نتایج جستجو برای: erosion hazard index
تعداد نتایج: 482333 فیلتر نتایج به سال:
Rainfall erosivity is the potential ability for rainfall to cause soil loss. The purpose of this study was to estimate the rainfall erosivity index for the Ghana Atomic Energy Commission site in order to compute the surface erosion rate. Monthly rainfall data, for the period 2003-2012 were used to compute annual rainfall erosivity indices for the site, using the Modified Fournier index. Values ...
Gully erosion is the most advanced water erosion in watersheds that produce large volumes of sediment can cause serious damage. In order to manage and cope with this type of erosion, to identify areas of high risk of gully erosion in the watershed is very important. For this purpose gully erosion hazard zonation maps by combining information layers of different factors affecting the formation o...
The regular patterns of soil erosion tend to change at different scales of observation, affecting the mechanism of soil erosion and its evolution characteristics. This phenomenon has essential scientific significance for the rational allocation of land resources and for studies on sustainable ecosystems. As an important agricultural area in China, Danjiangkou reservoir is threatened by severe s...
The first step to controlling soil loss, is estimating of soil erosion amount. Universal soil loss Equation is One of the ways is widely used to estimate erosion, in which the absence of long term data. Effective force in the development of various forms of erosion is the power erosivity of runoff and rainfall and are expressed in erosivity index. This study aimed to evaluate the erosivity Inde...
Soil erosion is considered as one of the most significant indices of land degradation, which once evaluated, a wide gamut of changes in the environment could be evaluated. The aim of this study was to evaluate the risk of soil erosion by the application of the CORINE model, as a suitable means of soil erosion assessment, in the semi-arid western areas of Golestan province. In this study, soil, ...
Extreme weather, sea-level rise and degraded coastal ecosystems are placing people and property at greater risk of damage from coastal hazards1–5. The likelihood and magnitude of losses may be reduced by intact reefs and coastal vegetation1, especially when those habitats fringe vulnerable communities and infrastructure. Using five sea-level-rise scenarios, we calculate a hazard index for every...
Sea level rise is often associated with climate change and global warming. The in shoreline a continuous process that occurs through various processes such as erosion, sedimentation, sea rise, wave behaviour land use. Rapid technological advancement has made it possible to quickly identify the changes combination of Geographical Information Systems (GIS) application Remote Sensing technology. c...
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