| 浅水湖泊洪水资源适度开发规模优选模型 |
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| 引用本文： | 王宗志,刘克琳,刘友春,程亮,叶爱玲.浅水湖泊洪水资源适度开发规模优选模型[J].水科学进展,2020,31(6):908-916. |
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| 作者姓名： | 王宗志 刘克琳 刘友春 程亮 叶爱玲 |
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| 作者单位： | 南京水利科学研究院水文水资源与水利工程科学国家重点实验室, 江苏 南京 210029;水发规划设计有限公司, 山东 济南 250100 |
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| 基金项目： | 国家重点研发计划资助项目（2017YFC0403504）；山东省级水利科研项目（SDSLKY201809） |
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| 摘 要： | 在保障防洪与河湖生态安全的前提下，将汛期洪水尽可能多地蓄存起来以满足当前及未来一段时间的河道外用水需求，是浅水湖泊洪水资源利用所追求的目标。为综合考虑区域来水和需水不确定性、潜在储水空间和利用方式，合理确定洪水资源开发规模，采用模拟与优化相结合的方法，建立了浅水湖泊洪水资源适度开发规模优选模型，并将该模型应用于南四湖。研究结果表明:以滨湖反向调节利用方式为主的浅水湖泊洪水资源开发规模，受制于泵站启动水位、抽水能力和河道外蓄水空间的共同作用，但并不呈现线性关系，存在明显的阈值效应；南四湖洪水资源开发的适度规模为多年平均全年3.63亿m3、汛期1.56亿m3，开发条件是泵站启动水位为33.75 m、泵站抽水能力为48 m3/s、区域蓄水体容积为4.80亿m3。研究可为确定南四湖洪水资源利用规模提供依据，为类似流域提供借鉴和参考。
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| 关 键 词： | 洪水资源利用 适度性评价 汛限水位 多目标优化 南四湖 |
| 收稿时间： | 2019-12-17 |
Optimizing the moderate size using floodwater in a large-scale shallow lake |
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| Affiliation: | 1.State Key Laboratory of Hydrology-Water Resources and Hydraulic Engineering, Nanjing Hydraulic Research Institute, Nanjing 210029, China2.Shandong Survey and Design Institute of Water Conservancy, Jinan 250100, China |
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| Abstract: | Storing as much floodwater as possible to meet the current and near future off-stream water demand on the premise of ensuring flood control and river ecological security, is the goal of the shallow lake floodwater utilization. For considering the uncertainties of inflows, potential water storage space and utilization patterns and determining the reasonable size of floodwater utilization, a method of combining simulation and optimization was used to establish an optimal model for moderate floodwater utilization sizes of shallow lake basins, and the model was applied in the Nansi Lake. The results shows that:① Utilization scales of shallow lakes in which utility patterns are mainly shores reverse regulation are limited by triggering water levels and capacities of pumping stations and off-stream water storage space. This limitation reflects obvious threshold effect instead of linear relation. ② The moderate size of lake basin-wide floodwater utilization is 363 million cubic meters per year and 156 million cubic meters in a flood season on a multi-year average while the pumping capacity is 48 meter per second and the trigging water level is 33.75 meters, the needed off-stream storage size is 480 million cubic meters. This study can provide a basis for the determination of the utilization size of Nansi Lake floodwater utilization and also a reference for the development of flood resources in other similar basins. |
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