水務署2020/21年年報 WSD Annual Report 2020/21

水資源未來的展望 Outlook of Future Water Resources 我們將繼續按照「策略 2019 」的建議， Following the recommended two-pronged approach under the 採取雙管齊下方式，為求在未來建立多 Strategy 2019, we seek to build a diversified portfolio of water 元化的水資源組合。食水資源將約佔香港 resources in future. Fresh water resources will account for about 總用水量 75% ，而非飲用的次階水將佔 75% of the total water consumption in Hong Kong while the lower 其餘用水量 25% 。 grade water for non-potable uses will account for the remaining 25% consumption. 二零一六年至二零二零年全年食水供應量 Annual Quantity of Fresh Water Supply 2016 – 2020 東江水 Dongjiang Water 本地集水 Yield from Hong Kong’s Catchments 百萬立方米 million m 3 996 1 027 278 718 1 013 1 200 1 000 800 600 400 200 0 987 358 629 980 329 651 年份 Year 2016 2017 2018 2019 2020 277 736 225 802 二零一六年至二零二零年日均用量(食水及海水) Total Average Daily Water Consumption (Fresh Water and Salt Water) 2016 – 2020 根據「策略 2019 」預計的香港水資源組合 Estimated Composition of Hong Kong's Water Sources under Strategy 2019 3.57 3.68 0.84 2.73 0.87 2.81 3.54 0.76 2.78 3.41 3.45 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 0.0 0.71 2.70 0.76 2.69 食水 Fresh Water 海水 Salt Water 百萬立方米 million m 3 年份 Year 2016 2017 2018 2019 2020 次階水作非飲用用途 Lower grade water for non-potable use 食水資源 Fresh water resources for potable use 香港總用水量 Total water consumption 淡化海水 Desalinated water 東江水 Dongjiang water 本地集水 Local yield 5% 15-35% 60-80% 循環再用水 Recycle Water 海水 Salt Water 25% 75% 24 水務署 二零二零至二一年年報 全面水資源管理 Total Water Management