本地集水 儘管山多地少，香港的雨水收集和貯存設施完備且覆蓋範圍廣 泛。為避免水源受污染，本地雨水收集的集水區絕大部分處於 郊野公園範圍並受嚴格規管。我們以多重屏障如妥善管控各集 水區的發展、定期在水源作抽樣檢查及監測水質的情況，以確 保水質安全。 Local Yield Despite the undulating terrain, Hong Kong has developed an extensive rainwater collection and storage system. The local yield is collected in catchment areas, most of which fall within the country parks that are well regulated and protected from contamination. We adopt a multiple barrier approach to control development, regularly conduct inspections and monitor water quality to ensure water safety. 二零一九至二零二三年全年降雨量 Annual Rainfall 2019 – 2023 毫米 millimetres 3 000 2 500 2 000 1 500 1 000 500 0 年份 Year 2019 2 396 2020 2 395 2021 2 307 2022 2 205 2023 2 775 註：長期平均降雨量為2 431 毫米 Note : Long-term mean rainfall is 2 431 mm 二零一九至二零二三年全年淨集水量 Annual Net Yield 2019 – 2023 毫米 millimetres 300 200 200 150 100 50 0 年份 Year 2019 272 2020 215 2021 202 2022 288 2023 2611 1 受二零二三年九月極端暴雨的影響，水塘的水量溢出，導致淨集水量下降。 Decreasing net yield due to the overflow at reservoirs caused by the extreme rainfall events in September 2023. 48 水務署 二零二三至二四年年報 WSD Annual Report 2023/24 Enhance 提升 Menu 目錄
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