辽河干流河道生态需水量研究  

Study of ecological water requirement in the main stream of Liao River of China

作　　者：康萍萍[1] 周林飞[1] 李波[1] 孙佳竹 

机构地区：[1]沈阳农业大学水利学院,辽宁沈阳110161 [2]辽宁省水文水资源勘测局铁岭分局,辽宁铁岭112000

出　　处：《水资源保护》2011年第3期11-15,共5页Water Resources Protection

基　　金：国家自然科学基金(50879046)

摘　　要：从辽河生态系统基本特征出发,将辽河干流生态需水量分为生态基流量、稀释自净需水量、输沙需水量和蒸发量4个部分;通过6个重要水文断面实现生态需水分区;生态用水过程按汛期和非汛期分别计算;生态需水整合分为类型整合与分区内整合,类型整合中的消耗型需水采用累加原则,非消耗型需水采用取大原则,分区内整合在类型整合的基础上采用分区贡献法;最终建立了辽河干流生态需水分区分期整合计算模型。计算结果表明:辽河干流生态需水量在汛期以输沙需水量为主,非汛期以生态基流量为主;干流汛期和非汛期来水量不足,需要区间补给才能满足河道生态需水量。The ecological water requirement of the main stream of Liao River was classified as the ecological basic flows,the water requirement for self purification,water requirement for sediment transport and water consumption in evaporation.The subdivision of ecological water requirement was achieved by using six major hydrological sections.The ecological water utilization could be computed for flood season and non-flood season separately.The conformity of ecological water requirement of the main stream of Liao River could be classified as type conformity and conformity in region.The calculation of consumptive water requirement was followed the additive principle and non-consumptive water requirement followed the maximum principle.The contribution method was used in sub-regional conformity district.A conformity model computing ecological water requirement by regions and stages for main stream of Liao River was developed.The calculated results showed that the ecological water requirement in the main stream of Liao River was subject to water requirement for sediment transport in flood season and ecological basic flows in non-flood season.The water in flood and non-flood seasons was deficient and needed to be recharge to meet the ecological water requirement in the main stream of Liao River.

关 键 词：辽河干流 生态需水量 类型整合 

分 类 号：TV213.4[水利工程—水文学及水资源]