Predicting the spatial distribution of soil erodibility factor using USLE nomograph in an agricultural watershed, Ethiopia
نویسندگان
چکیده
منابع مشابه
spatial variability of soil erodibility factor (k) of the usle in north west of iran
the soil erodibility factor varies spatially according to variations of some soil properties on the surface. this study was carried out to compare spatial variability of the soil erodibility factor as estimated and measured using the usle. the study was conducted in an agricultural zone with an area of in 900 km2 in hashtrood, northwestern iran. in the study area, 36 square grids with a dimensi...
متن کاملuncertainty of the soil erodibility factor (k), estimated using the usle nomograph in calcareous soils of hashtrood, (north-west of iran)
in the universal soil loss equation (usle), soil erodibility factor (k) is estimated through nomograph. using the nomograph in calcareous soils may lead to uncertainty in estimating the erodibility factor. this study was conducted in hashtrud, (north west of iran) from march 2005 to march 2006. field measurements were carried out in an agricultural area of 30 km × 30 km. thirty six land grids w...
متن کاملSpatial variability of soil properties and soil erodibility in the Alqueva reservoir watershed
The aim of this work is to investigate how the spatial variability of soil properties and soil erodibility (K factor) were affected by the changes in land use allowed by irrigation with water from a reservoir in a semiarid area. To this end, three areas representative of different land uses (agroforestry grassland, lucerne crop and olive orchard) were studied within a 900 ha farm. The interrela...
متن کاملDetermination of the linear and non-linear relationships between soil erodibility factor and effective parameters on it in a mountainous watershed with severe soil erosion
Soil erodibility factor is a criterion of soil particle resistance to detachment, transport, and effects of erosivity factors (rain drop, runoff, and wind) during the soil loss processes. In this study, non-linear support vector machines (SVMs) method was used for investigating the effects of some topography, soil physical and mechanical properties on soil erodibility in a part of Northern Karo...
متن کاملبررسی قابلیت استفاده از نقشۀ واحدهای خاک به‌منظور برآورد تغییرات مکانی فاکتور فرسایش‌پذیری خاک
Soil erodibility is one of the six components affecting water erosion of the universal soil loss equation (USLE). K-factor ‎is best obtained from direct measurements on natural plots. This is an infeasible task on large scales. To overcome this ‎problem measured K-factor values have been related to soil properties and the soil classification maps are used. The ‎current research exam...
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ژورنال
عنوان ژورنال: International Soil and Water Conservation Research
سال: 2015
ISSN: 2095-6339
DOI: 10.1016/j.iswcr.2015.11.002