干旱区生态环境知识资源中心(Arid): Taklimakan desert carbon-sink decreases under climate change

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	Taklimakan desert carbon-sink decreases under climate change
	Yang Fan; Huang Jianping; Zhou Chenglong; Yang Xinghua; Ali Mamtimin; Li Chaofan; Pan Honglin; Huo Wen; Yu Haipeng; Liu Xiaoyue; Zheng Xinqian; Han Dongliang; He Qing; Meng Lu; Chang Jun
来源期刊	Science Bulletin
ISSN	2095-9273
出版年	2020
卷号	65 期号:6 页码:431-433
英文摘要	The global carbon balance is a core issue in climate change research and a focus of international policy concern [1-3]. The missing carbon sink caused by approximately 1.6-2.0 Pg C a-1 (1 Pg = 1015 g) that is currently unaccounted for, has long plagued researchers [4,5]. Evidence is mounting those seemingly lifeless desert ecosystems, whose roles in the global carbon-cycle have long been neglected, exhibit the unconventional phenomenon of absorption of atmospheric CO_2, sequestering enormous amounts of CO_2 and thereby creating a significant carbon-sink [6-9]. This scenario appears to help narrow the gap in the missing carbonsink. However, this view has been questioned for the inaccurate carbon sequestration location [10]. The effects of abiotic processes, such as soil temperature gradient, moisture content, parent material, salt/alkali, and pH, on desert CO_2 exchange, have gradually revealed that the phenomenon of a desert carbon-sink is intimately associated with abiotic processes [11]. Thus far, the main processes, whereby, deserts act as carbon-sinks may include the following: (1) variation in the volume of gases caused by changes in pressure and temperature; (2) changes in solubility of CO_2 in soil water films; (3) pH-mediated CO_2 dissolution chemistry; and (4) surface adhesion of CO_2 onto soil minerals [11-13]. In ecosystems with relatively high productivity, the effects of abiotic processes on CO_2 exchange are often neglected because of strong biological respiration. In desert ecosystems, however, the effects of abiotic processes on CO_2 exchange cannot be ignored, although the CO_2 flux is extremely weak. The effects of abiotic processes are even greater than the effects of biological processes [11,14]. The latest research indicates that the absorbed CO_2 gradually, enters the desert groundwater layer by the process of leaching, and eventually converge in the underground saline water layer under the vast desert with the groundwater movement. This process is similar to the inorganic carbon sinks in the ocean [9].
类型	Article
语种	英语
开放获取类型	Bronze
收录类别	CSCD
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:6691606
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336269
作者单位	Yang Fan, College of Atmospheric Sciences, Lanzhou University;;Taklimakan Desert Meteorology Field Experiment Station of CMA, Institute of Desert Meteorology, China Meteorological Administration (CMA), ;;, Lanzhou;;Urumqi, ;; 730000;;830002.; Huang Jianping, College of Atmospheric Sciences, Lanzhou University;;Lanzhou University, ;;Collaborative Innovation Center for Western Ecological Safety, Lanzhou;;Lanzhou, ;; 730000;;730000.; Zhou Chenglong, Taklimakan Desert Meteorology Field Experiment Station of CMA, Institute of Desert Meteorology, China Meteorological Administration (CMA), Urumqi, Xinjiang 830002, China.; Yang Xinghua, Taklimakan Desert Meteorology Field Experiment Station of CMA, Institute of Desert Meteorology, China Meteorological Administration (CMA), Urumqi, Xinjiang 830002, China.; Ali Mamtimin, Taklimakan Desert Meteorology Field Experiment Station of CMA, Institute of Desert Meteorology, China Meteorological Administration (CMA), Urumqi, Xinjiang 830002, China.; Pan Honglin, Taklimakan D...
推荐引用方式 GB/T 7714	Yang Fan,Huang Jianping,Zhou Chenglong,et al. Taklimakan desert carbon-sink decreases under climate change[J],2020,65(6):431-433.
APA	Yang Fan.,Huang Jianping.,Zhou Chenglong.,Yang Xinghua.,Ali Mamtimin.,...&Chang Jun.(2020).Taklimakan desert carbon-sink decreases under climate change.Science Bulletin,65(6),431-433.
MLA	Yang Fan,et al."Taklimakan desert carbon-sink decreases under climate change".Science Bulletin 65.6(2020):431-433.