Guangxi Province is one of the regions more serious desertification. This paper using ENVI image processing system, according to remote sensing image interpretation target mark and image spectral characteristics, found remote sensing interpretation model of the background information of forest, shrub and grass, agricultural land, surface water, towns, roads from TM and ETM data from 1988 to 200...

This is the ®rst of two papers that elaborate an integrated drainage network analysis system (IDNAS) for agricultural drainage management. In this paper, the system components, functions and implementation are presented. The IDNAS comprises an agricultural drainage network module, an evapotranspiration (ET) module and an event-based spatio-temporal module. The network module is designed to mode...

Soil erosion is an increasingly issue worldwide, due to several factors including climate variations and humans’ activities, especially in Mediterranean ecosystems. Therefore, the aim of this paper is: (i) quantify predict soil rate for baseline period (2000–2013) a future (2014–2027), using Revised Universal Loss Equation (RUSLE) Water Assessment Tool (SWAT) model R’Dom watershed Morocco, base...

Abstract Water erosion is among the largest and most crucial problems with soil loss that through land degradation in semi-arid regions North African areas are especially vulnerable to it. In addition, EL-Mador Valley Basin exposed due climate topographic properties as well a human activity. this scope, aim of study perform an evaluation hazards El-Mador by employing equation RUSLE data RS with...

The polygon boundaries on the digital map of land surface characteristic are conventionally represented as a sharp change (categorical format), which results in discrepancy between real world phenomena and the information presented by boundaries on map, and it is especially true for soil properties. This paper presents a probable impact 5 of the representation of geographic boundary for the soi...

The Cantareira System is one of the largest water supply systems in world, supplying about half consumed by 22 million inhabitants Metropolitan Region São Paulo, southeastern Brazil. In this scenario, view climate change, silting a serious environmental threat and major challenge to sustainability reservoirs. Therefore, identifying provenance sediments an essential tool support soil conservatio...

The Moroccan High Atlas is very sensitive to soil erosion due its steep slopes, torrential rains, and degraded plant cover. degradation of fertile soils in this mountainous watershed influences negatively upon agricultural productivity. objective study quantify the Tifnout Askaoun southern Morocco. Revised Universal Soil Loss Equation (RUSLE), geographic information system (GIS) techniques, Tro...