Water diversion and allocation for typical confined polder river-net in Taihu Basin
Hydraulic restoration in a confined polder river-net is a new issue under the concept of the Interconnected River System Network (IRSN) proposed by the Ministry of Water Resources (MWR) in China. This paper studies the typical hydrographic connection in the polder, and analyses the current situation...
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| Veröffentlicht in: | Water policy 2020-08, Vol.22 (4), p.561-573 |
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| creator | Xiang, Long Ma, Mengting Jiao, Lihong Liao, Zhengmin |
| description | Hydraulic restoration in a confined polder river-net is a new issue under the concept of the Interconnected River System Network (IRSN) proposed by the Ministry of Water Resources (MWR) in China. This paper studies the typical hydrographic connection in the polder, and analyses the current situation of the hydrographic river-net in the typical area of Subaiwei in Changshu City by setting up a one-dimensional unsteady hydrodynamic model. The best water diversion-allocation schemes in the confined polder river-net are simulated and optimized in various scheduling rules. In order to recover the ability of hydro-connection and stream function, the effects of different scheduling rules and the duration time of water diversion under the ability of pump stations around polder boundary are compared. The results show that the optimized injects can enhance the total flow velocity and the exchange rate is more than 20% on average in various streams. This study is critical for the sustainable utilization of limited clean water in a confined river-net polder, and for quantifying the water ecological recharge for hydrodynamic connection. |
| doi_str_mv | 10.2166/wp.2020.107 |
| format | Article |
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This paper studies the typical hydrographic connection in the polder, and analyses the current situation of the hydrographic river-net in the typical area of Subaiwei in Changshu City by setting up a one-dimensional unsteady hydrodynamic model. The best water diversion-allocation schemes in the confined polder river-net are simulated and optimized in various scheduling rules. In order to recover the ability of hydro-connection and stream function, the effects of different scheduling rules and the duration time of water diversion under the ability of pump stations around polder boundary are compared. The results show that the optimized injects can enhance the total flow velocity and the exchange rate is more than 20% on average in various streams. This study is critical for the sustainable utilization of limited clean water in a confined river-net polder, and for quantifying the water ecological recharge for hydrodynamic connection.</description><identifier>ISSN: 1366-7017</identifier><identifier>EISSN: 1996-9759</identifier><identifier>DOI: 10.2166/wp.2020.107</identifier><language>eng</language><publisher>Oxford: IWA Publishing</publisher><subject>Allocation ; Connectivity ; Data collection ; Drainage ; Flow velocity ; Foreign exchange rates ; Hydraulics ; Hydrodynamics ; Hydrologic cycle ; Polders ; Project management ; Pump stations ; Pumping stations ; Restoration ; River networks ; Rivers ; Scheduling ; Stream functions ; Streams ; Water ; Water diversion ; Water quality ; Water resources ; Water shortages ; Water supply</subject><ispartof>Water policy, 2020-08, Vol.22 (4), p.561-573</ispartof><rights>Copyright IWA Publishing Aug 2020</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c256t-d2ba616c38525ff8798ebeb98be68405fa59bc9d438c2ecb2adabcaac90d422d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27866,27924,27925</link.rule.ids></links><search><creatorcontrib>Xiang, Long</creatorcontrib><creatorcontrib>Ma, Mengting</creatorcontrib><creatorcontrib>Jiao, Lihong</creatorcontrib><creatorcontrib>Liao, Zhengmin</creatorcontrib><title>Water diversion and allocation for typical confined polder river-net in Taihu Basin</title><title>Water policy</title><description>Hydraulic restoration in a confined polder river-net is a new issue under the concept of the Interconnected River System Network (IRSN) proposed by the Ministry of Water Resources (MWR) in China. This paper studies the typical hydrographic connection in the polder, and analyses the current situation of the hydrographic river-net in the typical area of Subaiwei in Changshu City by setting up a one-dimensional unsteady hydrodynamic model. The best water diversion-allocation schemes in the confined polder river-net are simulated and optimized in various scheduling rules. In order to recover the ability of hydro-connection and stream function, the effects of different scheduling rules and the duration time of water diversion under the ability of pump stations around polder boundary are compared. The results show that the optimized injects can enhance the total flow velocity and the exchange rate is more than 20% on average in various streams. This study is critical for the sustainable utilization of limited clean water in a confined river-net polder, and for quantifying the water ecological recharge for hydrodynamic connection.