The Pearl River estuary

The ecological embankment at the tip of Lingshan Island can be regarded as a model of this transformation. This continuous stretchThe 6.8-kilometer, 100 meter wide ecological corridor, with exquisite multi-level buffering design, transforms the 200 year flood control standard into a pleasant waterfront experience. When the 8.5-meter-high tide strikes, traditional dams often form oppressive "water city walls", while the gentle slope design here allows the kinetic energy of floods to naturally dissipate like waves hitting sand. The permeable pavement system allows for immediate infiltration of 30% of the runoff, which not only relieves drainage pressure but also replenishes groundwater sources. This design philosophy of 'flood control is landscape' completely breaks the traditional boundaries between water conservancy projects and urban space.

The wisdom of Nansha is more reflected inThe Big Sponge+small spongeThe "Big Sponge" system builds a flood prevention framework with the pumping station's strong drainage capacity of 20 cubic meters per second, while the "Small Sponge" system achieves fine adjustment through permeable pavement and rain gardens all over the city. In the test of "double typhoons" in 2023, this system shows amazing resilience - the water is completely drained within 24 hours after the 300 mm rainstorm, and the main trunk roads are always unblocked. What's more, all drainage facilities are perfectly integrated with the landscape, and citizens can hardly feel their operation as the "urban kidney" in leisure.

Nansha District, GuangzhouLingshan Island Point

In the agricultural town of Wanqingsha, flood control strategies demonstrate another kind of wisdom.26 intelligent pumping stations and over 300 temporary drainage points form a dynamic regulation network, achieving precise water level pre control through IoT technology. In the flood season of 2023, this system will build an invisible defense line for 25000 tons of aquatic products and 10000 acres of orchards, turning "floods" into "water conservancy". This differentiated flood control strategy between urban and rural areas reflects the governance wisdom of "adapting to local conditions and following the trend" in Nansha.

The promulgation of the "Technical Regulations for Sponge City Construction in the Guangdong Hong Kong Macao Greater Bay Area" marks the elevation of Nansha practice to a regional standard. Creatively proposing regulationsThe new concept of prioritizing "stagnation, storage, and purification" over "discharge" emphasizes the coordinated design of ecological facilities and hydrological rhythms, especially in response to the significant tidal characteristics of the Greater Bay Area. Nowadays, Lingshan Island not only has outstanding flood control capabilities, but also attracts flocks of egrets due to improved water quality, becoming a rare urban wetland ecological specimen in the Greater Bay Area.

Lingshan Island Jian Ecological Embankment, Nansha District, Guangzhou

From engineering flood control to ecological flood control, Nansha has not only achieved technological upgrades, but also a revolution in urban governance paradigms. Here, flood control facilities are no longer cold concrete barriers, but vibrant ecological corridors; The drainage system not only pursues drainage efficiency, but also pays more attention to the sustainability of the water cycle. Behind this transformation isA profound understanding of 'urban resilience' - true safety is not about shutting nature out, but learning to dance with it.

When coastal cities around the world are striving forSea level riseWhen anxious, the practice in Nansha has pointed out a new path: using ecological wisdom to resolve climate risks and making flood control projects an opportunity to improve urban quality. On this young land, what people see is not only solutions to extreme weather, but also a future urban landscape of harmonious coexistence between people and water. With the wind and waves at the the Pearl River Estuary pounding the coastline year after year, Nansha's ecological defense line is writing a vivid footnote of Chinese path to modernization with its unique flexibility and toughness.