What is the mass of loess in the Loess Plateau of China?

doi:10.1016/j.scib.2019.03.021

	What is the mass of loess in the Loess Plateau of China?
	Zhu, Yuanjun 1,3,4; Jia, Xiaoxu 2,4; Qiao, Jiangbo 1; Shao, Ming'an 1,2,3,4
刊名	SCIENCE BULLETIN
	2019-04-30
卷号	64 期号:8 页码:534-539
关键词	The Loess Plateau Loess mass Pedotransfer function Soil erosion Bulk density
ISSN号	2095-9273
DOI	10.1016/j.scib.2019.03.021
通讯作者	Zhu, Yuanjun(zhuyj@nwsuaf.edu.cn)
英文摘要	The Loess Plateau of China (LP) has the largest and thickest loess deposits in the world. Quantifying the amount of loess in the LP is crucial for investigating the accumulation and erosion of loess, and determining the regional soil and water resource capacity. We used loess thickness data, a pedotransfer function for bulk density (BD), and the clay content data observed in 242 sites across the LP to derive the BD of loess and then estimate the loess mass and its distribution across the LP. The results indicated that the average BD of loess between the surface and bedrock is 1.58 g cm(-3), varying from 1.18 to 1.87 g cm(-3). The total loess mass is approximately 5.45 x 10(13) t, and the average loess mass over an area of 1 m(2) is 169 t, ranging from 1.36 to 585 t. The greatest mass of loess is in the south-central of the LP while the lowest mass of loess is in the northwest and river valley areas. Our estimate of loess mass provides key data for calculating water, carbon, and nutrient storages in the LP, which improves our understanding of soil-water processes and ecohydrological systems in this landscape. (C) 2019 Science China Press. Published by Elsevier B.V. and Science China Press. All rights reserved.
资助项目	National Natural Science Foundation of China[41571130081] ; National Natural Science Foundation of China[41371242] ; National Natural Science Foundation of China[41530854] ; Youth Innovation Promotion Association of the Chinese Academy of Sciences[2017076] ; Youth Innovation Research Team Project[LENOM2016Q0001] ; Open Research Fund of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021402-1806]
WOS关键词	WATER STORAGE VARIATIONS ; SOIL-EROSION ; GRAVITY RECOVERY ; CLIMATE-CHANGE ; CARBON ; FOOD ; ACCUMULATION ; NUTRIENTS ; RESPONSES ; IMPACTS
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000472942700011
资助机构	National Natural Science Foundation of China ; Youth Innovation Promotion Association of the Chinese Academy of Sciences ; Youth Innovation Research Team Project ; Open Research Fund of State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/58789]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhu, Yuanjun
作者单位	1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China 4.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100190, Peoples R China
推荐引用方式 GB/T 7714	Zhu, Yuanjun,Jia, Xiaoxu,Qiao, Jiangbo,et al. What is the mass of loess in the Loess Plateau of China?[J]. SCIENCE BULLETIN,2019,64(8):534-539.
APA	Zhu, Yuanjun,Jia, Xiaoxu,Qiao, Jiangbo,&Shao, Ming'an.(2019).What is the mass of loess in the Loess Plateau of China?.SCIENCE BULLETIN,64(8),534-539.
MLA	Zhu, Yuanjun,et al."What is the mass of loess in the Loess Plateau of China?".SCIENCE BULLETIN 64.8(2019):534-539.