Svyatecka A. The ecological features of rehabilitation of radioactively contaminated lands by afforestation (on the example of area of the absolute (obligatory) settling out).

Українська версія

Thesis for the degree of Candidate of Sciences (CSc)

State registration number

0411U001684

Applicant for

Specialization

  • 03.00.16 - Екологія

24-02-2011

Specialized Academic Board

Д 26.371.01

Institute of Agroecology and Environmental Management of National Academy of Agricultural Sciences of Ukraine

Essay

Intensity and character of natural succession processes have been estimated on the land of a zone unconditional resettlement after the after the termination of economic activities. The features of biogeochemical migration of radionuclides in transformed agricultural landscapes of a zone unconditional resettlement have been analyzed and characterized. It is defined a role created on old plowed soils, forest plantings as long-term depot radionuclides in small circulation for stabilization of a radiological situation. The importance of sole shoe have been expanded as biogeochemical barrier on the way of radionuclides migration which influences ecological features of actions on reafforestation and forest-growing in these territories, considering the pedigree structure of the created wood cultures, ways of preparation of soil and the subsequent actions for their protection. There have been based firmness and role of the recommended mode of mixing of tree species for creation of proof plantings (Pinus sylvestris, Betula pendula, Quercus rubra). It is provided that the technology of creation of forest culture should be as much simple as possible to exclude necessity of care in a current, at least, one half-life period of radionuclides (30 years). At the first stage of transformation of deposits preference should be given to the forest land deciduous stands Betula pendula, Quercus rubra, counting on natural renewal of Pinus sylvestris or entering it into cultures separate strips that will provide conditions for development of formations typical for a zone of Polesye stands Creation of forest cultures on radioactively contaminated territories can become a component of the programs on preservation of a biodiversity, carbon absorption and to create conditions for partial financial support of these expedient actions.

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