FEATURES OF WATER REGIME OF THE MAIN SOIL TYPES IN KINBURN SAND ARENA

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FEATURES OF WATER REGIME OF THE MAIN SOIL TYPES IN KINBURN SAND ARENA

Journal Title: Науковий вісник НЛТУ України - Year 2017, Vol 27, Issue 4

Abstract

Hard natural and hydro-edaphic factors are restricted range of forest species in region and only two species – Scotch pine and Crimean pine can tolerate the extreme of environmental conditions. Soil water regime does not depend only on rainfall quantity but also on the water properties of the soil which include water capacity, permeability, water lifting capacity, evaporation and water absorption capacity. Soil and forest typology descriptions have made at the rate of 1/300 ha. Sixty soil-forest typology descriptions of Kinburn sand arena have been processed. It's identified and described in detail the five main soil types, the most common of which are sandy sod developed in ancient alluvial deposits of sand and sod-gley underdeveloped buried in black soil. The samples for water regime research include the amount of 30 pieces in different types of soil, different age in Crimean and Scotch pine plantations in rows and spaces between rows. Permeability measurements were performed in a 10-fold repetition using a steel cylinder height of 10 cm. Cylinder put in the soil in half and filled the rest with water to 50 mm graduations, corresponding indicator showers and measure off full soil water absorption. It's found out that field soil moisture was varying between 4-30 % by weight of absolutely dry soil. The lowest value of water capacity was recorded in sod-developed sandy soils on ancient alluvial sand deposits, which amounted to 4.2 %. The intensity of the absorption of water in different hydrology sites was distributed in the following order (highest): very dry pine forests – dry pine forests – fresh pine forests. Compacting soil in rows affected the rate of water penetration, which in 1.2-1.5 times increased the rate of water seepage between rows compared to the series. The results of hydrological studies show that soils of Kinburn sand arena are relating to the sweat type of water regime where moisture, which is losing ground significantly exceeds precipitation.

Authors and Affiliations

V. Yu. Yukhnovskyi, P. V. Pirohova

Keywords

genetic soil horizon; water capacity; permeability; water lifting capacity; evaporation; water absorption

EP ID EP198750
DOI 10.15421/40270401
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