雅库特共和国城市地区的环境地球化学(英文)

Environmental geochemistry of urban areas in Yakutia

回顾了北部城市化特别是雅库特城市地区环境的化学研究结果。结果表明,不利的气候和工程地质条件增加了城市生态系统的压力,并在所有环境成分中检测到与人类活动有关的强烈的地球化学异常。城市化地区的独特特征是向下迁移的深层污染与活性层和冻土的盐性。

The results of geochemical research of northern urbanized environments with particular refer-ence to Yakutia are reviewed .It is shown that unfavourable climatic and engineering-geological conditions result in increased pressure on urban ecosystems .Strong geochemical anomalies associated with human activities are detected in all environmental components .The unique feature of the urbanized areas is the high intensification rate of downward migration responsible for deep contamination and salinity of the ac -tive layer and permafrost .