The influence of trees and shrubs vegetation of sheltered forest strips on the characteristics of the steppe soil cover

The soil in forest plantations is constant close interaction with woody and shrubby plants. It acts as a determining factor creating optimal conditions for the existence of natural artificially created communities. Modern steppe afforestation has number unresolved questions regarding nature degree influence tree-shrub vegetation on typical zone – ordinary chernozem, feasibility ecosystems various practical importance Ukraine. paper presents results study impact tree shrub strips their cover. content humus, exchangeable hydrolytic acidity soils, salt extract from soils belts were determined іn edaphotops five territory Prysamarsky International Biosphere Reserve, located village Andriivka, Novomoskovsk district, Dnipropetrovsk region. obtained data compared similar measurements indicators region site variegated-grassy-grassy-cobaceous steppe. A comparison humus under virgin lands confirms theory positive relevant effect formation forest-improved chernozems conditions. ranged 0.2 to 0.8 mg-eq. per 100 g soil, value was 0.52 2.11 maximum values ​​of both types noted 20–50 cm horizon PP 224 oak plantation. characteristics cover will be useful clarifying directions features chernozem Ukraine can serve valid arguments making decisions creation field-protective within