干旱区生态环境知识资源中心(Arid): Changes in levels of enzymes and osmotic adjustment compounds in key species and their relevance to vegetation succession in abandoned croplands of a semiarid sandy region

Arid

DOI	10.1002/ece3.6067
	Changes in levels of enzymes and osmotic adjustment compounds in key species and their relevance to vegetation succession in abandoned croplands of a semiarid sandy region
	Yang, Liu 1,2; Lai, Liming 1; Zhou, Jihua 1; Li, Qiaoyan 1,2; Yi, Sangui 1,2; Sun, Qinglin 1,2; Zheng, Yuanrun 1
通讯作者	Zheng, Yuanrun
来源期刊	ECOLOGY AND EVOLUTION
ISSN	2045-7758
出版年	2020
卷号	10 期号:4 页码:2269-2280
英文摘要	Reclamation of cropland from grassland is regarded as a main reason for grassland degradation; understanding succession from abandoned cropland to grassland is thus crucial for vegetation restoration in arid and semiarid areas. Soil becomes dry when cropland is reverted to grassland, and enzyme and osmotic adjustment compounds may help plants to adapt to a drying environment. Croplands that were abandoned in various years on the Ordos Plateau in China, were selected for the analysis of the dynamics of enzymes and osmotic adjustment compounds in plant species during vegetation succession. With increasing number of years since abandonment, levels of superoxide dismutase increased in Stipa bungeana, first decreased and then increased in Lespedeza davurica and Artemisia frigida, and fluctuated in Heteropappus altaicus. Levels of peroxidase and catalase in the four species fluctuated; levels of proline, soluble sugar, and soluble protein either decreased or first increased and then generally decreased. According to a drought resistance index, the drought resistance of the four species was ranked in descending order as follows: S. bungeana > A. frigida > H. altaicus > L. davurica. The drought resistance ability of the different species was closely linked with vegetation succession from communities dominated by annual and biennial species (with main accompanying species of L. davurica and H. altaicus) to communities dominated by perennial species (S. bungeana and A. frigida) when soil became dry owing to increasing evapotranspiration after cropland abandonment. The restoration of S. bungeana steppe after cropland abandonment on the Ordos Plateau is recommended both as high-quality forage and for environmental sustainability.
英文关键词	community succession comprehensive drought evaluation drought resistance Ordos Plateau
类型	Article
语种	英语
国家	Peoples R China
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000510573800001
WOS关键词	SHRUB ENCROACHMENT ; WATER-STRESS ; GRASSLANDS ; ACCUMULATION ; TOLERANCE ; RESPONSES ; SEEDLINGS ; PROLINE
WOS类目	Ecology ; Evolutionary Biology
WOS研究方向	Environmental Sciences & Ecology ; Evolutionary Biology
EI主题词	2020-02-03
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/312807
作者单位	1.Chinese Acad Sci, Inst Bot, West China Subalpine Bot Garden, Key Lab Resource Plants, 20 Nanxincun, Beijing 100093, Peoples R China; 2.Univ Chinese Acad Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Yang, Liu,Lai, Liming,Zhou, Jihua,et al. Changes in levels of enzymes and osmotic adjustment compounds in key species and their relevance to vegetation succession in abandoned croplands of a semiarid sandy region[J],2020,10(4):2269-2280.
APA	Yang, Liu.,Lai, Liming.,Zhou, Jihua.,Li, Qiaoyan.,Yi, Sangui.,...&Zheng, Yuanrun.(2020).Changes in levels of enzymes and osmotic adjustment compounds in key species and their relevance to vegetation succession in abandoned croplands of a semiarid sandy region.ECOLOGY AND EVOLUTION,10(4),2269-2280.
MLA	Yang, Liu,et al."Changes in levels of enzymes and osmotic adjustment compounds in key species and their relevance to vegetation succession in abandoned croplands of a semiarid sandy region".ECOLOGY AND EVOLUTION 10.4(2020):2269-2280.