The objective of this study is to make an analysis of the natural characteristics of the mountain territories in Southern Siberia as part of the development of the technique for assessing the ecological potential of geosystems by using the central part of the Oka Plateau as an example. A brief description of the relief and exogenous processes is provided for three geomorphological regions: Okinsko-Sorokskii, Okinsko-Tustukskii and Soroksko-Bel’skii, which are characterized by a predominance of flat-topped interfluves, slopes of moderate steepness and deeply incised river valleys. The main features of the climate and hydrological regime in the study area are emphasized. The first ever bathymetrical survey of Lake Sagan-Nur was made, and its morphometric indicators were calculated. On the basis of the morphology and bottom sediments of the lake basin, the genesis of the lake is treated as glaciotectonic. The chemical composition of the waters and the lake bottom sediments were determined, which may well characterize it as a natural unpolluted reservoir. The natural regionalization scheme for the southeastern part of Eastern Sayan is presented. The large-scale landscape map has been compiled for a portion of the central part of the plateau as well as indicating and the main species of vegetation within its boundaries. The identified features in the natural conditions of the study area (relief, climate, surface waters and landscapes) furnish a means of assessing the ecological potential of geosystems. A combination of the nature- and anthropocentric approaches in assessing the ecological potential of geosystems offers considerable scope for optimal use of natural and human resources of this area which sparsely populated but rich in mineral resources. On the plateau, a detailed study of landscapes and their components is crucial to the assessment of the ecological potential of geosystems, although forecasts of the possible enhancement in the influence of the anthropogenic factor and analysis of the consequences of such an influence on the natural environment are also required.

中文翻译：

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奥卡高原中部（东萨彦）地质系统的自然条件和生态潜力

本研究的目的是以奥卡高原中部为例，分析西伯利亚南部山区的自然特征，作为开发地质系统生态潜力评估技术的一部分。简要描述了三个地貌区域的地貌起伏和外生过程：Okinsko-Sorokskii、Okinsko-Tustukskii 和 Soroksko-Bel'skii，这些区域的特点是平顶间河道、中等陡峭斜坡和深切河流山谷。强调了研究区气候和水文状况的主要特征。首次对萨甘-努尔湖进行了测深调查，并计算了其形态测量指标。根据湖盆的地貌和底部沉积物，将湖的成因视为冰川构造。确定了水域和湖底沉积物的化学成分，这很可能将其描述为天然未受污染的水库。介绍了东萨彦岭东南部的自然区划方案。为高原中部部分地区编制了大比例尺景观图，并标明了其边界内的主要植被种类。研究区自然条件（地形、气候、地表水和景观）中已确定的特征为评估地质系统的生态潜力提供了一种手段。在评估地质系统的生态潜力时，以自然和人类为中心的方法相结合，为优化利用该地区的自然和人力资源提供了相当大的空间，该地区人口稀少但矿产资源丰富。在高原上，对景观及其组成部分的详细研究对于评估地质系统的生态潜力至关重要，尽管预测人为因素的影响可能会增强，并分析这种影响对自然环境的影响也是必需的。