Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1002/ldr.2814 |
Determining RUSLE P- and C-factors for stone bunds and trenches in rangeland and cropland, North Ethiopia | |
Taye, Gebeyehu1,3; Vanmaercke, Matthias2; Poesen, Jean3; Van Wesemael, Bas4; Tesfaye, Samuale1,5; Teka, Daniel1,4; Nyssen, Jan6; Deckers, Jozef3; Haregeweyn, Nigussie7 | |
通讯作者 | Taye, Gebeyehu |
来源期刊 | LAND DEGRADATION & DEVELOPMENT
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ISSN | 1085-3278 |
EISSN | 1099-145X |
出版年 | 2018 |
卷号 | 29期号:3页码:812-824 |
英文摘要 | The implementation of soil and water conservation (SWC) measures in the Ethiopian Highlands is a top priority to reduce soil erosion rates. However, the effectiveness of these measures for different hillslope gradients and land use conditions remains poorly understood. This study addresses this knowledge gap by determining support practice (P) and cover-management (C) factors of the Revised Universal Soil Loss Equation for commonly used SWC structures in semi-arid environments. The factor values were calculated on the basis of soil loss data collected with 21 large runoff plots installed in rangeland and cropland sites. The P-and C-factors were calculated following the recommended procedures. Results show P-factors ranging from 0.32 to 0.74 for stone bunds, from 0.07 to 0.65 for trenches, and from 0.03 to 0.22 for stone bunds with trenches. Reduced storage capacities due to sediment deposition resulted in significant declines of the effectiveness of SWC structures over time. For example, the average P-factor value for trenches increased from 0.1 in the first year after installation to 0.51 after 3 years. C-factor values ranged from 0.23 to 0.82 in rangeland and from 0.03 to 0.35 in cropland. For rangeland, this large variability is due to vegetation cover changes caused by grazing. In cropland, C-factors vary with crop types and tillage practices. The results of this study not only aid in modelling and quantifying the short-term impacts of SWC structures on soil erosion rates but also highlight the importance of considering temporal variations of the effectiveness of SWC measures. |
英文关键词 | Ethiopian Highlands land use RUSLE soil and water conservation soil erosion |
类型 | Article |
语种 | 英语 |
国家 | Ethiopia ; Belgium ; Netherlands ; Japan |
收录类别 | SCI-E |
WOS记录号 | WOS:000428447600037 |
WOS关键词 | SOIL LOSS EQUATION ; LAND-USE ; WATER CONSERVATION ; RAINFALL EROSIVITY ; TIGRAY HIGHLANDS ; SEDIMENT YIELD ; EROSION ; RUNOFF ; MODEL ; DEGRADATION |
WOS类目 | Environmental Sciences ; Soil Science |
WOS研究方向 | Environmental Sciences & Ecology ; Agriculture |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/211473 |
作者单位 | 1.Mekelle Univ, Dept Land Resources Management & Environm Protect, POB 231, Mekelle, Ethiopia; 2.Univ Liege, Dept Geog, Clos Mercator 3, B-4000 Liege, Belgium; 3.Katholieke Univ Leuven, Dept Earth & Environm Sci, Celestijnenlaan 200E, B-3001 Leuven, Belgium; 4.Catholic Univ Louvain, Georges Lemaitre Ctr Earth & Climate Res, Earth & Life Inst, B-1348 Louvain La Neuve, Belgium; 5.Wageningen Univ, Soil Phys & Land Management Grp, POB 47, NL-6700 AA Wageningen, Netherlands; 6.Univ Ghent, Dept Geog, B-9000 Ghent, Belgium; 7.Tottori Univ, Int Platform Dryland Res & Educ, Tottori, Japan |
推荐引用方式 GB/T 7714 | Taye, Gebeyehu,Vanmaercke, Matthias,Poesen, Jean,et al. Determining RUSLE P- and C-factors for stone bunds and trenches in rangeland and cropland, North Ethiopia[J],2018,29(3):812-824. |
APA | Taye, Gebeyehu.,Vanmaercke, Matthias.,Poesen, Jean.,Van Wesemael, Bas.,Tesfaye, Samuale.,...&Haregeweyn, Nigussie.(2018).Determining RUSLE P- and C-factors for stone bunds and trenches in rangeland and cropland, North Ethiopia.LAND DEGRADATION & DEVELOPMENT,29(3),812-824. |
MLA | Taye, Gebeyehu,et al."Determining RUSLE P- and C-factors for stone bunds and trenches in rangeland and cropland, North Ethiopia".LAND DEGRADATION & DEVELOPMENT 29.3(2018):812-824. |
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