KMS Institute Of Geographic Sciences And Natural Resources Research,CAS
| Loess Thickness Variations Across the Loess Plateau of China | |
Zhu, Yuanjun1,2,4; Jia, Xiaoxu3,4; Shao, Mingan1,2,3,4
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| 2018-07-01 | |
| Source Publication | SURVEYS IN GEOPHYSICS
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| ISSN | 0169-3298 |
| Volume | 39Issue:4Pages:715-727 |
| Corresponding Author | Jia, Xiaoxu(jiaxx@igsnrr.ac.cn) |
| Abstract | 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. |
| Keyword | Soil thickness Loess Digital elevation map (DEM) Neighborhood analysis The Loess Plateau |
| DOI | 10.1007/s10712-018-9462-6 |
| WOS Keyword | SOIL THICKNESS ; WATER ; PREDICTION ; EVOLUTION ; PATTERNS ; SURFACE |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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] |
| Funding Organization | 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 |
| WOS Research Area | Geochemistry & Geophysics |
| WOS Subject | Geochemistry & Geophysics |
| WOS ID | WOS:000434468100006 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.igsnrr.ac.cn/handle/311030/54961 |
| Collection | 中国科学院地理科学与资源研究所 |
| Corresponding Author | Jia, Xiaoxu |
| Affiliation | 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 |
| Recommended Citation 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. |
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