shrub community and steppe-grass community from both a natual precipitation gradient and an experiment manipulating precipitation in Inner Mongolia, northern China. We found that precipitation changes along the natural gradient could well explain species richness and aboveground plant biomass (AGB), inducing their positive relationships in shrub- or grass-dominated community. In the manipulative experiment, 40% and 60% increased precipitation increased species richness and Shannon's diversity in grass-dominated community, and 60% increased precipitation increased AGB in grass-dominated community, while 60% reduced precipitation decreased plant density and AGB in shrub and grass-dominated communities. Species richness, Shannon's diversity, plant density and AGB were positively related to increased precipitation in the manipulative experiment. The positive relationship between species richness and AGB in the grass-dominated community could be shaped by the manipulative precipitation gradient, but no significant relationship was found in the shrub-dominated community in the experiment. Our study highlights that species richness and AGB in desert and steppe community consistently respond to altered precipitation along the natural gradient and in experiment. Extreme drought or high precipitation-induced shifts of the composition and production of herbaceous plants in the shrub-dominated community can contribute to shape the positive associations of community structure and function with precipitation changes. The high vulnerability of grass-dominated community in response to precipitation extremes presents a great challenge to effectively manage steppe ecosystem in future repaid climate changes. (C) 2019 The Authors. Published by Elsevier B.V.
英文关键词	Community structure Ecosystem function Extreme climate event Species diversity Precipitation pattern
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000517814100059
WOS关键词	DIVERSITY-PRODUCTIVITY RELATIONSHIP ; SHRUBLAND STATE TRANSITIONS ; EXTREME DROUGHT ; WATER AVAILABILITY ; SPECIES RICHNESS ; INNER-MONGOLIA ; CHIHUAHUAN DESERT ; PLANT-COMMUNITIES ; GRASSLAND ; GRADIENT
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构	兰州大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/314649
作者单位	1.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Urat Desert Grassland Res Stn, Lanzhou 730000, Peoples R China; 2.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Naiman Desertificat Res Stn, Lanzhou 730000, Peoples R China; 3.Sichuan Agr Univ, Coll Forestry, Chengdu 611130, Peoples R China; 4.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, State Key Lab Grassland Agroecosyst, Lanzhou 730020, Gansu, Peoples R China; 5.Chinese Acad Sci, Inst Appl Ecol, Shenyang 110164, Peoples R China; 6.Xian Jiaotong Liverpool Univ, Hlth & Environm Sci, Suzhou 215123, Peoples R China
推荐引用方式 GB/T 7714	Zuo, Xiaoan,Cheng, Huan,Zhao, Shenglong,et al. Observational and experimental evidence for the effect of altered precipitation on desert and steppe communities[J]. 兰州大学,2020,21.
APA	Zuo, Xiaoan.,Cheng, Huan.,Zhao, Shenglong.,Yue, Ping.,Liu, Xinping.,...&Medina-Roldan, Eduardo.(2020).Observational and experimental evidence for the effect of altered precipitation on desert and steppe communities.GLOBAL ECOLOGY AND CONSERVATION,21.
MLA	Zuo, Xiaoan,et al."Observational and experimental evidence for the effect of altered precipitation on desert and steppe communities".GLOBAL ECOLOGY AND CONSERVATION 21(2020).