Characterization of production/mineralization processes in small lakes of Arkhangelsk Region
This study is aimed to characterize the intensity of production/destruction processes in small lakes of Arkhangelsk region during 2005-2007. We discuss the dynamics of production processes, its temporal variability, distribution of primary production and destruction in the photic zone of the lakes in relation to the biotic parameters of the environment. Our results demonstrate that studied lakes belong to water reservoirs of different trophic status, which is explained by different hydrological properties of the ecosystems, rocks lithology, composition of the watersheds and different degree of anthropogenic pressure. The relationship between production and mineralization demonstrate the on-going autopurification of the lakes. However not all studied ecosystems are capable to full mineralization of organic compounds, as a result the eutrophication of the lakes remains possible.