التقييم الكمي للتعرية المائية لحوض وادي زراوة باستخدام نموذج Gavrilovc (EPM)‎

Abstract EN

The (EPM) model prepared by the scientist Gavrilovic is one of the most important models used to measure the quantities of soils lost due to water erosion.

The model is in a number of European countries and has achieved high accuracy results compared to field studies.

The study relied on a satellite view of the Land Sat 8 satellite for the year 2018 for the purpose of analyzing the land uses and vegetation density.

As for the rain data, due to the lack of climatic stations near the basin, the climate site (Chrsdata.

eng.

uci.

edu) was relied upon to obtain rain amounts from nine points for a supposed rain station (3) inside the basin and (6) surrounding Basin from all sides to estimate the average rainfall.

The study found that the levels of erosion in the Wadi Zarawah basin ranged between weak, medium and severe, while the amount of lost soil ranged between (314 - 2790 m 3 / km2 / year), while the general average of lost soils was (1552 m 3 / km2 / year)