reed bed
noun [ C ] environment specialized uk/ˈriːd ˌbed/ us/ˈriːd ˌbed/
芦苇地，芦苇滩
a very wet area of reeds and other plants between water and land, which is the natural environment for some birds, insects, and small animals
The reed beds are home to a wealth of bird and water life. 芦苇滩是很多鸟类和水生物的家园。
Hidden in the reed beds we will also find brown frogs, red-bellied toads, and colourful dragonflies. 在芦苇滩中，我们还可以找到棕色的青蛙、红腹锦蟾和色彩斑斓的蜻蜓。
芦苇床（污水处理系统）
a very wet area of reeds through which dirty water is passed so that organisms living there can break down the bacteria, as part of a sewage treatment system
Reed beds are growing in popularity as a natural method for treating effluent. 芦苇床作为一种处理废水的自然方法日益普及。
Five small scale reed beds have been built and these will operate continuously over a minimum 12 months. 已经建造了五个小型芦苇床，这些芦苇床将连续运作至少12个月。
- More examples
- Mallard and pintail ducks seek cover in the reed beds.
- Sedge warblers nest in the reed beds at the water's edge.
- Solid waste is treated and filtered through reed beds before being collected to be sold as fertilizer.
- Reed beds offer a highly effective treatment because bacteria living within the root system breaks down the effluent into water, nitrogen, and carbon dioxide.