干旱区生态环境知识资源中心(Arid): A nurse shrub species helps associated herbaceous plants by preventing shade-induced evaporation in a desert ecosystem

Arid

DOI	10.1002/ldr.3831
	A nurse shrub species helps associated herbaceous plants by preventing shade-induced evaporation in a desert ecosystem
	Liu, Liang; Bai, Yuxuan; She, Weiwei; Qiao, Yangui; Qin, Shugao; Zhang, Yuqing
通讯作者	Zhang, YQ
来源期刊	LAND DEGRADATION & DEVELOPMENT
ISSN	1085-3278
EISSN	1099-145X
英文摘要	Xeric shrubs often play an important role in reversing desertification and promoting ecological restoration of degraded dryland ecosystems. However, how shrubs affect their associated herbaceous species and environmental conditions remains largely unknown. In this study, we conducted a removal experiment along with stable isotope analysis to determine the water use strategy of a shrub species (Artemisia ordosica) and its associated perennial graminoids (PG) in the Mu Us Desert, northern China. We observed that in the intact plots, both shrubs and PG predominantly utilized water from the shallow soil layer (0-20 cm, 54.36%, and 63.63%, respectively). Compared to this, when shrubs were removed, soil water content decreased, the main water source of PG switched to the middle soil layer (20-60 cm, 48.25%), and their water use efficiency (WUE) increased. However, the removal of PG had no significant impacts on the soil water content in any layer or on the water source of shrubs but for slightly decreased WUE. We highlighted that rather than hydraulic lift, shade-induced evaporation decline is the primary mechanism by which shrubs facilitate the growth of associated herbaceous plants in desert ecosystems, indicating that the facilitated herbaceous plants have more flexible water use strategies than shrubs, which probably drives the community succession from being shrub-dominated to herb-dominated.
英文关键词	Artemisia ordosica ecological restoration Mu Us Desert water source water use efficiency
类型	Review ; Early Access
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000594394500001
WOS关键词	WATER-USE EFFICIENCY ; SOIL-WATER ; STABLE-ISOTOPE ; HYDRAULIC LIFT ; SUMMER PRECIPITATION ; ELEVATION GRADIENTS ; ARTEMISIA-ORDOSICA ; PREFERENTIAL FLOW ; CHIHUAHUAN DESERT ; INNER-MONGOLIA
WOS类目	Environmental Sciences ; Soil Science
WOS研究方向	Environmental Sciences & Ecology ; Agriculture
来源机构	北京林业大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/328558
作者单位	[Liu, Liang; Bai, Yuxuan; She, Weiwei; Qiao, Yangui; Qin, Shugao; Zhang, Yuqing] Beijing Forestry Univ, Sch Soil & Water Conservat, Yanchi Res Stn, Beijing 100083, Peoples R China; [Qin, Shugao] Beijing Forestry Univ, Minist Educ, Engn Res Ctr Forestry Ecol Engn, Beijing, Peoples R China; [She, Weiwei; Zhang, Yuqing] Beijing Forestry Univ, Key Lab State Forestry Adm Soil & Water Conservat, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Liu, Liang,Bai, Yuxuan,She, Weiwei,et al. A nurse shrub species helps associated herbaceous plants by preventing shade-induced evaporation in a desert ecosystem[J]. 北京林业大学.
APA	Liu, Liang,Bai, Yuxuan,She, Weiwei,Qiao, Yangui,Qin, Shugao,&Zhang, Yuqing.
MLA	Liu, Liang,et al."A nurse shrub species helps associated herbaceous plants by preventing shade-induced evaporation in a desert ecosystem".LAND DEGRADATION & DEVELOPMENT