3 research outputs found
Analysing soil degradation through hydric erosion. Case study - Ialomita County, Romania
Analy
sing soil degradation through hydric erosion. Case study
–
Ialomița
County, Romania.
Landscape degradation through different processes has
intensified and extended spatially to all geographical regions at global level,
irrespective of the social, economic
or political background. The main process
which contributes to soil degradation is hydric erosion. Surface drainage,
which is the most common form of erosion, affects hundreds of thousands of
hectares worldwide. Surface runoff therefore demands more attent
ion, as it
can produce advanced land degradation, up to the stage when it cannot be
used any more for agricultural purposes. In our country, hydric erosion affects
nearly 50% of all agricultural and arable land, with an annual estimated
damage of about 126
million tonnes of rich soil [1] [2]. The Ialomița county is
located on the lower reach of the homonymous river, in a landscape dominated
by lowlands, having more than 80% of its administrative area used for
agricultural purposes. Soil degradation through
different hydric processes
would therefore have major implications on agricultural yields, as it would
reduce the productivity potential of the soil land cover. Consequently, the main
goal of the present research was to quantify the amount of soil loss thr
ough
hydric erosion for the Ialomița county’s territory, using the Universal Soil Loss
Equation (USLE) and GIS
-
based techniques. This study also relies on many
scientific references, field observations and in
-
depth analysis of thematic
map