</description><subject>Allocation</subject><subject>Connectivity</subject><subject>Data collection</subject><subject>Drainage</subject><subject>Flow velocity</subject><subject>Foreign exchange rates</subject><subject>Hydraulics</subject><subject>Hydrodynamics</subject><subject>Hydrologic cycle</subject><subject>Polders</subject><subject>Project management</subject><subject>Pump stations</subject><subject>Pumping stations</subject><subject>Restoration</subject><subject>River networks</subject><subject>Rivers</subject><subject>Scheduling</subject><subject>Stream functions</subject><subject>Streams</subject><subject>Water</subject><subject>Water diversion</subject><subject>Water quality</subject><subject>Water resources</subject><subject>Water shortages</subject><subject>Water supply</subject><issn>1366-7017</issn><issn>1996-9759</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2020</creationdate><recordtype>article</recordtype><sourceid>7TQ</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNotkEtLxDAUhYMoOI6u_AMBl9KapG2aLHXwBQMuHHFZbl6YoSY16TjMv7dlXJ174Hz3wEHompKSUc7v9kPJCCMlJe0JWlApeSHbRp5Od8V50RLanqOLnLeEEDERC_T-CaNN2Phfm7KPAUMwGPo-ahhn62LC42HwGnqsY3A-WIOH2JsJSjNUBDtiH_AG_NcOP0D24RKdOeizvfrXJfp4etysXor12_Pr6n5daNbwsTBMAadcV6JhjXOilcIqq6RQlouaNA4aqbQ0dSU0s1oxMKA0gJbE1IyZaolujn-HFH92No_dNu5SmCo7VgvGGZGinVK3x5ROMedkXTck_w3p0FHSzat1-6GbV5t8W_0Bj-xg7g</recordid><startdate>20200801</startdate><enddate>20200801</enddate><creator>Xiang, Long</creator><creator>Ma, Mengting</creator><creator>Jiao, Lihong</creator><creator>Liao, Zhengmin</creator><general>IWA Publishing</general><scope>AAYXX</scope><scope>CITATION</scope><scope>0-V</scope><scope>3V.</scope><scope>7QH</scope><scope>7TQ</scope><scope>7UA</scope><scope>7WY</scope><scope>7XB</scope><scope>883</scope><scope>8BJ</scope><scope>8FK</scope><scope>8FL</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>ALSLI</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BEZIV</scope><scope>BHPHI</scope><scope>BKSAR</scope><scope>C1K</scope><scope>CCPQU</scope><scope>DHY</scope><scope>DON</scope><scope>DPSOV</scope><scope>DWQXO</scope><scope>F1W</scope><scope>FQK</scope><scope>FRNLG</scope><scope>GNUQQ</scope><scope>H96</scope><scope>H97</scope><scope>HCIFZ</scope><scope>JBE</scope><scope>K60</scope><scope>K6~</scope><scope>KC-</scope><scope>L.G</scope><scope>M0F</scope><scope>M2L</scope><scope>M2R</scope><scope>PCBAR</scope><scope>PQBIZ</scope><scope>PQBZA</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope></search><sort><creationdate>20200801</creationdate><title>Water diversion and allocation for typical confined polder river-net in Taihu Basin</title><author>Xiang, Long ; 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This paper studies the typical hydrographic connection in the polder, and analyses the current situation of the hydrographic river-net in the typical area of Subaiwei in Changshu City by setting up a one-dimensional unsteady hydrodynamic model. The best water diversion-allocation schemes in the confined polder river-net are simulated and optimized in various scheduling rules. In order to recover the ability of hydro-connection and stream function, the effects of different scheduling rules and the duration time of water diversion under the ability of pump stations around polder boundary are compared. The results show that the optimized injects can enhance the total flow velocity and the exchange rate is more than 20% on average in various streams. This study is critical for the sustainable utilization of limited clean water in a confined river-net polder, and for quantifying the water ecological recharge for hydrodynamic connection.</abstract><cop>Oxford</cop><pub>IWA Publishing</pub><doi>10.2166/wp.2020.107</doi><tpages>13</tpages><oa>free_for_read</oa></addata></record> |
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| language | eng |
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| source | PAIS Index; EZB-FREE-00999 freely available EZB journals |
| subjects | Allocation Connectivity Data collection Drainage Flow velocity Foreign exchange rates Hydraulics Hydrodynamics Hydrologic cycle Polders Project management Pump stations Pumping stations Restoration River networks Rivers Scheduling Stream functions Streams Water Water diversion Water quality Water resources Water shortages Water supply |
| title | Water diversion and allocation for typical confined polder river-net in Taihu Basin |
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