Abstract

The article presents the results of summer dry-season areal surveys of subsoil water chemistry in the drainage basin of the Ivankovo Reservoir in the Volga segment from Tver City to Dubna City over period 1981–2019. The zone of subsoil water pollution by nutrients has shifted from the anthropogenic landscapes of agricultural fields to residential areas: horticultural and cottage settlements. Local zones of subsoil water pollution by nutrients still persist under fertilized fields and large cattle farms. The long-term dynamics of the major diffuse pollution sources and the regime of nutrients in the Ivankovo Reservoir are discussed.

中文翻译：

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伊万科沃水库流域底土水中氮磷浓度的长期动态。

摘要

本文介绍了从夏季到1981-2019年，特维尔市至杜布纳市伏尔加河段伊万科沃水库集水盆地地下土壤化学过程的夏季枯水地区调查结果。营养物质对土壤下层水的污染区域已经从人为的农业景观转移到居民区：园艺和平房住所。在肥沃的土地和大型养牛场下，养分对土壤深层水的污染仍然存在。讨论了伊万科沃水库中主要弥散性污染源的长期动态和养分状况。