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用90%最枯月法和最小月流量平均法计算大富水最小生态需水量,得到值分别为74.4×106m~3/a,73.1×106m~3/a,用Tennant法检验结果合理性,两值均在Tennant(10%)、Tennant法(20%)之间,即最小流量值满足退化的或者贫瘠的栖息地条件,同时离保护水生生物栖息地标准有一定的差距。根据大富水枯期多年来水情况,将两者计算结果平均值73.8×106m~3/a作为大富水最小生态需水量。Calculation of
The minimum ecological water requirement of Dafu water was calculated by the method of 90% of the wettest month and the average of the minimum monthly flow rate. The obtained values were 74.4 × 106m 3 / a and 73.1 × 106m 3 / a, respectively. The results were verified by Tennant method. Values are between Tennant (10%) and Tennant (20%), ie minimum flow rates meet degraded or barren habitat conditions, while at the same time there is a certain gap from the criteria for the protection of aquatic habitats. According to the water conditions of Dafu water during the dry season, the average of the two calculated results is 73.8 × 106m ~ 3 / a as the minimum ecological water requirement of Dafu water. Calculation of