随着新时期南水北调后续工程的高质量发展，首批建设工程引江补汉工程正式开工，为支撑未来南水北调 中线水源工程与引江补汉工程的联合协调运行，根据引江补汉工程设计参数，提出多组丹江口水库与引江补汉工 程联合调度方式，并模拟分析得到引江补汉工程实施后南水北调中线水源工程可调水量具有重要意义。研究结 果表明：设置引江补汉工程补水水位控制线、同步优化陶岔渠首引水调度线，充分利用引江补汉工程补水来满足 汉江中下游用水需求，从而置换更多坝前水量引至陶岔渠首、清泉沟等用水需求方，可在一定程度上实现丹江口 水库供水与引江补汉工程补水决策的有效衔接；相比于中线一期工程现状供水调度情景，采用合适的引江补汉工 程与中线水源工程联合调度方式，可在保障汉江中下游用水量需求的同时，满足下游断面最小用水量达标率至 98.9%~99.2%，并提高中线受水区可供水量 17.7 亿~25.8 亿 m3，继而有效协调中线水源工程的中线受水区、清泉沟 渠首及汉江中下游等多方用水需求。

The ?Middle ?Route ?of ?South-to-North ?Water ?Transfers ?Project ?(MRSWTP) ?is ?a ?major ?strategic infrastructure?to?alleviate?the?serious?shortage?of?water?resources?in?northern?China.?The?first?phase?of?the?MRSWTP has?been?put?into?operation?since?2014.?By?the?8th?anniversary?of?the?operation?of?the?MRSWTP?on?December?12, 2022,?the?cumulative?water?inflow?from?the?head?of?the?Taocha?Canal?has?exceeded?53?billion?m 3,?with?a?direct beneficiary?population?of?more?than?85?million?people.?Thus,?the?completion?and?operation?of?the?Middle?Route?of South-to-North?Water?Transfers?Project?(MRSWTP)?have?significantly?improved?the?water?resources?conditions?and water?supply?guarantee?degree?of?the?cities?in?the?water?receiving?area?of?the?middle?route,?and?achieved?great?social and?economic?benefits.?In?the?face?of?the?needs?of?the?national?development?strategy?in?the?new?era,?the?supply?and demand ?sides ?of ?the ?water ?resources ?allocation ?of ?the ?MRSWTP ?have ?changed. ?On ?the ?one ?hand, ?with ?the coordinated?development?of?Beijing-Tianjin-Hebei?and?the?construction?of?Xiong'an?New?Area,?the?water?supply objects?and?scope?of?the?MRSWTP?have?been?expanded?and?adjusted,?and?the?water?transferred?from?the?MRSWTP has?become?the?main?water?source?of?large?and?medium-sized?urban?areas?along?the?Beijing-Tianjin-Hebei?line.?The current?change?of?water?supply?situation?puts?forward?new?water?transfer?requirements?for?the?MRSWTP?in?terms?of water?quantity?and?water?supply?guarantee.?On?the?other?hand,?the?inter-annual?variation?of?the?incoming?water?from the?Hanjiang?River?basin?is?large,?which?has?affected?the?water?supply?guarantee?of?the?Danjiangkou?Reservoir.?With the?commencement?of?the?construction?of?the?water?diversion?project?from?Three?Gorges?Reservoir?to?Hanjiang River?(WDP-TH),?it?is?very?necessary?to?carry?out?the?research?on?the?joint?operation?mode?of?the?Danjiangkou Reservoir?and?the?WDP-TH. ??????Based ?on ?the ?design ?parameters ?of ?the ?WDP-TH, ?the ?adjustable ?water ?volume ?of ?the ?MRSWTP ?after ?the implementation?of?the?WDP-TH?is?analyzed?and?four?research?schemes?are?put?forward?as?follows:?(1)?Scheme?1, the?current?water?supply?operating?scenario?of?the?Danjiangkou?Reservoir,?which?is?the?benchmark?scheme;?(2) Scheme?2,?the?WDP-TH?starts?to?transfer?water?when?the?reservoir?release?can?not?satisfy?the?minimum?discharge flow?requirements?of?the?downstream?section;?(3)?Scheme?3,?the?water?transfer?control?line?of?the?WDP-TH?is?added in ?the ?water ?supply ?operating ?curves ?of ?the ?Danjiangkou ?Reservoir, ?and ?water ?transfers ?rules ?of ?Taocha ?are optimized?synchronously;?and?(4)?Scheme?4,?the?WDP-TH?continuously?transfers?water?to?the?middle?and?lower reaches?of?the?Hanjiang?River?throughout?the?year,?and?the?transfers?flow?of?the?Taocha?is?420?m3/s. ??????The?results?show?that?the?effective?connection?between?the?water?supply?of?Danjiangkou?Reservoir?and?the?water supply?decision?of?the?water?transfers?project?can?be?realized?by?two?schemes,?i.e.,?Scheme?3?and?Scheme?4,?both?of which?can?effectively?use?the?water?transfers?of?the?WDP-TH?to?increase?the?available?water?supply?volume?of?the MRSWTP?(the?increment?is?1.77?billion?m3?to?2.58?billion?m3.)?and?reduce?the?reservoir?waste?water?(the?decrease?is 10.5?billion?m3?to?14.8?billion?m3)?on?the?premise?of?ensuring?the?water?demand?of?the?middle?and?lower?reaches?of the?Hanjiang?River. ??????This?research?can?provide?technical?support?for?the?adjustment?of?the?water?transfer?mode?of?the?MRSWTP?after the?completion?of?the?WDP-TH?in?the?future,?and?realize?effective?connection?between?the?above?two?projects.