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Effect of grazing exclusion on ecosystem respiration among three different alpine grasslands on the central Tibetan Plateau
Zhao, JX (Zhao, Jingxue)1,2; Li, X (Li, Xiang)1; Li, RC (Li, Ruicheng)2; Tian, LH (Tian, Lihua)3; Zhang, T (Zhang, Tao)4; Zhao, JX
Source PublicationECOLOGICAL ENGINEERING
2016
Volume94Issue:0Pages:599-607
DOI10.1016/j.ecoleng.2016.06.112
AbstractAlpine grasslands are currently experiencing an increasing threat from overgrazing, and grazing exclusion has been widely used as a simple and effective method for restoring degraded grasslands on the Tibetan Plateau (TP). This paper studied effects of grazing exclusion on ecosystem respiration (Re), plant and soil characteristics for two growing season (2012 and 2013) in three alpine grasslands (alpine steppe, alpine meadow and swamp meadow) on the central TP. Grazing exclusion enhanced plant height, total cover, aboveground biomass and belowground biomass in all the three alpine grasslands. Grazing exclusion increased Re in alpine steppe and alpine meadow, but decreased Re in swamp meadow. Soil temperature and soil moisture well explained the seasonal variations of Re in alpine steppe and alpine meadow. However, soil temperature, rather than soil moisture, was the major environment factor controlling the seasonal variation of Re in swamp meadows. The temperature sensitivity of Re (Q(10)) was higher in swamp meadow and alpine meadow compared with alpine steppe. Grazing exclusion had a slight tendency to decrease Q(10) in alpine steppe and alpine meadow, but increase Q(10) in swamp meadows. Results suggest that grazing exclusion effects on Re and Q(10) of alpine grassland were determined by vegetation types. (C) 2016 Elsevier B.V. All rights reserved.
Subject Area普通生物学
WOS IDWOS:000381636400065
Language英语
Indexed BySCI
KeywordSoil Co2 Efflux Large Altitudinal Gradient Temperature Sensitivity Carbon-dioxide Climate-change Loess Plateau China Meadow Forest q(10)
Cooperation Status国内
Department生态
SubtypeArticle
Citation statistics
Document Type期刊论文
Identifierhttp://ir.itpcas.ac.cn/handle/131C11/7618
Collection图书馆
Corresponding AuthorZhao, JX
Affiliation1.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Bldg 3,16 Lin Cui Rd, Beijing 100101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Southwest Univ Nationalities, Inst Qinghai Tibetan Plateau, Chengdu 610041, Peoples R China
4.Lanzhou Univ, Coll Pastoral Agr Sci & Technol, Lanzhou 730000, Peoples R China
Recommended Citation
GB/T 7714
Zhao, JX ,Li, X ,Li, RC ,et al. Effect of grazing exclusion on ecosystem respiration among three different alpine grasslands on the central Tibetan Plateau[J]. ECOLOGICAL ENGINEERING,2016,94(0):599-607.
APA Zhao, JX ,Li, X ,Li, RC ,Tian, LH ,Zhang, T ,&Zhao, JX.(2016).Effect of grazing exclusion on ecosystem respiration among three different alpine grasslands on the central Tibetan Plateau.ECOLOGICAL ENGINEERING,94(0),599-607.
MLA Zhao, JX ,et al."Effect of grazing exclusion on ecosystem respiration among three different alpine grasslands on the central Tibetan Plateau".ECOLOGICAL ENGINEERING 94.0(2016):599-607.
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