Spatial variation in soil resistance to flowing water erosion along a regional transect in the Loess Plateau
文献类型：期刊论文
| 作者 | Geng, Ren1; Zhang, Guang-hui1,2; Li, Zhen-Wei3; Wang, Hao1 |
| 刊名 | EARTH SURFACE PROCESSES AND LANDFORMS
 |
| 出版日期 | 2015-12-01 |
| 卷号 | 40期号:15页码:2049-2058 |
| ISSN号 | 0197-9337 |
| 关键词 | soil erosion detachment process soil erosion resistance transect the Loess Plateau |
| DOI | 10.1002/esp.3779 |
| 文献子类 | Article |
| 英文摘要 | The factors influencing soil erosion may vary with scale. It remains unclear whether the spatial variation in soil erosion resistance is controlled by regional variables (e.g. precipitation, temperature, and vegetation zone) or by local specific variables (e.g. soil properties, root traits, land use, and farming operations) when the study area enlarges from a hillslope or catchment to the regional scale. This study was performed to quantify the spatial variations in soil erosion resistance to flowing water under three typical land uses along a regional transect on the Loess Plateau and to identify whether regional or local specific variables are responsible for these changes. The results indicated that the measured soil detachment capacities (D-c) of cropland exhibited an irregular trend along the regional transect. The D-c of grassland increased with mean annual precipitation, except for two sites (Yijun and Erdos). The measured D-c of woodland displayed an inverted `U' shape. The changes in rill erodibility (K-r) of three land uses were similar to D-c, whereas no distinguishable trend was found for critical shear stress (tau(c)). No significant correlation was detected between D-c, K-r and tau(c), and the regional variables. The spatial variation in soil erosion resistance could be explained reasonably by changes in soil properties, root traits, land use, and farming operations, rather than regional variables. The adjustment coefficient of K-r for grassland and woodland could be well simulated by soil cohesion and root mass density (R-2 = 0.70, P<0.01), and the adjustment coefficient of critical shear stress could be estimated with aggregate stability (R-2 = 0.57, P<0.01). The results are helpful for quantifying the spatial variation in soil detachment processes by overland flow and to develop process-based erosion model at a regional scale. Copyright (c) 2015 John Wiley & Sons, Ltd. |
| WOS关键词 | DIFFERENT LAND USES ; CONCENTRATED FLOW ; OVERLAND-FLOW ; SHALLOW FLOW ; DETACHMENT CAPACITY ; AGGREGATE STABILITY ; SHEAR-STRENGTH ; GULLY EROSION ; RILL EROSION ; CHINA |
| 语种 | 英语 |
| 出版者 | WILEY-BLACKWELL |
| WOS记录号 | WOS:000368004400006 |
| 资助机构 | National Natural Science Foundation of China(41271287 ; State Key Laboratory Project of Earth Surface Processes and Resource Ecology(2012-ZY-02) ; Chinese Academy of Sciences ; 413121001) |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/67835]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang, Guang-hui |
| 作者单位 | 1.Beijing Normal Univ, Sch Geog, Beijing 100875, Peoples R China 2.Beijing Normal Univ, Sate Key Lab Earth Surface & Ecol Resources, Beijing 100875, Peoples R China 3.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Yangling 712100, Shaanxi, Peoples R China |
| 推荐引用方式 GB/T 7714 | Geng, Ren,Zhang, Guang-hui,Li, Zhen-Wei,et al. Spatial variation in soil resistance to flowing water erosion along a regional transect in the Loess Plateau[J]. EARTH SURFACE PROCESSES AND LANDFORMS,2015,40(15):2049-2058. |
| APA | Geng, Ren,Zhang, Guang-hui,Li, Zhen-Wei,&Wang, Hao.(2015).Spatial variation in soil resistance to flowing water erosion along a regional transect in the Loess Plateau.EARTH SURFACE PROCESSES AND LANDFORMS,40(15),2049-2058. |
| MLA | Geng, Ren,et al."Spatial variation in soil resistance to flowing water erosion along a regional transect in the Loess Plateau".EARTH SURFACE PROCESSES AND LANDFORMS 40.15(2015):2049-2058. |
入库方式： OAI收割
来源：地理科学与资源研究所
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