综合利用砂坝和地下水坝提高韩国春川山区的供水能力

IF 4.7 2区 地球科学 Q1 WATER RESOURCES
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引用次数: 0

摘要

研究地区韩国的一个河谷地区研究重点沙坝是干旱和半干旱气候条件下缺水地区经济有效的蓄水设施,具有减少蒸发损失和过滤污染物的优点。一般来说,沙坝的建造方法是在河床上横放一个水平屏障,在上游形成一个天然的充满沙子的结构。与这种典型建筑不同的是,韩国季风气候区的一座沙坝建在春川市 Mulori 的山谷附近,而不是溪流中,以确保全年持续供水,特别是防止冬季结冰。此外,还在沙坝下游修建了一个小型地下水坝,以提高供水能力,为应对严重干旱做好准备。对该地区水文的新见解对 2020 年 3 月 16 日至 2022 年 7 月 6 日期间的日出水量进行了模拟,模拟了几种混合运行方式,即在正常情况下主要通过沙坝供水,但在应对严重干旱时结合两种水源供水。模拟结果表明,与单独运行沙坝相比,在不同的模拟条件下,混合运行可将最低供水量提高 24.6-50.0 立方米/天,从而满足村庄的用水需求。本研究提出的沙坝和地下水坝的综合利用将有助于为缺水地区,尤其是易受干旱和冰冻影响的山区高地提供可持续供水。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Integrated operation of sand dam and groundwater dam to increase water supply capacity in mountainous areas of Chuncheon, South Korea

Study region

A valley area in South Korea

Study focus

Sand dams are cost-effective water-storage facilities for water-stressed areas in arid and semi-arid climates, with the advantages of reducing evaporation losses and filtering pollutants. Generally, sand dams are constructed by placing a horizontal barrier across the river bed, creating a naturally sand-filled structure upstream. Unlike this typical construction, a sand dam in Korea in the monsoon climate region was built near a mountainous valley, not in a stream, in Mulori, Chuncheon City, to ensure a sustainable water supply throughout the year, and especially to prevent freezing in the winter. Furthermore, a small-scale groundwater dam was additionally constructed downstream of the sand dam to increase the water supply capacity in preparation for severe droughts. In this study, the hydrological reservoir-routing simulations were performed to evaluate the effects of the combined use of the two dams on increasing water supply.

New hydrological insights for the region

Daily discharge rates for the period from March 16, 2020 to July 6, 2022 were simulated for several hybrid operations that supplies water primarily through the sand dam under the normal conditions, but combines both water sources to manage severe droughts. The simulated results showed that, compared with operating the sand dam alone, the hybrid operations could satisfy the village’s water demand by increasing the minimum water supply rates by 24.6–50.0 m³/day for different simulation conditions. The combined use of sand and groundwater dams presented in this study will help provide sustainable water supply in water-stressed areas, especially mountainous uplands vulnerable to droughts and freezes.

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来源期刊
Journal of Hydrology-Regional Studies
Journal of Hydrology-Regional Studies Earth and Planetary Sciences-Earth and Planetary Sciences (miscellaneous)
CiteScore
6.70
自引率
8.50%
发文量
284
审稿时长
60 days
期刊介绍: Journal of Hydrology: Regional Studies publishes original research papers enhancing the science of hydrology and aiming at region-specific problems, past and future conditions, analysis, review and solutions. The journal particularly welcomes research papers that deliver new insights into region-specific hydrological processes and responses to changing conditions, as well as contributions that incorporate interdisciplinarity and translational science.
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