Methods to Reduce Urban Runoff · 减少城市径流的方法
| English | 中文 | Pinyin · 拼音 |
|---|---|---|
| Urban runoff/ˈɜːbən ˈrʌnɒf/ | 城市径流 | chéng shì jìng liú |
| Permeable pavement/ˈpɜːməbl ˈpeɪvmənt/ | 透水路面 | tòu shuǐ lù miàn |
| rain garden/reɪn ˈɡɑːdn/ | 雨水花园 | yǔ shuǐ huā yuán |
| green roof/ɡriːn ruːf/ | 绿色屋顶 | lǜ sè wū dǐng |
Taming city rain
- In a paved city, rain has nowhere to soak in.
- It rushes off roofs and roads, flooding streets and rivers.
- But clever design can slow the water down and let it soak in.
- These green solutions reduce urban runoff.
驯服城市的雨
- 在一座铺过的城市里,雨无处可渗入。
- 它从屋顶和道路冲下来,淹没街道和河流。
- 但巧妙的设计能让水慢下来,让它渗入。
- 这些绿色的解决方案减少城市径流。
The runoff problem
- Urban runoff 城市径流 is rainwater that rushes off hard city surfaces.
- With nowhere to soak in, it overwhelms drains and floods streets.
- On the way, it picks up oil, litter, and chemicals.
- All that pollution pours untreated into rivers and lakes.
径流问题
- 城市径流(urban runoff)是从坚硬的城市表面冲下来的雨水。
- 无处可渗入,它让下水道不堪重负,淹没街道。
- 一路上,它捡起油、垃圾和化学品。
- 所有那些污染未经处理就涌进河流和湖泊。
Why is urban runoff a problem? · 城市径流为什么是个问题?
Fast · 快速 runoff from paved cities floods streets and washes oil, litter, and chemicals into waterways. · 来自铺过的城市的快速径流淹没街道,把油、垃圾和化学品冲进水道。
Let the water soak in
- Permeable pavement 透水路面 has gaps that let rain soak through into the soil.
- A rain garden 雨水花园 is a planted dip that collects and absorbs runoff.
- Both slow the water and let the ground filter it.
- Instead of flooding, the rain recharges the groundwater.
让水渗入
- 透水路面(permeable pavement)有缝隙,让雨渗过进土壤。
- 一个雨水花园(rain garden)是一个种了植物的洼地,收集并吸收径流。
- 两者都让水慢下来,让地面过滤它。
- 雨不再造成洪水,而是补充地下水。
Permeable pavement helps because it… · 透水路面有帮助,因为它……
Permeable pavement has gaps that let rainwater soak into the soil instead of running off. · 透水路面有缝隙,让雨水渗入土壤,而不是径流。
A planted, low area designed to soak up stormwater is called a rain . · 一片种了植物的、设计用来吸收雨水的低洼区域,叫做雨水。
A rain garden collects runoff and lets plants and soil absorb it, reducing flooding and pollution. · 一个雨水花园收集径流,让植物和土壤吸收它,减少洪水和污染。
Greening the city
- A green roof 绿色屋顶 is a rooftop planted with vegetation.
- Its plants soak up rainwater and shade the building.
- This cuts runoff and also eases the urban heat island.
- Trees and green spaces do the same across a whole city.
让城市变绿
- 一个绿色屋顶(green roof)是一个种了植物的屋顶。
- 它的植物吸收雨水,给建筑遮阴。
- 这减少径流,也缓解城市热岛。
- 树木和绿色空间在整座城市里做同样的事。
Helps or worsens runoff? · 帮助还是加剧径流?
Sort each urban feature by whether it reduces or increases stormwater runoff. · 按照每个城市特征是减少还是增加雨水径流,给它们分类。
Green roofs, planted with vegetation, help absorb rainwater and cool buildings. · 种了植物的绿色屋顶,帮助吸收雨水并给建筑降温。
A green roof's plants soak up rain and shade the building, reducing both runoff and heat. · 一个绿色屋顶的植物吸收雨,给建筑遮阴,减少径流和热量两者。
Select all · 所有 methods that reduce urban runoff. · 选出减少城市径流的所有方法。
Solid concrete increases runoff. The other three all reduce it. · 坚硬的混凝土增加径流。其余三种都减少它。
These methods work by copying nature's way of handling rain: letting it soak into soil and plants instead of shedding it off hard surfaces. The more a city acts like a forest — with permeable ground and greenery — the less it floods. Fighting runoff means bringing nature back into the city.
这些方法通过模仿大自然处理雨的方式来起作用:让它渗入土壤和植物,而不是从坚硬的表面把它甩掉。一座城市越像一片森林——有透水的地面和绿植——它就越不容易被淹。对抗径流意味着把大自然带回城市。
A car park that drinks the rain:
- A normal concrete car park sends every drop of rain rushing into the drains.
- Rebuilt with permeable pavement, the same car park lets the rain soak straight through.
- The water refills the groundwater instead of flooding the street — the same land, a very different outcome.
一个喝雨的停车场:
- 一个普通的混凝土停车场把每一滴雨都冲进下水道。
- 用透水路面重建后,同一个停车场让雨径直渗过。
- 水补充地下水,而不是淹没街道——同样的土地,非常不同的结果。
Urban runoff floods streets and pollutes rivers because paved cities shed rain fast. Solutions let water soak in instead: permeable pavement, rain gardens, and green roofs all absorb rainwater, reduce flooding and pollution, and recharge groundwater — by making the city behave more like nature.
城市径流淹没街道、污染河流,因为铺过的城市快速把雨甩掉。解决方案让水渗入:透水路面、雨水花园和绿色屋顶都吸收雨水、减少洪水和污染、补充地下水——通过让城市表现得更像大自然。