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<p>Reedbeds can have significant conservation value because birds, fish, and other animals concentrate there. Such areas exist in the Gulf of Finland near the mouth of the Neva River, while they have been lost in the river's mouth due to urbanization (the expansion of St. Petersburg city). Now there are seven reedbed areas, covering a total of 14.5 square kilometers. These wetlands stimulated the creation of protected wildlife areas nearby. The distribution of reedbeds may seem random, but we hypothesized that their location is influenced by wastewater. Our hypothesis was confirmed based on the data of sewage treatment facilities and historical maps (1855, 1913 and 1941). It turned out that local protected areas follow patterns of pollution. This situation suggests that, in urbanized areas, it is possible to predict and model the location of reedbeds. Conversely, observing the presence of reedbeds could serve as an indicator of hidden polluted effluents, prompting further research.</p>

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Formation of reedbeds of high ecological value at the vicinity of the sewage treatment plants of Saint Petersburg city

  • 期刊论文

  • 发表日期：

    2026年5月19日

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  • Igor Popov,
  • Dmitry Starikov,
  • Evgeny Abakumov

摘要

Reedbeds can have significant conservation value because birds, fish, and other animals concentrate there. Such areas exist in the Gulf of Finland near the mouth of the Neva River, while they have been lost in the river's mouth due to urbanization (the expansion of St. Petersburg city). Now there are seven reedbed areas, covering a total of 14.5 square kilometers. These wetlands stimulated the creation of protected wildlife areas nearby. The distribution of reedbeds may seem random, but we hypothesized that their location is influenced by wastewater. Our hypothesis was confirmed based on the data of sewage treatment facilities and historical maps (1855, 1913 and 1941). It turned out that local protected areas follow patterns of pollution. This situation suggests that, in urbanized areas, it is possible to predict and model the location of reedbeds. Conversely, observing the presence of reedbeds could serve as an indicator of hidden polluted effluents, prompting further research.