Картографическое обеспечение раздела «Агроэкологические карты» в региональном атласе

Abstract

The proposed series of maps reveals the agroecological condition of the region, which are important for agriculture. The prepared maps are represented by three blocks. The block of indicators of agroclimatic conditions is a map of agroecological potential. This indicator increases from the northeast of the region to the southwest, taking values in the range from 6 to 7.5 points. The block of negative soil properties is represented by a map of waterlogged soils. Soils with varying degrees of waterlogging from weak to strong are common in the northern part of the region, reducing the agroecological potential of this part of the region. The block of soil quality indicators includes a series of maps: the content of physical clay; thickness of humus horizons; content and reserves of humus. In the north of the flat part of the region, soils of sandy and sandy loam composition with a physical clay content of no more than 20 % predominate; in the central and southern regions—soils of a heavy granulometric composition with a physical clay content of more than 40 %. The most favorable for the cultivation of agricultural crops are light and medium loamy soils with a physical clay content of 20–30 %, found mainly in the eastern part of the region. The thickness of humus horizons in soils varies from 1–3 to 30–40 or more cm. In most of the territory of the region, the thickness of organo-mineral horizons is in the range of 10–20 cm. The humus content in most of the territory of the region varies and is estimated as very low and low (less than 4 %). Humus reserves in most of the region do not exceed 50 t/ha. These maps can be recommended for inclusion in the agroecological section of the regional geographical atlas.