Global analysis of cover management and support practice factors that control soil erosion and conservation
作者机构：Arid Land Research CenterTottori University1390 HamasakaTottori680-0001Japan College of Agriculture and Environmental SciencesBahir Dar UniversityP.O.Box 1289Bahir DarEthiopia International Platform for Dryland Research and EducationTottori UniversityTottori680-0001Japan Department of Land Resources Management and Environmental ProtectionMekelle UniversityP.O.Box 231MekelleEthiopia Faculty of Civil and Water Resource EngineeringBahir Dar Institute of TechnologyBahir Dar UniversityP.O.Box 26Bahir DarEthiopia Department of Earth and Environmental SciencesKULeuven3001HeverleeBelgium University of LiegeDepartment of Geography(U.R.SPHERES)Clos Mercator 34000LiègeBelgium European CommissionJoint Research Centre(JRC)Ispra(VR)21027Italy Environmental GeosciencesUniversity of BaselBasel4056Switzerland National Sedimentation LaboratoryAgricultural Research ServiceUnited States Department of AgricultureUSA Faculty of Earth Sciences and Spatial ManagementMaria-Curie Sklodowska UniversityKrasnicka 2D20-718LublinPoland
出 版 物：《International Soil and Water Conservation Research》 (国际水土保持研究（英文）)
年 卷 期：2022年第10卷第2期
页 面：161-176页
核心收录：
学科分类：0830[工学-环境科学与工程（可授工学、理学、农学学位）] 082802[工学-农业水土工程] 090707[农学-水土保持与荒漠化防治] 0907[农学-林学] 08[工学] 0828[工学-农业工程] 09[农学] 0903[农学-农业资源与环境] 0815[工学-水利工程]
基 金：the Science and Technology Research Partnership for Sustainable Development(SATREPS,Grant Number JPMJSA1601) the Japan Science and Technology Agency(JST)/Japan International Cooperation Agency(JICA)
主 题：Climate regimes Drought-prone Erosion modeling Land use Soil conservation
摘 要：Cover management and support practices largely control the magnitude and variability of soil *** soil erosion models account for their importance(particularly by C-and P-factors in the Revised Universal Soil Loss Equation),obtaining spatially explicit quantitative field data on these factors remains ***,also our insight into the effects of soil conservation measures at larger spatial scales remains *** analyzed the variation in C-and P-factors caused by human activities and climatic variables by reviewing 255 published articles reporting measured or calculated C-and P-factor *** found a wide variation in both factor values across climatic zones,land use or cover types,and support *** average C-factor values decreased from arid(0.26)to humid(0.15)climates,whereas the average P-factor values increased(from 0.33 to 0.47,respectively).Thus,support practices reduce soil loss more effectively in drylands and drought-prone *** global average C-factor varies by one order of magnitude from cropland(0.34)to forest(0.03).Among the major crops,the average C-factor was highest for maize(0.42)followed by potato(0.40),among the major orchard crops,it was highest for olive(0.31),followed by vineyards(0.26).The P-factor ranged from 0.62 for contouring in cropland plots to 0.19 for trenches in uncultivated *** C-factor results indicate that cultivated lands requiring intensive site preparation and weeding are most vulnerable to soil loss by sheet and rill *** low P-factor for trenches,reduced tillage cultivation,and terraces suggests that significantly decreased soil loss is possible by implementing more efficient management *** results improve our understanding of the variation in C-and P-factors and support large-scale integrated catchment management interventions by applying soil erosion models where it is difficult to empirically determine the impact of particular land use or cover types and support
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