نتایج جستجو برای: rusle
تعداد نتایج: 465 فیلتر نتایج به سال:
this paper presents a mapping procedure for risk mapping of water and wind erosion, whichhelps to identify protective measures needed in the planning and management of natural parks. the map of water erosion risk was developed by combining the original and revised universal soil loss equation methodologies (usle-rusle), and the map of wind erosion risk was developed using quirantes’ method. usi...
Evaluation of soil loss estimation using the RUSLE model and SCS-CN method in hillslope mining areas
Spatial pattern of soil erosion using RUSLE model and GIS software at the Saf Saf watershed, Algeria
Soil erosion is one of the problems threatening Algerian environment. In agriculture, soil leads to thinning topsoil under effect natural erosive forces water, or agricultural activities. The present study aims estimate average loss rate and identify vulnerable zones. Through integration RUSLE model at Saf watershed, various parameters are utilized such as rainfall erosivity factor (R), erodibi...
Despite being one of the most pro®table crops for the southeastern USA, cotton (Gossypium hirsutum L.) is considered to create a greater soil erosion hazard than other annual crops such as corn (Zea mays L.) and soybeans (Glycine max (L.) Merr.). Reduced tillage systems and cover cropping can reduce soil erosion and leaching of nutrients into ground water. The objectives of this study, which wa...
تعیین عامل توپوگرافی (ls) به دلیل پیچیدگی اثر آن بر پیش بینی تلفات خاک با مدل rusle بسیار دشوار است. هدف این تحقیق تعیین مناسبترین ابعاد سلولی نقشة dem برای محاسبة عامل ls به روش moore and wilson (1992) در منطقهای به مساحت 5326 هکتار در شمال غرب استان تهران بود. بدین منظور، با استفاده از dem با ابعاد سلولی 10 متر نقشههای dem با ابعاد سلولی 30 و 50 و 100 و 200 و 400 متر در محیط arcgis 9.3 ای...
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