干旱区生态环境知识资源中心(Arid): Adaptive traits of three dominant desert-steppe species under grazing-related degradation: Morphology, structure, and function

Arid

DOI	10.1016/j.gecco.2021.e01647
	Adaptive traits of three dominant desert-steppe species under grazing-related degradation: Morphology, structure, and function
	Song, Yifan; Liu, Tiejun; Han, Xiufeng; Lu, Yajing; Xu, Xiaomin; Wang, Lixin; Liao, Zilong; Dong, Zhi; Jiao, Rui; Liang, Wentao; Liu, Hualin
通讯作者	Liu, TJ (corresponding author), China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing 100044, Peoples R China.
来源期刊	GLOBAL ECOLOGY AND CONSERVATION
ISSN	2351-9894
出版年	2021
卷号	28
英文摘要	Understanding the adaptative behaviors of dominant desert-steppe species under varying levels of grazing-related environmental degradation is an important step in elucidating the survival strategies and environmental response mechanisms of desert plants. In this study, the Xilamuren desert steppe in Northwest China was used as a case study location to systematically investigate the adaptative traits of three dominant plant species (Stipa breviflora, Cleistogenes squarrosa, and Convolvulus ammannii) from the perspectives of plant morphology, leaf structure, and photosynthesis. As degradation intensified, the adaptive changes in the three dominant plant species manifested in the following ways: 1) adjustment of substance allocation strategy, such that biomass was preferentially concentrated in the leaves and roots for photosynthesis and resource acquisition; 2) miniaturization, including reduced plant height, reduced leaf size, and leaf narrowing; 3) thickening of the leaves, epidermis, and cuticle to increase water storage and resist illumination and temperature elevation and thickening of the midrib veins to increase water and nutrient transportation; and 4) increased water-use efficiency in Stipa breviflora, which showed a stronger capacity to adjust to water stress than Cleistogenes squarrosa and Convolvulus ammannii. The results suggested that the morphological, structural, and functional adjustments of desert plants were related to the development of drought-resistance mechanisms through water-use strategies, including increased water absorption and water-use efficiency and decreased water consumption. These results enrich the existing knowledge of the environmental adaptation mechanisms of dominant plants in desert steppes, providing a scientific basis for the restoration of desert steppe ecologies and the formulation of suitable grazing policies. (c) 2021 The Author(s). Published by Elsevier B.V. CC_BY_NC_ND_4.0
英文关键词	Degradation Adaptation Grazing Desert steppe Dominant species
类型	Article
语种	英语
开放获取类型	gold
收录类别	SCI-E
WOS记录号	WOS:000684528400012
WOS关键词	INNER-MONGOLIA ; SOIL PROPERTIES ; VEGETATION DYNAMICS ; LEYMUS-CHINENSIS ; PLANT COMMUNITY ; LOESS PLATEAU ; WATER-USE ; GRASSLAND ; LEAF ; RESTORATION
WOS类目	Biodiversity Conservation ; Ecology
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363467
作者单位	[Song, Yifan; Liu, Tiejun; Xu, Xiaomin; Liao, Zilong; Jiao, Rui; Liang, Wentao; Liu, Hualin] China Inst Water Resources & Hydropower Res, State Key Lab Simulat & Regulat Water Cycle River, Beijing 100044, Peoples R China; [Song, Yifan] Yellow River Engn Consulting Co Ltd, Postdoctoral Program, Zhengzhou 450003, Peoples R China; [Liu, Tiejun; Wang, Lixin] Minist Educ China & Inner Mongolia Autonomous Reg, Collaborat Innovat Ctr Grassland Ecol Secur, Hohhot 010021, Peoples R China; [Han, Xiufeng; Dong, Zhi] Shandong Agr Univ, Forestry Coll, Jinan 271018, Peoples R China; [Lu, Yajing] Beijing Water Sci & Technol Inst, Beijing 100048, Peoples R China; [Wang, Lixin] Inner Mongolia Univ, Coll Ecol & Environm, Hohhot 010021, Peoples R China
推荐引用方式 GB/T 7714	Song, Yifan,Liu, Tiejun,Han, Xiufeng,et al. Adaptive traits of three dominant desert-steppe species under grazing-related degradation: Morphology, structure, and function[J],2021,28.
APA	Song, Yifan.,Liu, Tiejun.,Han, Xiufeng.,Lu, Yajing.,Xu, Xiaomin.,...&Liu, Hualin.(2021).Adaptive traits of three dominant desert-steppe species under grazing-related degradation: Morphology, structure, and function.GLOBAL ECOLOGY AND CONSERVATION,28.
MLA	Song, Yifan,et al."Adaptive traits of three dominant desert-steppe species under grazing-related degradation: Morphology, structure, and function".GLOBAL ECOLOGY AND CONSERVATION 28(2021).