CENTRE ON THE PROBLEMS OF ECOLOGY AND PRODUCTIVITY OF FORESTS
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CENTRE ON THE PROBLEMS OF ECOLOGY AND PRODUCTIVITY OF FORESTS |
RUSSIAN ACADEMY OF SCIENCES |
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Tanasevich A.V., Rybalov L.B., Kamaev I.O. Dynamics of the Soil Mesofauna in Spruce Forests in the Zone Exposed to Technogenic Impact of the Mining Integrated Plant “Severonikel” // Forest Science (Lesovedenie). 2009. No 6. P. 63-72 (in Russian). The long-term dynamics of the soil mesofauna abundance and diversity in northern taiga spruce forests were analyzed along the gradient of aerotechnogenic trail of the mining-and-metallurgical integrated plant “Severonikel” (Murmansk region). Dominant groups were distinguished: spiders predominated by the number and taxonomic diversity; beetles (imago and larvae) determined the biomass of mesopedobionts. Among the biotic factors affecting the soil mesofauna, the leading one is the thickness and projective coverage of the moss layer. With approaching the pollution source, the trophic structure of mesopedobionts changes: the share of saprotrophs and phytophags decreased up to their complete disappearance; the specific weight of predators, on the contrary, increased up to 85% and more of their total biomass in the areas exposed to very strong effects of “Severonikel”. Despite the reduction in total technogenic emissions (by 5 times) from the metallurgic complex for the last 14 years, their adverse effect on the soil population remains considerable. No regenerative dynamics of the mesofauna was observed. Soil mesofauna, bioindication, pollution, metallurgical industry, Murmansk region |
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