评估水文变化,并建议从乌贾尼大释放最小的流量,以改善Bhima河生态系统的健康
Gunjan J Mishra1, Akula Uday Kumar2, Mahesh R Tapas3
1Water Resources Engineering, National Institute of Technology Warangal, Warangal, Telangana 506004, India
概括
乌贾尼水显著改变了比马河的水位.
科学领域:
- 环境科学 环境科学
- 水文学的水文学
- 河流生态 河流生态
背景情况:
- 人为活动,包括水建设,改变流域特征,影响生态系统健康.
- 由于乌贾尼大的建设,Bhima河的生态系统健康受到影响.
- 了解水文变化对于河流生态系统管理至关重要.
研究的目的:
- 分析由乌贾尼大造成的Bhima河水文变化 (HA).
- 进行液压分析并确定生态系统健康的最佳流量释放.
- 为决策者提供基于数据的建议,以缓解河流生态系统退化.
主要方法:
- 在乌贾尼大下游收集了58年的河流排放数据 (1960-2018).
- 将数据分为大建设前和后的时期.
- 使用流量健康软件 (FHS) 计算HA并进行液压分析.
主要成果:
- 水堆积通过储存洪水水来显著减少高河流的流量.
- 环境设计流导致流体健康 (FH) 评分为0.62,表明鱼类息地良好 (速度和深度).
- 建议至少从水释放24.8 m3/s的水.
结论:
- 乌贾尼大改变了比玛河的流量,影响了生态系统的健康.
- 特定的流量释放可以改善水生生物的息地条件.
- 这项研究为管理受水影响的河流生态系统提供了关键的见解.
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