干旱区生态环境知识资源中心(Arid): Dust deposition and its significance to soil nutrients in the Otindag Desert, China

Arid

DOI	10.1016/j.jaridenv.2021.104612
	Dust deposition and its significance to soil nutrients in the Otindag Desert, China
	Wang, Xunming; Cai, Diwen; Li, Danfeng; Lou, Junpeng; Zheng, Yang; Hu, Shi; Liu, Fa
通讯作者	Li, DF (corresponding author), Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China.
来源期刊	JOURNAL OF ARID ENVIRONMENTS
ISSN	0140-1963
EISSN	1095-922X
出版年	2021
卷号	194
英文摘要	Quantification of fine fraction and nutrient inputs by dust deposition is vital to understand the biogeochemical cycling and its effect on vegetation succession in arid and semiarid regions. The Otindag Desert of China is usually regarded as a dust source area, and little is known about its sink function by dust deposition. Dust and topsoil sampling and nutrient analyses were conducted to determine the contributions of dust deposition (fractions <50 mu m in diameter) on topsoil heterogeneity across the Otindag Desert. Mean dust deposition intensity from field investigation was 19.69 +/- 7.77 g/m(2) from August 2018 to July 2019. There were significant spatial differences in dust deposition, and the Otindag Desert received more dust deposition from external sources. Inputs of available phosphorus, total phosphorus, total nitrogen and soil organic carbon were 0.45 +/- 0.083 mg/m(2), 0.011 +/- 0.007 g/m(2), 0.027 +/- 0.018 g/m(2), and 0.331 +/- 0.224 g/m(2), respectively. The nutrient contents within dust deposition fractions were higher on average by 104% than topsoil, and the co-occurrence of dust emission and deposition contributes to the heterogeneity of topsoil. The results of this study are essential for taking efficient measures to restore degraded land in the Otindag Desert and other similar regions.
英文关键词	Dust deposition Topsoil Nutrient Arid and semiarid region Otindag desert
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000691565800004
WOS关键词	EPHEMERAL RIVER VALLEYS ; WIND EROSION ; AEOLIAN DUST ; ATMOSPHERIC DEPOSITION ; ASIAN DUST ; SAHARAN DUST ; NEW-MEXICO ; ECOSYSTEM ; IRON ; FLUX
WOS类目	Ecology ; Environmental Sciences
WOS研究方向	Environmental Sciences & Ecology
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/363751
作者单位	[Wang, Xunming; Cai, Diwen; Li, Danfeng; Lou, Junpeng; Zheng, Yang; Hu, Shi; Liu, Fa] Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China; [Wang, Xunming] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Wang, Xunming,Cai, Diwen,Li, Danfeng,et al. Dust deposition and its significance to soil nutrients in the Otindag Desert, China[J]. 中国科学院地理科学与资源研究所,2021,194.
APA	Wang, Xunming.,Cai, Diwen.,Li, Danfeng.,Lou, Junpeng.,Zheng, Yang.,...&Liu, Fa.(2021).Dust deposition and its significance to soil nutrients in the Otindag Desert, China.JOURNAL OF ARID ENVIRONMENTS,194.
MLA	Wang, Xunming,et al."Dust deposition and its significance to soil nutrients in the Otindag Desert, China".JOURNAL OF ARID ENVIRONMENTS 194(2021).