DBPapers
DOI: 10.5593/SGEM2016/B32/S13.019

EFFECT OF WATER EROSION ON BROWN SOILS (CAMBUSOILS CROMIC) PRODUCTIVITY BY THE EXAMPLE OF SAMTSKHE REGION (GEORGIA)

B. Kalandadze, V. Trapaidze
Wednesday 7 September 2016 by Libadmin2016

References: 16th International Multidisciplinary Scientific GeoConference SGEM 2016, www.sgem.org, SGEM2016 Conference Proceedings, ISBN 978-619-7105-62-9 / ISSN 1314-2704, June 28 - July 6, 2016, Book3 Vol. 2, 141-148 pp

ABSTRACT
Soil as one of the important constituent components of natural environment experiences different kinds of negative effect in the modern era, due to which takes place deterioration of its quantitative and qualitative properties. Water erosion processes represent one of the key factors of decrease in soil fertility and its deterioration. Mountain regions of Georgia and especially Samtskhe region located in the southern part of country are noteworthy in this regard.
Agriculture is of prime importance among branches of industry in Samtskhe region, which has quite high potential from the viewpoint of productivity of agricultural crops. This fact is verified by very fruitful and diverse soil types and especially brown soil (Cambisols Chromic), at which the major part of agricultural lands falls. Unfortunately, average quantity of upper layer of soils washed-out as a result of water erosion in the region varies within 25-30 t/he per year. Research goal is study of water erosion processes in Cambisols chromic of Samtskhe region and their effect on soil fertility. Calculation of water erosion of soils is one of the topical tasks. It depends on many factors: rain intensity, valley-side slope, filtration, soil type and composition, vegetable cover, land-use management etc. Calculation of each of these factors and its accuracy, in its turn, is very difficult task and is conditioned by many sub-factors.
Identification of territories influenced by erosion and assessment of erosion degree are very important for increase the fertility of agricultural lands and particularly Cambisols chromic, in order to mitigate to the maximum extent negative results caused by water erosion that will give us an opportunity to preserve soil fertility with minimum losses.

Keywords: wáter erozion, cambisols chromic, soil fertili

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