Yu.I. Cheverdin1, V.S. Vavin2, A.G. Ahtyamov2, D.A. Voronin1
1Voronezh Research Institute of Agriculture of V.V. Dokuchaeva
2State scientific organization "Kameno-Stepnoe" exsperimental forestry of Voronezh science and research institute of akqricalturat sciences otter V.V. Dokuchayev of the Russian of agricultural sciences
Summary. Results of researches of change chemical, water and water - salt characteristics of chernozems under the influence of old-age wide wood strips are presented. Researches are spent in a southeast part Is central - Chernozem region (Stone Steppe). The soil cover of a skilled site is presented basically by a combination of chernozems ordinary and typical. As a result of the spent researches features of water - physical properties of an investigated profile of soil (0-200 sm) are established. Dependence on a landscape accessory of a wood strip is shown. At its cross-section arrangement concerning a slope soil thickness is sated with a moisture to humidity corresponding ПВ - 58 % and more. On the flat sites humidity of soil does not exceed the least moisture capacity (НВ) - 42 %). The conducted researches have allowed to reveal activization of processes accumulation of salts under old-age wood strips. The maximum activity of an ion of sodium is marked in an average part wide (approximately nearby 60) forest belts. Direct communication of increase in accumulation of salts of sodium a wood strip is marked with the years. The constructed cartograms of a spatial variation of activity of an ion of sodium have allowed to detail areas of the maximum accumulation of salts. Depth on which increase activity of an ion of sodium to 2,0 and less units is marked, makes 120 activization of processes соленакопления us see In above lying soil horizons is not established. In chernozems of interstrip spaces activity of an ion of sodium did not fall below values 3,0. Thus it is noted essential distinctions in profile change of this indicator in arable soils.
Keywords: forest belts, chernozem, properties of soils.