Estimation Analysis of Ecological Water Demand in Baoji section of Weihe River
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Abstract:
Study on the river ecological water demand is not only the foundation of optimal allocation of water resources，but also the security to maintain and improve the ecological system and realize the sustainable utilization of water resources. In this paper, on the basis of the conception and component of ecological water demand, the ecological water demand in Baoji section of Weihe River was estimated from the perspectives of ecological base flow, water requirement for sediment transport, and water requirement for self purification, which was 19.01×108 m3. Compared with the upstream water, a big gap in ecological water demand still exists. Therefore, some feasible suggestions were proposed including the increasing of upstream water, water saving and pollution control in the section, and establishment of an effective management system. The research results not only enrich the eco-environmental water demand theory, but also provide an important reference for the eco-environment construction and reasonable utilization of water resources.
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