The proportion of actual EWR of the Haihe River during 1999-2002 revealed that the EWU has not been satisfied.
然后计算了1999- 2002年海河实际生态用水比例,表明生态用水一直没有得到满足。
Based on the introduction of the concept and meaning of ecological water requirement (EWR) for reservoirs, the blind number theory was applied to calculate the EWR for the Shuangxi reservoir.
The thyroidal basis of the research methods about EWR directs the reasonable ascertainments of the time scale, space scale and protected projects in research.