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Back高雄越域引水效益驚人 挹注南化水庫近9成蓄水量並反向送水烏山頭
高雄越域引水效益驚人 挹注南化水庫近9成蓄水量並反向送水烏山頭
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高雄越域引水效益驚人 挹注南化水庫近9成蓄水量並反向送水烏山頭

En resumen

高雄越域引水自6月4日以來挹注南化水庫2884萬立方公尺,使南化水庫蓄水率逼近9成,幾乎全來自越域引水。水利署並啟動反向送水至烏山頭水庫,一次連灌兩座水庫,穩定南部用水。

Resumen generado por IA

Por qué importa

今年初降雨不如預期,南化水庫蓄水率一度下探21%。高雄地區受到梅雨鋒面及西南氣流影響,山區豪雨不斷,旗山溪流量大增。

Tamaño de fuente

高雄越域引水有多猛?水利署證實自6月4日梅雨鋒面降雨迄今,高雄越域引水挹注南化水庫2884萬立方公尺,南化水庫本流入流量只有3696立方公尺,今夜南化水庫蓄水率逼近9成,等於幾乎來自高雄越域引水,還反向送水烏山頭水庫,一次連灌2座水庫。

高雄與台南共用南化水庫,今年初降雨不如預期,蓄水率一度下探21%,最低蓄水量1710萬噸,在高雄越域引水連日來猛灌下,今夜蓄水率逼近9成,提升至87.67%,蓄水量續升至7172萬立方公尺。

高雄自6月4日以來接連受到梅雨鋒面、西南氣流、西南風、午後對流雲系發展旺盛等接力或交互影響,山區豪雨狂炸,甚至達大豪雨等級,帶動旗山溪流量大增突破200cms。

高雄昨天降雨趨緩,旗山溪流量下探每秒146立方公尺,目前高水位流量充足,水利署持續從甲仙堰滿載越域引水250萬立方公尺,挹注南化水庫蓄水量。

根據水利署統計,自6月4日梅雨鋒面挾帶雨勢迄今,高雄從旗山溪甲仙攔河堰越域引水量超過2884萬立方公尺;南化水庫自6月4日受梅雨鋒面影響降雨以來,因集水區僅104平方公里不大,本流入流量只有3696立方公尺,等於南化水庫蓄水量幾乎來自高雄越域引水。

此外,水利署看準旗山流量豐沛,昨啟動南化水庫反向送水至烏山頭水庫,連2日均挹注20萬立方公尺,希望增加烏山頭水庫蓄水量,減少曾文水庫出水量,儘量把水留在水庫裡,穩定南部用水。

Preguntas abiertas

  • 未來降雨是否能持續維持高蓄水率?
  • 越域引水對高雄旗山溪生態影響?

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This article was originally published by 自由时报.

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