Экологическая оценка состояния зеленых насаждений г. Владивостока

Abstract

The results of monitoring in green plantations and residential areas of urban Vladivostok agglomeration are presented in this paper. On the base of biogeochemical approach the heavy metals absorption by species and communities of urban plants are examined. The association of contaminant elements in urban plants, including Fe, Pb, Zn, Cu and Ni, is defined. The high absorption capacity of heavy metals by some shrubs and trees is established. The maximum of Fe concentration (2 213 mg/kg) was recorded in the leaves of Crataegus pinnatifida Bunge in the roadside avenues, Pb (44,52 mg/kg) – Microcerasus tomentosa (Trunb.) Eremin et Juschev in the public gardens, Zn (511,6 mg/kg) – Betula platyphylla Sukacz. and Cu (25,54 mg/kg) – Philadelphus tenuifolius Ropr. et Maxim. in the parks, Ni (7,61 mg/kg) – Fraxinus rhynchophylla Hance in the inner-city recreational forest. The six types of urban greenery plantations of are compared. The highest anthropogenic and technogenic loads the plants of avenues, public gardens and intra-quarter green plantations are experienced. The results of researches are scientificmethodical base to organize rational system of urban gardening and produce functional, aesthetic and steady green plantings.