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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

文献类型：期刊论文

作者Yang, Liu1; Lai, Liming; Zhou, Jihua; Li, Qiaoyan1; Yi, Sangui1; Sun, Qinglin1; Zheng, Yuanrun
刊名ECOLOGY AND EVOLUTION
出版日期2020
卷号10期号:4页码:2269-2280
关键词community succession comprehensive drought evaluation drought resistance Ordos Plateau
ISSN号2045-7758
DOI10.1002/ece3.6067
文献子类Article
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.
学科主题Ecology ; Evolutionary Biology
出版地HOBOKEN
WOS关键词SHRUB ENCROACHMENT ; WATER-STRESS ; GRASSLANDS ; ACCUMULATION ; TOLERANCE ; RESPONSES ; SEEDLINGS ; PROLINE
WOS研究方向Environmental Sciences & Ecology ; Evolutionary Biology
语种英语
WOS记录号WOS:000510573800001
出版者WILEY
资助机构National Natural Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41330749]
源URL[http://ir.ibcas.ac.cn/handle/2S10CLM1/21936]  
专题中科院北方资源植物重点实验室
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]. ECOLOGY AND EVOLUTION,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.

入库方式： OAI收割

来源：植物研究所

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