Peculiarities of the response of the balsamic poplar assimilation apparatus to the aerotechnogenic impact of aluminum production emissions
L. A. Dorokhova1, L. M. Pavlova1, D. V. Yusupov2, V. I. Radomskaya1
1Institute of Geology & Nature Management FEB RAS, Blagoveshchensk, Russia
2Amur State University, Blagoveshchensk, Russia
Keywords: aerotechnogenic pollution, aluminum production, fluoride, mineral phases, poplar leaves, biogeochemical calcium barrier, stomata
Abstract
The reactions of leaves of balsam poplar (Populus balsamifera L.) on the impact of emissions of aluminum smelters were analyzed. The results of comparative analysis of mineral phase distribution on the surface of poplar leaves in the influence zone of Bratsk, Irkutsk, Sayanogorsk, Krasnoyarsk and Novokuznetsk aluminum smelters are presented. Newly formed minerals similar in composition to fluorite and gypsum were found in stomata of poplar leaves. Calcite crystals were found in large quantities in the conductive system of leaves. The formation of a biogeochemical calcium barrier in the stomata of poplar leaves, through which the neutralization of fluorine and sulfur compounds into inert minerals is assumed.
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