Soil erosion is one of the most critical threats to cultivated land. Yet little information available in Sub-Saharan Africa, especially on relative contributions various forms erosion. Therefore, this study’s objective was quantify soil loss by sheet and linear The study carried out sloping land rangeland Potshini catchment KwaZulu-Natal, South with an annual average rainfall 766 mm. computed u...

negative impacts of gully erosion in marly areas are severe due to improper landuse practices such as irrigation, tillage, overgrazing and degradation of vegetation cover. the objective of this research was to evaluate gully thresholds related to plant vegetation cover and landuse change in the agriculture (ag), fair rangeland (fr) and weak rangeland (wr) areas of ghaasr-e-shirin, kermanshah, i...

Overgrazing of China's grasslands is increasingly causing biodiversity to decline. In degenerated grasslands of northwest China endophyte (Epichloё gansuensis) infected Achnatherum inebrians (drunken horse grass) is becoming widely distributed because of its toxicity to livestock. In this study, we investigated the ecological consequences of endophyte toxicity in this native grass, at three sit...

Climate-driven changes in biotic interactions can profoundly alter ecological communities, particularly when they impact foundation species. In marine systems, changes in herbivory and the consequent loss of dominant habitat forming species can result in dramatic community phase shifts, such as from coral to macroalgal dominance when tropical fish herbivory decreases, and from algal forests to ...

Current literature suggests that grassland degradation occurs in areas with poor soil conditions or noticeable environmental changes and is often a result of overgrazing or human disturbances. However, these views are questioned in our analyses. Based on the analysis of satellite vegetation maps from 1984, 1998, and 2004 for the Xilin River Basin, Inner Mongolia, China, and binary logistic regr...

In this article, are analyzed the processes of desertification in Region Planning and Management Waters Macururé Curaçá Rivers. The mapping land use, through photointerpretation images RapidEye, allowed to verify that anthropized Caatinga, Caatinga park Agriculture occupy more than half region show decline vegetation resilience. These areas natural pastures support extensive herds whose overgra...

Negative impacts of gully erosion in marly areas are severe due to improper landuse practices such as irrigation, tillage, overgrazing and degradation of vegetation cover. The objective of this research was to evaluate gully thresholds related to plant vegetation cover and landuse change in the Agriculture (AG), Fair Rangeland (FR) and Weak Rangeland (WR) areas of Ghaasr-e-Shirin, Kermanshah, I...

there are many reports of serious problems of dust storm events in the western parts of iran. based on many researches, iraq is one of the main sources of dust storms in western parts of iran. the radial basis function network (rbfn) model has been used to assess wind erosion hazard in iraq as a main source area of dust storms over several western cities of iran. the percentage of vegetation is...

This paper presents a study on land degradation monitoring focused in the west part of the MuUs Sandy Land in Ordos, one of the important dry areas in China, aiming to understand land degradation distribution in space and time and the role of anthropogenic action in such land surface processes at local level. Multi-temporal Landsat images (MSS 1978, 1979; TM 1987, 1989, 1991 and 2007; ETM+ 1999...