估算现代条件下佩普斯-普斯科夫湖浮游植物发展和水质指标

Т. Drozdenko, M. Medyankina, T. K. Antal
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引用次数: 0

摘要

目前,水圈污染问题严重,导致生态系统稳定性下降、生物群落的信号联系遭到破坏、食物金字塔遭到破坏。佩普斯-普斯科夫湖是位于普斯科夫州西北部的一个大型跨界水库,本文介绍了我们对该湖浮游植物群落和水质现状的监测结果。在 2022 年的生长季节,共鉴定出 8 个分区的 221 个属以下浮游植物类群。在整个研究期间,浮游植物的平均丰度为 1160 万个细胞/升,平均生物量为 1.6 克/立方米。根据生态和地理分析,湖中广泛分布的淡水浮游微藻以弱碱性水体为主。根据谢科诺夫斯基指数(Sjörensen-Chekanovsky index),普斯科夫湖和佩普西湖浮游藻类物种组成的共同度为 73.2%。无机生物分析表明,2022 年研究区域的水域受到轻微污染(水质二级)。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Estimation of indicators of phytoplankton development and water quality of the Peipus-Pskov Lake in modern conditions
Currently, there is an acute problem of pollution of the hydrosphere, which results in a drop in the stability of ecosystems, destruction of the signaling links of biocenoses, and food pyramid violation. This paper presents the results of our monitoring the current state of phytoplankton communities and water quality of the Peipus-Pskov Lake, a large transboundary reservoir located in the northwest of the Pskov region. During the growing season of 2022, 221 phytoplankton taxa with ranks below the genus from 8 divisions were identified. The average abundance of phytoplankton over the entire period of our study was 11.6 million cells/L, the average biomass was 1.6 g/m3. An ecological and geographical analysis was carried out, according to which widespread freshwater planktonic forms of microalgae predominated in the lake, preferring stagnant-flowing weakly alkaline waters. According to the Sjörensen–Chekanovsky index, the degree of commonality of the species composition of the planktonic algal floras in the Pskov and Peipsi Lakes was 73.2%. Saprobiological analysis showed that the waters of the study area in 2022 were slightly polluted (class II of water quality).
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