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DIFFERENTIATED CHANGES OF DRAINAGE IN THE BASINS OF THE CIULUC AND CULA RIVERS IN THE 20 TH CENTURY

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Author(s): Igor Codreanu

Journal: Present Environment and Sustainable Development
ISSN 1843-5971

Volume: 5;
Issue: 1;
Start page: 5;
Date: 2011;
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Keywords: basin | drainage | morphometric characteristics | environmental factors | evolution.

ABSTRACT
In the content of the article reflects a comparative analysis of the evolution of drainage in two basins: the Ciuluc and Cula rivers in Moldova. Modifications of morphometric differences are caused by the impact of the environment factors in these basins agricultural regime react primarily the structure and apparent density of the soil.. These cause the soil porosity, therefore, pore space is a comprising index of physical change processes showing certain dependencies on the impact upon soil. In case of conventional agricultural soil working systems, based on ploughing, the physical degradation processes (compaction. dismantling) have major ratios and lead to the constitution of a faulty pore space in soil, which affects the processes of reproducing the chernozems type of pedogenesis. The alternative (conservative) tillage systems diminish the stratification, reduce soil profile stratification and ensure the stability as well as the continuity of pore space. During the whole year, the optimal conditions for ecosystem functioning and reproduction of soil type chernozem soil formation are created.
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