Vertical distribution of sand layer CO2 concentration and its diurnal variation rules in Alxa desert region, northwest China

doi:10.1007/s12665-016-6083-6

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 黄土与第四纪地质国家重点实验室（2010~）

	Vertical distribution of sand layer CO2 concentration and its diurnal variation rules in Alxa desert region, northwest China
	Dong, Zhibo 3; Shao, Tianjie 3; Zhang, Liankai 1; Zhao, Jingbo 2,3; Ma, Yandong 3
刊名	ENVIRONMENTAL EARTH SCIENCES
	2016-09-01
卷号	75 期号:18
关键词	Sand Layer Co2 Concentration Diurnal Variation Rules Carbon Sequestration Diffusion Coefficient Alxa Desert Region
DOI	10.1007/s12665-016-6083-6
文献子类	Article
英文摘要	In order to ascertain the vertical distribution of sand layer CO2 concentration from the Alxa desert region as well as its impact on atmosphere CO2 and action on global carbon cycle, infrared CO2 monitor was used to perform 19 drilling holes to observe CO2 concentration day and night in the Nuoertu megadunes region, Shapotou trellis dunes region and Minqin barchan dunes region. The results showed that atmosphere CO2 concentration in Alxa desert region is lower than that in the sand layer of 1-5 m depths, which manifests that it is the source region of atmosphere CO2 and it releases CO2 day and night during warm seasons. The diurnal variation of sand layer CO2 concentration in extremely arid Alxa desert region shows obvious regularity: CO2 concentration of every depth varies from low to high to low from 8:00 am to next day 7:00 am. The diurnal variation of temperature is the main cause of diurnal variation of sand layer CO2 concentration, which are significantly correlated positively. In extremely arid desert region, sand layer moisture content is the main factor that determines sand layer CO2 concentration.
WOS关键词	CARBON-DIOXIDE ; TEMPERATE GRASSLAND ; ATMOSPHERIC CO2 ; ELEVATED CO2 ; FORESTS ; CYCLE ; IMPACTS ; SINK ; SOIL ; FERTILIZATION
WOS研究方向	Environmental Sciences & Ecology ; Geology ; Water Resources
语种	英语
WOS记录号	WOS:000384333000036
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/5660]
专题	地球环境研究所_黄土与第四纪地质国家重点实验室（2010~）
作者单位	1.Chinese Acad Geol Sci, Inst Karst Geol, Guilin 541000, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710075, Peoples R China 3.Shaanxi Normal Univ, Coll Tourism & Environm Sci, Xian 710062, Peoples R China
推荐引用方式 GB/T 7714	Dong, Zhibo,Shao, Tianjie,Zhang, Liankai,et al. Vertical distribution of sand layer CO2 concentration and its diurnal variation rules in Alxa desert region, northwest China[J]. ENVIRONMENTAL EARTH SCIENCES,2016,75(18).
APA	Dong, Zhibo,Shao, Tianjie,Zhang, Liankai,Zhao, Jingbo,&Ma, Yandong.(2016).Vertical distribution of sand layer CO2 concentration and its diurnal variation rules in Alxa desert region, northwest China.ENVIRONMENTAL EARTH SCIENCES,75(18).
MLA	Dong, Zhibo,et al."Vertical distribution of sand layer CO2 concentration and its diurnal variation rules in Alxa desert region, northwest China".ENVIRONMENTAL EARTH SCIENCES 75.18(2016).