کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4572106 1332151 2011 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Spatial delineation of organic carbon-rich Colluvial soils in Chernozem regions by Terrain analysis and fuzzy classification
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات فرآیندهای سطح زمین
پیش نمایش صفحه اول مقاله
Spatial delineation of organic carbon-rich Colluvial soils in Chernozem regions by Terrain analysis and fuzzy classification
چکیده انگلیسی

Colluvial soils are considered to be the direct result of accelerated soil erosion, resulting in accumulation of humus-rich soil material in terrain depressions and base parts of slopes. The organic carbon concentration in these soils and their depth make them an important organic carbon storage. Mapping the Colluvial soils, therefore, represents an important contribution in total carbon stock estimation. A method of delineating Colluvial soils is proposed by applying a combination of high resolution digital elevation model analysis and detailed field survey. Two models based on fuzzy classification of soil units were created using different topographic derivatives as the only input parameters to predict the Colluvial soil area on a morphologically diverse study site in the Southern Moravia, Czech Republic. The model that considers only the derivatives with a strong relationship to Colluvial soil occurrence reached 71% accuracy in Colluvial area delineation, while the model combining six commonly used derivatives showed less favorable results. The main advantage of the method lies in a low demand of input soil data and its relatively high accuracy.

Research Highlights
► Colluvial soils are important part of the soil cover.
► Colluvial soils mapping represents an important contribution in total soil carbon stock estimation.
► Soil terrain modeling can be used for Colluvial soil mapping.
► Choice of specific topographic derivatives improves Colluvial soils delineation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: CATENA - Volume 85, Issue 1, April 2011, Pages 22–33
نویسندگان
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