| Popis: |
According to the characteristics of north river, this paper used the minimum monthly average runoff method, the environmental function setter method and the annual average sediment concentration method to calculate the eco-environmental water requirement of mainstream of River Dalinghe. The results showed that: the non-consumptive water requirement was 4.46×108m3 for Shangwobao Station, 8.87×108m3 for Chaoyang Station, 13.96×108m3 for Yixian Station and 7.26×108m3 for Linghai Station per year; the evaporative water requirement was 0.019×108m3, and the leakage water requirement was not taken into account in the consumptive water requirement. The eco-environmental water requirement of mainstream of River Dalinghe can not be satisfied basically, the management department should control the disposal of sewage strictly for it. |
