Erosivity factor in the Universal Soil Loss Equation estimated from Finnish rainfall data
نویسندگان
چکیده
منابع مشابه
Rainfall erosivity in Europe.
Rainfall is one the main drivers of soil erosion. The erosive force of rainfall is expressed as rainfall erosivity. Rainfall erosivity considers the rainfall amount and intensity, and is most commonly expressed as the R-factor in the USLE model and its revised version, RUSLE. At national and continental levels, the scarce availability of data obliges soil erosion modellers to estimate this fact...
متن کاملارزیابی و بازنگری مدل MUSLE در پیش‌بینی هدر رفت خاک در کرت‌های کوچک با استفاده از باران‌های شبیه‌سازی شده
Modified Universal Soil Loss Equation (MUSLE) is one of soil loss estimation models which has been developed based on the runoff characteristics in the event scale. However, it needs to be evaluated in the plot scale for the semi-arid rainfall events. With this aim, a field study was designed using twenty one plots. Runoff and soil loss were measured using 5-min samples under seven rainfall int...
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Due to its modest data demands and transparent model structure, the Universal Soil Loss Equation (USLE) remains the most popular tool for water erosion hazard assessment. However, the model has several shortcomings, two of which are likely to have prominent implications for the model results. First, the mathematical form of the USLE, the multiplication of six factors, easily leads to large erro...
متن کاملEstimation of rainfall erosivity using 5- to 60-minute fixed-interval rainfall data from China
The 30-min rainfall erosivity index (EI30) is commonly used in the Universal Soil Loss Equation for predicting soil loss from agricultural hillslopes. EI30 is calculated from the total kinetic energy and the maximum 30-min rainfall intensity of a storm. Normally, EI30 values are calculated from breakpoint rainfall information taken from continuous recording rain gauge charts, however, in many p...
متن کاملModeling the Supply of Sediment Retention Ecosystem Service (Case study: Eastern Part of Gorgan-Rud Watershed)
Ecosystem services are benefits that people obtain from ecosystems. Soil retention is one of the most important ecosystem services. The capacity of ecosystem to maintain soil can be estimated by quantifying this services. In this study, version 3.0.0 of the InVEST software was used to map this ecosystem service in the eastern part of Gorgan-Rud watershed. The InVEST model employs the Universal ...
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ژورنال
عنوان ژورنال: Agricultural and Food Science
سال: 1993
ISSN: 1795-1895,1459-6067
DOI: 10.23986/afsci.72650