摘要
随着黄河流域下垫面条件、进入黄河下游的水沙条件、区域社会经济发展等发生的一系列显著变化,特别是黄河流域生态保护和高质量发展重大国家战略的实施,运用系统思想与方法来研究并实现黄河下游河道滩与槽的协同治理,成为新时代下游河道治理综合提升的重中之重。在将黄河下游河道河流系统划分为3个子系统,即维持河槽基本功能的行洪输沙子系统、保障滩区居民生产生活安全的社会经济子系统、维持滩槽生态环境健康的生态环境子系统的基础上,重点介绍各子系统滩槽协同治理目标厘定以及代表性指标的遴选结果,其中:行洪输沙子系统治理目标代表性指标包括河势稳定控制和河道过流能力指标,社会经济子系统发展目标代表性指标包括下游滩区粮食产量和河道引用水量指标,生态环境子系统治理目标代表性指标包括河道典型断面适宜流量保证率、适宜脉冲流量次数指标。藉此,分别构建了主控因子与各子系统滩槽协同治理目标的驱动-响应关系,提出了黄河下游滩槽协同治理模式下多维治理目标及其主控因子阈值。
With a series of significant changes in the underlying surface conditions,water and sediment conditions entering the lower reaches of the Yellow River and regional social and economic development,especially the implementation of the major national strategy of ecological protection and high⁃quality development in the Yellow River Basin,it has become the top priority in comprehensive control of the downstream river regulation in the new era by applying the idea of system and the method to study and implement synergistic regulation for floodplain and main channel of the Lower Yellow River.The river system in the lower Yellow River was divided into three subsystems of flood discharge and sediment transport subsystem to maintain the basic function of the main channel,social economy subsystem to ensure the production and life safety of beach residents and ecological environment subsystem to maintain the health of the ecological environment of the beach and main channel.On the basis of the three subsystems,the objectives and representative indicators of the sub⁃systems were mainly determined,of which,the representative indicators of flood discharge and sand transport subsystem control objectives included river regime stability and river flow capacity indicators;the representative indicators of ecological environment subsystem control objectives included appropriate flow assur⁃ance rate and appropriate flow pulse times of Huayuankou section and Lijin section;the representative indicators of social and economic sub⁃system control objectives included township grain output and water diversion.The driving⁃response relationship between the main control factors and the objectives of synergistic regulation for floodplain and main channel in each subsystem was constructed respectively and the multi⁃dimension⁃al control objectives and the main controlling factor thresholds under the synergistic regulation mode of the lower Yellow River were proposed.
作者
江恩慧
王远见
田世民
许琳娟
JIANG Enhui;WANG Yuanjuan;TIAN Shimin;XU Linjuan(Key Laboratory of Yellow River Sediment Research,MWR,Zhengzhou 450003,China;Yellow River Institute of Hydraulic Research,YRCC,Zhengzhou 450003,China;Henan Engineering and Technological Research Center of Function Recovery&Maintenance for Reservoirs and Lakes,Zhengzhou 450003,China;Henan Engineering Technology Research Center of Aquatic Eco-Environment,Zhengzhou 450003,China)
出处
《人民黄河》
CAS
北大核心
2020年第9期52-58,150,共8页
Yellow River
基金
国家重点研发计划项目(2018YFC0407400)
国家自然科学基金资助项目(51539004,51709123)
中央级公益性科研院所基本科研业务费专项(HKY-JBYW-2018-03,HKY-JBYW-2020-33)。
关键词
滩槽协同治理
驱动-响应关系
河流系统分类
主控因子
治理目标
系统论
黄河下游
synergistic regulation for floodplain and main channel
driving⁃response relationship
river system classification
main control⁃ling factor
control objective
system theory
Lower Yellow River
