Scholarly record
ASSESSMENT OF SOIL EROSION RISK IN THE WEST OF THE CENTRAL MOLDAVIAN PLATEAU
Abstract
Assessment of soil erosion risk has a great importance for management of land use, allowing decision factors from administration, agriculture management etc. to choose and recommend properly land use according to the sustainable development strategies. This study aims to assess the soil erosion rate in a region with small catchments (Icusesti, Glodeni, Rapa?), located in the west of the Central Moldavian Plateau, a region whose geomorphological characteristics have been shaped under the influence of monoclinal geological structure. By modeling the sedimentary rock package by the flowing waters, a specific relief of successive cuestas resulted, arranged with the front to the north and with the reverse to the south. The lands thus arranged were subjected to pedogenetic processes and erosion in different ways, having different qualities and land use types. Thus, the region presents itself as an alternation between low-slope lands, with low erosion and arable areas, and lands with high slopes, with high erosion potential, where the covers are forest, shrub land or meadow used as pasture. The estimation of the soil erosion rate was made by integrating in the Universal Soil Loss Equation (USLE) formula the erosion control factors, the most important factors are related to the slope, the land cover and the soil erodibility. The modeling was performed within ArcGIS and TNT Mips, by computer processing of morphometric and pedological indices, but also data collected both in the field and by remote sensing. It was generated spatial and quantitative information of potential and effective soil erosion rates.
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