Sovremennye problemy distantsionnogo zondirovaniya Zemli iz kosmosa, 2015, Vol. 12, No. 3, pp. 75-86
The response of vegetation to climate change in boreal and subarctic landscapes at the beginning of XXI century
T.B. Titkova
1 , V.V. Vinogradova
1
1 Institute of Geography RAS, Moscow, Russia
In the article, the impact of climate change on natural ecosystems in the northern landscapes of Russia is estimated. The research is based on the idea that a biome condition is determined mostly by warmth supply during vegetative period, winter severity and hydro-thermic factor. In the beginning of the XXI century, the maximal growth of indexes of climate change impact on natural ecosystems in the European part of Russia and Western Siberia is observed in tundra and forest-tundra zones. In the European part of Russia, changes are the consequence of warmth supply growth during summer and winter periods and earlier start of vegetation period. In Western Siberia, the cumulative impact on natural ecosystems is connected with warmth supply growth and moisture supply decrease. Vegetation response to climate conditions changes is evaluated from satellite data analysis. Vegetation index increase in the tundra zone, which is the result of biomass growth and photosynthesis activity, can be accompanied with albedo multidirectional trends in neighboring territories. This tendency may be the evidence of probable biomes loss of continuity in case of competition with allogenic vegetation species.
Keywords: climate change, heat supply, moisture content, natural ecosystems, NDVI, albedo
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