地理漫步·世界地理英语30篇（4）

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新加坡：热带岛国城市的水资源管理

Singapore imports 40% of its water from Malaysia, making self-reliance a national priority.
Four national taps—imported water, local catchment, recycled NEWater, and desalination—ensure supply.
Roof gutters and park drains feed 17 reservoirs, turning two-thirds of the island into catchment.
NEWater uses microfiltration, reverse osmosis, and UV disinfection to purify wastewater.
Desalination plants run partly on solar power to cut energy-related emissions.
Water pricing reflects scarcity, encouraging industrial users to recycle over 80% of process water.
School curricula include hands-on lessons on watersheds and water footprint calculations.
Floating solar farms on reservoirs generate clean energy without competing for land.
Real-time sensors detect pipe leaks and predict demand spikes using AI analytics.
Regional cooperation includes joint studies on Mekong Delta salinity intrusion affecting shared aquifers.