SOIL COVER, LAND USE AND TERRAIN DEGRADATION RELATIONS IN THE MIDDLE AND LOWER VASLUIEŢ BASIN
Journal Title: Present Environment and Sustainable Development - Year 2012, Vol 6, Issue 2
Abstract
The present study approaches the relations between soils, land use and degradation processes in the middle and lower basin of Vasluieţ. Almost all the components of the landscape make this area susceptible to degradation processes. Surface erosion affects large surfaces, although only 30% of the basin is moderately strongly affected. The most affected areas are the degraded orchards and vineyards, where erosion rates exceed 20 t/ha/y. Pastures are on the overall characterized by an erosion rate of 9.6 t/ha/y, and arable terrains by 8.82 t/ha/y. The second process as intensity and extension is landsliding, which also finds good conditions. They cover 28% of the basin surface, with 3500 ha (11.32%) active and 4986 ha (16.13%) stabilized. The main problems are given by the use of regosols (23%), erodosols and anthrosols as arable terrains (23%). From the total surface of the basin of 30900 ha, 2000 ha of erodosols and regosols are used as arable terrains. These problems have lead to the large extension of erosion on several land use categories. Almost 35% of the arable terrains are affected by moderate to severe erosion. Degraded orchards are affected 33.6% by strong and 15% by very strong erosion. Pastures are affected in a 45% proportion by moderate erosion and 10% of them by strong and very strong erosion. In conclusion, there is a clear need for a part of the terrains from the middle and lower basin of Vasluieţ to have their utilization changed, mostly from arable to pastures or even forests.
Authors and Affiliations
George Topşa, Ionuţ Vasiliniuc
Keywords
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