In the last decades, global warming has induced new trends in the dynamic development of the temperature and water regimes of soils. The main idea of the study was the search for soil identifiers of recent, regionally-specific climate changes occurring in the Volga River basin. Questions that were raised in the study: does recent climate changes find a response in soil properties of hydromorphic (waterlogged) soils of the southern taiga (1), what are the features of evolutionary trends related to ground water salinization in humid climate, as compared to other climate areas (2).

This article describes climate-induced changes in properties of saline hydromorphic soils of the Nero Lake depression over the last 30–40 years. Our study focuses on changes in soil pH and contents of organic carbon, calcium carbonate and soluble salts. A comparative analysis of soil analytical data identified the following trends of soil development: desalinization, decreasing contents of soil organic carbon and total nitrogen, but increasing contents of hydrogenic calcium carbonate. Ecological factors of a regional scale which act on a specific territory correct the direction of global climate-induced soil tendencies in comparison to other saline continental depressions. At the same time the data obtained and identified tendencies largely confirm the prognosis for a global warming scenario alongside increasing humidity.

Further research into unidirectional trends of soil development based on analyzing a large volume of data can allow for mitigation of influences of changing land use and a more precise detection of climate-induced processes of soil evolution.

在过去的几十年中，全球变暖在土壤温度和水分状况的动态发展中引发了新的趋势。该研究的主要思想是寻找伏尔加河流域最近发生的，特定于区域的气候变化的土壤标识符。研究中提出的问题：最近的气候变化是否在南部针叶林的水化（渍水）土壤的土壤特性中找到响应（1），与潮湿气候中的地下水盐渍化相关的演化趋势的特征是什么？到其他气候区（2）。

本文介绍了过去30–40年中气候导致的尼禄湖洼地盐渍水形土壤特性的变化。我们的研究重点是土壤pH值的变化以及有机碳，碳酸钙和可溶性盐含量的变化。对土壤分析数据的比较分析确定了土壤发展的以下趋势：脱盐，土壤有机碳和总氮含量降低，但碳酸氢钙含量提高。与其他盐碱大陆洼地相比，在特定领土上起作用的区域尺度的生态因素纠正了全球气候引起的土壤趋势的方向。同时，获得的数据和确定的趋势在很大程度上确认了全球气候变暖和湿度增加的预后。

在分析大量数据的基础上对土壤发展的单向趋势进行进一步研究，可以减轻土地利用变化的影响，并更精确地检测气候引起的土壤演化过程。