Macrophytic plants provide mediums for microorganisms and transfer oxygen by leaves and stems into roots.They also fix wetland surface, which can support ice layer and insulate heat.

• 大型湿地植物既是微生物的“固定化载体”，氧气的生产和运输“机器”，同时还能够稳固湿地床表面，起到冬季保温和支撑冰面的作用。