【摘要】 为确定浙江省宁波市皎口水库下游樟溪河生态环境流量,利用栖息地法通过结合月光鱼栖息地适宜度分析和二维水力模型流量模拟开展研究。结果表明,考虑月光鱼在不同生长阶段对水流速度和水深的要求,建议水库在鱼的生长期内最低下泄流量不低于2.8 m3/s,并且在繁殖期内每周有1~2天下泄流量达到2 m3/s以上。另外,每年还需要在丰水期有1~2次大于9 m3/s下泄流量的"洪峰"冲刷河床,以保持有一定范围的深水区供鱼类过冬。本研究为栖息地法在南方地区中小型河流的应用提供了实例和参考。更多还原

【Abstract】 To determine the environmentally-friendly flow of Zhangxi River that is located in the downstream of Jiaokou reservoir in Ningbo city,Zhejiang province,habitat modeling that combines suitability analysis of Distoechodon tumirostris and simulation of two-dimensional hydraulic model is carried out. The results showed that,considering of the river depth and flow requirement in different stages of Distoechodon tumirostris,the reservoir discharge should be no less than 2. 8 m3/ s in fish growth period,and no less than 2 m3/ s for 1-2days per week in fish breeding period. In addition,the reservoir discharge should be no less than 9 m3/ s for 1-2 times in abundant water season to maintain a deep water area for fish to pass the winter. This research provided an example and reference for the application of habitat method in small and medium rivers in the south of China.更多还原