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Loess Thickness Variations Across the Loess Plateau of China

文献类型：期刊论文

作者Zhu, Yuanjun1,2,4; Jia, Xiaoxu3,4; Shao, Mingan1,2,3,4
刊名SURVEYS IN GEOPHYSICS
出版日期2018-07-01
卷号39期号:4页码:715-727
ISSN号0169-3298
关键词Soil thickness Loess Digital elevation map (DEM) Neighborhood analysis The Loess Plateau
DOI10.1007/s10712-018-9462-6
通讯作者Jia, Xiaoxu(jiaxx@igsnrr.ac.cn)
英文摘要The soil thickness is very important for investigating and modeling soil-water processes, especially on the Loess Plateau of China with its deep loess deposit and limited water resources. A digital elevation map (DEM) of the Loess Plateau and neighborhood analysis in ArcGIS software were used to generate a map of loess thickness, which was then validated by 162 observations across the plateau. The generated loess thickness map has a high resolution of 100 m x 100 m. The map indicates that loess is thick in the central part of the plateau and becomes gradually shallower in the southeast and northwest directions. The areas near mountains and river basins have the shallowest loess deposit. The mean loess thickness is the deepest in the zones with 400-600-mm precipitation and decreases gradually as precipitation varies beyond this range. Our validation indicates that the map just slightly overestimates loess thickness and is reliable. The loess thickness is mostly between 0 and 350 m in the Loess Plateau region. The calculated mean loess thickness is 105.7 m, with the calibrated value being 92.2 m over the plateau exclusive of the mountain areas. Our findings provide very basic data of loess thickness and demonstrate great progress in mapping the loess thickness distribution for the plateau, which are valuable for a better study of soil-water processes and for more accurate estimations of soil water, carbon, and solute reservoirs in the Loess Plateau of China.
WOS关键词SOIL THICKNESS ; WATER ; PREDICTION ; EVOLUTION ; PATTERNS ; SURFACE
资助项目National Natural Science Foundation of China[41571130081] ; National Natural Science Foundation of China[41530854] ; Key Research Program of the Chinese Academy of Sciences[KFZD-SW-306] ; National Key Research and Development Program of China[2016YFC0501706-03] ; Youth Innovation Research Team Project[LENOM2016Q0001]
WOS研究方向Geochemistry & Geophysics
语种英语
出版者SPRINGER
WOS记录号WOS:000434468100006
资助机构National Natural Science Foundation of China ; Key Research Program of the Chinese Academy of Sciences ; National Key Research and Development Program of China ; Youth Innovation Research Team Project
源URL[http://ir.igsnrr.ac.cn/handle/311030/54960]  
专题中国科学院地理科学与资源研究所
通讯作者Jia, Xiaoxu
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 & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China
3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, 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,Shao, Mingan. Loess Thickness Variations Across the Loess Plateau of China[J]. SURVEYS IN GEOPHYSICS,2018,39(4):715-727.
APA Zhu, Yuanjun,Jia, Xiaoxu,&Shao, Mingan.(2018).Loess Thickness Variations Across the Loess Plateau of China.SURVEYS IN GEOPHYSICS,39(4),715-727.
MLA Zhu, Yuanjun,et al."Loess Thickness Variations Across the Loess Plateau of China".SURVEYS IN GEOPHYSICS 39.4(2018):715-727.

入库方式： OAI收割

来源：地理科学与资源研究所

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