摘要
水库对上游来水的拦蓄作用会导致下游河道来水量急剧减少,这对下游河道的生态环境会造成很大的影响。分析了永康市杨溪水库库区多年平均径流量情况和下游河道生态环境,考虑以杨溪水库库区径流量作为建库前坝址处的径流量,研究建库前的原始生态供水量,采用典型年月径流量修正的Tennant法计算水库下游河道生态需水量。
The impounding effect of reservoirs will result in a sharp decrease of water in lower reaches,greatly affecting the ecological environment of downstream channels.Analyzing the average runoff and downstream ecological environment in the Yangxi Reservoir area for several years,the paper proposes using the reservoir area runoff as the original runoff to study the original ecological water demand before the reservoir was built.Tennant Method with amendment of monthly runoff in the typical year was used to compute the downstream ecological water demand.
出处
《浙江水利科技》
2010年第3期7-9,共3页
Zhejiang Hydrotechnics
