IMPACT OF THE WATER EROSION ON AGROCHEMICAL FEATURES OF THE PODZOL-GLEYEY-YELLOW SOILS

Abstract

The podzol-gleyey-yellow soils spread in the seaside valley of the Lankaran-Astara region, relatively in the low terraces of the southern part, in the depression parts of the relief. In the west, the strip where this soil type is spread is limited by the yellow soil podzol-gleyey-yellow soil spread in the foothill plain, in the east, it is limited by the boggy soils of very hollow areas.

The describing soils have been developed well under low Hyrkan forests. The sparse forest in theses forests is reflected in separate groups the form of bushes. The zones where the noted soils spread were intensively assimilated and at the same time the farm activity caused serious changes.

As you khow, the podzol-gleyey yellow soil is one of the soils which is widely used in agriculture of the region.  Mainly, tea, feykhoa are grown from subtropical plants, and lemon, mandarine, orange, etc. are widely grown in these soils. Growing of the orchard, vegetable plants is realized. Recently, The erosion process widespread as a result of the natural and anthropogenic effects, and consequently agrochemical, agrophysical and morphological indications are exposed to the negative changes. Consideration of the erosion degree and an impact of the factors that will be a reason for erosion in increase of the production ability of these soils and production of the plants are cosidered one of the urgent problems.

It is should be noted that the soil fertility strongly decreases under the erosion influence, as a result, this is a reason for reduction of the productivity. A main goal in study of the fertility is to reveal an amount of the agrochemical features of the soil by the researches. For this purpose, the sections were applied in the gleyey-yellow soils of the Lankaran tea branch of the Scientific Research Institute of Fruit and Tea Cultivation of the Azerbaijan Republic and the soil samples were taken and investigated.