干旱区生态环境知识资源中心(Arid): Seasonal Patterns of Soil Respiration in Three Types of Communities along Grass-Desert Shrub Transition in Inner Mongolia, China

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	Seasonal Patterns of Soil Respiration in Three Types of Communities along Grass-Desert Shrub Transition in Inner Mongolia, China
	JIN Zhao; QI Yuchun; DONG Yunshe; Manfred DOMROES
来源期刊	Advances in Atmospheric Sciences
ISSN	0256-1530
出版年	2009
卷号	26 期号:3 页码:503-512
英文摘要	The seasonal dynamics of soil respiration in steppe (S. Bungeana), desert shrub (A. Ordosica), and shrubperennial (A. Ordosica +C. Komarovii) communities were investigated during the growth season (May to October) in 2006; their environmental driving factors were also analyzed. In the three communities, soil respiration showed similar characteristics in thcir growth seasons, with peak respiration values in July and August owing to suitable temperature and soil moisture conditions during this period. Meanwhile, changes in soil respiration were greatly influenced by temperatures and surface soil moistures. Soil water content at a depth of 0 to 10 cm was identified as the key environmental factor affecting the variation in soil respiration in the steppe. In contrast, in desert shrub and shrub-perennial communities, the dynamics of soil respiration was significantly influenced by air temperature. Similarly, the various responses of soil respiration to environmental factors may be attributed to the different soil textures and distribution patterns of plant roots. In desert ecosystems, precipitation results in soil respiration pulses. Soil carbon dioxide (CO_2) effluxes greatly increased after rainfall rewetting in all of the ecosystems under study. However, the precipitation pulse effect differed across the ecosystem. We propose that this may be a result of a reverse effect from the soil texture.
英文关键词	soil respiration grass-desert shrub transition Stipa bungeana Artemisia ordosica Artemisia ordosica+Cynanchum komarovii Ordos Plateau
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Meteorology & Atmospheric Sciences
CSCD记录号	CSCD:3751095
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335027
作者单位	JIN Zhao, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.; QI Yuchun, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.; DONG Yunshe, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China.; Manfred DOMROES, Institute of Geography, Mainz University, Mainz, Rhineland-Palatinate 55099, Germany.
推荐引用方式 GB/T 7714	JIN Zhao,QI Yuchun,DONG Yunshe,et al. Seasonal Patterns of Soil Respiration in Three Types of Communities along Grass-Desert Shrub Transition in Inner Mongolia, China[J],2009,26(3):503-512.
APA	JIN Zhao,QI Yuchun,DONG Yunshe,&Manfred DOMROES.(2009).Seasonal Patterns of Soil Respiration in Three Types of Communities along Grass-Desert Shrub Transition in Inner Mongolia, China.Advances in Atmospheric Sciences,26(3),503-512.
MLA	JIN Zhao,et al."Seasonal Patterns of Soil Respiration in Three Types of Communities along Grass-Desert Shrub Transition in Inner Mongolia, China".Advances in Atmospheric Sciences 26.3(2009):503-512.