干旱区生态环境知识资源中心(Arid): Can soil respiration estimate neglect the contribution of abiotic exchange?

Arid

	Can soil respiration estimate neglect the contribution of abiotic exchange?
	Chen Xi; Wang Wenfeng; Luo Geping; Ye Hui
来源期刊	Journal of Arid Land
ISSN	1674-6767
出版年	2014
卷号	6 期号:2 页码:129-135
英文摘要	This study examines the hypothesis that soil respiration can always be interpreted purely in terms of biotic processes, neglecting the contribution of abiotic exchange to CO_2 fluxes in alkaline soils of arid areas that characterize 5% of the Earth's total land surface. Analyses on flux data collected from previous studies suggested reconciling soil respiration as organic (root/microbial respiration) and inorganic (abiotic CO_2 exchange) respiration, whose contributions in the total CO_2 flux were determined by soil alkaline content. On the basis of utilizing meteorological and soil data collected from the Xinjiang and Central Asia Scientific Data Sharing Platform, an incorporated model indicated that inorganic respiration represents almost half of the total CO_2 flux. Neglecting the abiotic module may result in overestimates of soil respiration in arid alkaline lands, which partly explains the long-sought "missing carbon sink".
英文关键词	soil respiration abiotic exchange hypothetical system incorporated model missing carbon sink
类型	Article
语种	英语
开放获取类型	Other Gold
收录类别	CSCD
WOS研究方向	Agriculture
CSCD记录号	CSCD:5044763
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335307
作者单位	Chen Xi, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.; Wang Wenfeng, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.; Luo Geping, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.; Ye Hui, Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, State Key Laboratory of Desert and Oasis Ecology, Urumqi, Xinjiang 830011, China.
推荐引用方式 GB/T 7714	Chen Xi,Wang Wenfeng,Luo Geping,et al. Can soil respiration estimate neglect the contribution of abiotic exchange?[J],2014,6(2):129-135.
APA	Chen Xi,Wang Wenfeng,Luo Geping,&Ye Hui.(2014).Can soil respiration estimate neglect the contribution of abiotic exchange?.Journal of Arid Land,6(2),129-135.
MLA	Chen Xi,et al."Can soil respiration estimate neglect the contribution of abiotic exchange?".Journal of Arid Land 6.2(2014):129-135.