The green zone along a stream ecosystem is called a riparian area
and has several unique properties. Riparian zones have the capacity to
buffer rivers and other waters from runoff from agricultural, urban, or
other areas. Healthy riparian zones can absorb sediments, chemical
nutrients, and other substances contained in runoff.
Riparian areas provide all the components needed for a wildlife
habitat including food, water, and cover. Diversity of organisms living
in these wetland areas is very high. A riparian habitat includes three
areas depending on the influence of water. The aquatic area refers to
the area that is the stream channel or pond. The organisms that live in
this area must be adapted to a wet lifestyle. Not far from the banks of
the water is an area referred to as the riparian area which are
organisms that require a moist habitat. Many plants require their roots
to be moist. A transition area between a riparian area and upland cover
is called an area of influence. Moisture decreases as you move away from
the water.
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