[1]杨喆,朱冰川,戴玺铭,等.基于2025—2026年监测的太湖底泥越冬藻分布格局研究[J].江苏水利,2026,(08):10-15.
 YANG Zhe,ZHU Bingchuan,DAI Ximing,et al.Research on the distribution pattern of overwintering algae in sediments of Lake Taihu based on monitoring data in the two years of 2025 and 2026[J].JIANGSU WATER RESOURCES,2026,(08):10-15.
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基于2025—2026年监测的太湖底泥越冬藻分布格局研究()

《江苏水利》[ISSN:1006-6977/CN:61-1281/TN]

卷:
期数:
2026年08期
页码:
10-15
栏目:
水生态与环境
出版日期:
2026-08-01

文章信息/Info

Title:
Research on the distribution pattern of overwintering algae in sediments of Lake Taihu based on monitoring data in the two years of 2025 and 2026
文章编号:
1007-7839(2026)08-0010-0006
作者:
杨喆朱冰川戴玺铭庄严宋挺徐源
(江苏省无锡环境监测中心,江苏 无锡 214121)
Author(s):
YANG Zhe ZHU Bingchuan DAI Ximing ZHUANG Yan SONG TingXU Yuan
(Jiangsu Wuxi Environmental Monitoring Center, Wuxi 214121, China)
关键词:
太湖底泥越冬藻微囊藻分布水华
Keywords:
Taihu Lake sediment overwintering algae microcystis spp. distribution algal bloom
分类号:
X524
文献标志码:
B
摘要:
在藻情整体改善但存在波动反弹的背景下,为探究太湖底泥越冬藻类分布特征及其与水华暴发的关联性,于2025、2026年一季度在太湖无锡水域北部、西部、湖心及南太湖4个湖区布设10个点位对底泥越冬藻类开展监测。研究表明:2026年3月各湖区底泥总藻密度为39.9万~68.1万个/g,微囊藻密度为21.0万~33.1万个/g,较2025年同期分别下降75.3%和82.3%。北部湖区底泥微囊藻赋存量最高(33.1万个/g),除西部湖区,其余湖区底泥藻类含量与历史水华暴发频率、藻情基本吻合,说明高频高强度水华区域与底泥微囊藻高赋存量互为因果,形成“水体-底泥”间的藻类循环累积效应;西部湖区虽为近年来水华高发区域,但其底泥藻含量连续两年处于最低水平,呈现底泥-水体藻情“倒挂”现象,反映出清淤工程的生态效应逐步显现。
Abstract:
In the context of overall algae improvement but with fluctuations and rebounds, to investigate the distribution characteristics of overwintering algae in the bottom sediments of Taihu Lake and their correlation with algal blooms, 10 monitoring points were established in four lake areas—the northern, western, central, and southern parts of the Wuxi waters of Taihu Lake—during the first quarters of 2025 and 2026. The study revealed that in March 2026, the total algae density in the bottom sediments of each lake area ranged from 399,000 to 681,000 cells/g, with microcystis density at 210,000 to 331,000 cells/g, representing decreases of 75.3% and 82.3% compared to the same period in 2025. The northern lake area exhibited the highest microcystis stock in the bottom sediments (331,000 cells/g). Except for the western lake area, the algae content in the bottom sediments of the other lake areas aligned with historical algal bloom frequencies and algae conditions, indicating a mutual causation between high-frequency, high-intensity bloom areas and elevated microcystis stocks in the sediments, forming a “water-body-sediment” algae cycling and accumulation effect. Although the western lake area has been a high-frequency algal bloom zone in recent years, its bottom sediment algae content remained at the lowest level for two consecutive years, presenting an “inverted” algae condition between the sediments and water body, reflecting the gradually emerging ecological effects of dredging projects.

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备注/Memo

备注/Memo:
收稿日期:2026-05-22
作者简介:杨喆(1989—),男,高级工程师,博士,主要从事环境监测及水利自动信息化工作。E-mail: 08300136@163.com
更新日期/Last Update: 2026-08-01