Shrub encroachment in arid and semiarid rangelands, a worldwide phenomenon, results in a heterogeneous landscape characterized by a mosaic of nutrient-depleted barren soil bordered by nutrient-enriched shrubby areas known as ‘‘fertile islands.’’ Even though shrub encroachment is considered as a major contributor to rangeland degradation, little is known about mechanisms favoring the reversibili...

“Erodibility” is a characteristic of the soil that represents susceptibility with which its particles from most superficial layer are taken and transported to lower places by erosive agents, causing environmental economic damages. This work estimated erodibility in pastures forest areas municipality Porto Velho-Rondônia. In field, three different types vegetation were selected, one brachiaria, ...

This research work exposes the results of our study about cartographic and qualitative estimation hydric erosion watershed talangaï (Brazzaville) following PAP/RAC approach, tele detection’s data geographical information system in order to elaborate thematic cards by enlightening phenomenon. In this talangaï, phenomenon became recurrent causes more spectacular worrings. As a matter fact, except...

Highlights Very fine sand is the single most important variable for predicting rill and interrill erodibility values. Slope steepness property critical shear erosion. Erodibility prediction equations with best goodness-of-fits have both soil texture mineralogy terms. Equations to predict from texture, organic carbon, cation excha...

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...