Home – Home – Jornals – Contemporary Problems of Ecology 2002 number 1

The resistance of terrestrial ecosystems of the Baikal Region to acid precipitations has been studied, maps of distribution of the current acidity load and of critical loads of acidity on ecosystems of West Buruyatia (the Tunkin Hollow and its mountainous surroundings) and of the South-West Baikal (the Primorsky Range) have been drawn up.  It is established that the values of the current load of acidity are maximal in upper altitude zones of mountainous systems remote from industrial and agricultural centers. On the whole, the picture of spatial distribution of the critical load values follows the general laws of formation of the soil cover under the conditions of vertical zonality, becoming complicated due to spatial variability of intra-soil weathering values and of the biological circulation capacity.