海綿城市 are urban areas that use sustainable systems to soak up rainwater. This helps prevent flooding and makes cities more resilient to climate change. With 700 million people living in areas hit by more extreme rain, these cities are crucial.
海綿城市:奧克蘭 35% 海綿化
Cities like Auckland are at the forefront, with their smart stormwater systems and green spaces. Auckland has a “sponginess” of 35%, showing it’s a leader in this field.
海綿城市 are more than just an idea; they’re a real solution to climate change. By using green roofs and permeable pavements, cities can fight flooding and improve water quality. Studies by Arup and the World Economic Forum show that nature-based solutions are cheaper and more effective.
關鍵要點
海綿城市 是包含以下元素的城市地區 永續城市排水系統 吸收雨水,防止洪水。
目前有 700 億人生活在極端降雨增加的地區,海綿城市成為 氣候適應力.
奧克蘭、內羅畢、紐約等城市在海綿城市建設方面處於領先地位,其中奧克蘭的海綿化程度達到35%。
基於自然的解決方案比人造解決方案便宜約 50%,效率高約 28%。
The construction of Sponge Cities is estimated to require around $230 billion by 2030.
The goal set by China’s central government is for 80% of urban spaces to include Sponge City adaptations by 2030, with the requirement to recycle at least 70% of rainfall.
海綿城市的理念重點在於 水管理 以及 綠色基礎設施. It aims to lessen urban flooding’s impact. By using natural and semi-natural systems, cities can lower flood risks and enhance life quality.
Adopting sponge city practices helps cities face flooding’s economic and social impacts. It also boosts residents’ health and well-being. As more people move to cities, the need for 水管理 以及 綠色基礎設施 會成長
In cities like Wuhan, over 380 sponge projects have made the air cleaner and brought more wildlife. Lingang New City uses special bricks to stop water from pooling. They’ve also covered 200 hectares of homes with green roofs.
Enhanced urban biodiversity through the provision of new habitats
改善空氣品質並減少城市炎熱
For example, Shenzhen and Shanghai have seen big changes. They’ve used rainwater harvesting and permeable pavements. This has greatly reduced flooding.
打造海綿城市需要良好的 城市規劃. This means designing cities carefully, setting up the right infrastructure, and linking it with current systems. This helps manage stormwater and lowers flood risks. 防洪 與硬質路面相比,透水性路面和綠色屋頂等階梯可以減少地表徑流約 90%。
地下水補給 is key in sponge cities. Adding green spaces and water bodies to city designs helps recharge groundwater. This method not only manages stormwater but also boosts biodiversity and species variety.
由於技術、資金和政策障礙,創建海綿城市十分困難。好的 城市規劃 is key to beat these challenges. China’s fast urban growth has made flooding worse, with over 60% of cities facing floods.
許多國家都在投資 水管理 for a sustainable future. China’s sponge city projects aim to cut flooding and improve water quality. They also create green spaces and support urban renewal. Australia and the UK are following suit, adding 綠色基礎設施 他們的計劃。
Creating sponge cities needs careful planning. It involves designing and integrating with existing infrastructure. Success often comes from good policy, finance, and community support.
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