在多源人工水文调节下对湖泊植物浮游生物群体继承的贡献
Bowen Sun1, Na Li1, Guoyu Wang2
1State Key Laboratory of Hydraulic Engineering Intelligent Construction and Operation, Tianjin University, Tianjin, 300350, China.
Journal of environmental management
|November 17, 2024
概括
在Baiyangdian湖的人工水文调节改善了水质和浮游植物生物多样性. 福河和小河被确定为这些积极的生态变化的主要贡献者.
科学领域:
- 环境科学 环境科学
- 生态生态学 生态生态学
- 临界技术 临界技术
背景情况:
- 植物浮游生物是水生生态系统健康的敏感指标.
- 人工水文调节对水质和生态环境产生影响.
- 在大型湖泊中量化多源补充对植物浮游生物继承的影响是具有挑战性的.
研究的目的:
- 调查白阳地湖人工水文调节对生态的影响.
- 量化不同补水源对植物浮游生物群落继承的贡献.
- 确定影响植物浮游生物动态的关键物理化学因素.
主要方法:
- 2017年至2020年 (夏季和秋季) 的物理化学参数和植物浮游生物群落调查.
- 物理化学参数与植物浮游生物之间的相关性量化.
- 应用补充源贡献指数 (RSCI) 来评估水源影响.
主要成果:
- 植物浮游生物群体显示,随着Xanthophyta和Chrysophyta的出现,水柱清洁性得到了改善.
- 氨 (NH3-N),总 (TP) 和溶解氧 (DO) 被确定为关键因素.
- 福河 (>30%) 和小河 (>25%) 对物理化学因子反应的贡献最高.
结论:
- 在Baiyangdian湖的人工水文调节导致了有利的植物浮游生物的继承和增加了生物多样性.
- 该研究确定了影响生态变化的关键水源 (福河,小河) 和因素 (NH3-N,TP,DO).
- 这些发现支持优化人工水文调节,以恢复白阳地湖的生态.
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