Entity

Time filter

Source Type

Rostov-na-Donu, Russia

Nikanorov A.M.,Russian Academy of Sciences | Trofimchuk M.M.,Russian Hydrochemical Institute
Doklady Earth Sciences | Year: 2010

In order to study the effect of pollutants on intrabasin processes, a series of nature experiments has been made in natural model ecosystems (mesocosms). The intensity of photosynthetic production and organic matter destruction have been studied as generalized thermodynamical parameters of the state of the ecosystem. On the basis of the ratio between destruction and overall production, dynamical phase patterns have been built. Analysis has shown that the dynamics of the state of the ecosystem described by these parameters corresponds to general regularities of the evolution of the state of dissipative systems. Consequently, the destruction-to-production ratio can be considered as a thermodynamic criterion for assessment in the evolution of the state of water ecosystems. On the basis of this criterion, and with the help of the approach proposed, methods of ecological load normalization can be elaborated. © Pleiades Publishing, Ltd., 2010. Source


Nikanorov A.M.,Russian Hydrochemical Institute
Russian Meteorology and Hydrology | Year: 2010

The present-day status of the national monitoring of the land surface water pollution is estimated; the key areas of its development and their scientific coverage by the methods and methodologies are under consideration. © 2010 Allerton Press, Inc. Source


Zakrutkin V.E.,Southern Federal University | Ivanik V.M.,Russian Hydrochemical Institute | Gribkov E.V.,Southern Federal University
Water Resources | Year: 2015

The results of integrated studies have been used to give a hydrochemical estimate of river water in Eastern Donbass. The technogenic waters of liquidated mines have been shown to contribute much to the changes in river water chemistry in the region. © 2015, Pleiades Publishing, Ltd. Source


Gotovtsev A.V.,Russian Academy of Sciences | Danilov-Danilyan V.I.,Russian Academy of Sciences | Nikanorov A.M.,Russian Hydrochemical Institute
Water Resources | Year: 2012

Problems resulting from the disagreement between Russian and World practices in the organization of biological oxygen demand monitoring being in disagreement with the up-to-date theoretical and experimental achievements. Proposals are put forward aimed to improve the implementation of measure-ments of biological oxygen demand in water bodies and the mathematical processing of the measurement results. © 2012 Pleiades Publishing, Ltd. Source


Rozhkov Y.Ph.,State Nature Reserve Olekminsky | Kondakova M.Y.,Russian Hydrochemical Institute
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2013

The study contains the results of forest monitoring at three levels: the forests condition assessment at the time of recording or mapping for this indicator, the seasonal changes assessment in the forests condition, mainly during the vegetation period and the evaluation of long-term changes in the values of the studied parameters on the example of the forests recovery after a fire. The use of two indices - NDVI and Image Difference in the boreal forests monitoring is treated. NDVI assesses the state of plant biomass and its productivity. The rate of Image Difference characterizes the optical density and allows estimate the density of the forest stand. In addition, by identifying Image Difference on summer and autumn pictures it can makes a distinction of different wood species, to divide forest areas, which consist of deciduous and coniferous species and larch which shedded needles at the end of the vegetation period. Therefore, it is possible to differentiate the pine, cedar, spruce forests on the one side and birch, larch, alder on the other side. The optical density of the forest decreases after the needles- and the leaf sheddings. Using the index Image Difference in estimates of long-term changes of the forest stand shows the trend of changes of the forest density and the tree species composition. The results of the analysis of the recovery process of the forest after a fire in the period from 1995 to 2009 showed how shoots of birch, larch and pine recover wastelands. © 2013 SPIE. Source

Discover hidden collaborations