In the past wetlands have been thought of as wastelands. People
either stayed away from them or tried to get rid of them.
Because of this over half of the wetlands in the United States have
been destroyed. But as people begin to understand the value of
wetlands, more of them are being protected or restored.
Wetlands are a valuable natural resource. Wetlands provide
habitat for many animals, help control flooding , improve water
quality, and provide for recreational activities
Wetlands are nature's
nurseries for young birds, mammals, crayfish, fish, frogs,
turtles,
snakes, and aquatic insects. Thick plants cover shallow water,
and this makes a good place to hide young and store food, so the
young can get off to a good start.
Over the years people have forced
many species of animals out of their habitat and have made life
hard and almost impossible. Many conservation groups have
developed various terms to describe animals' distress. Animals
might be extinct if something is not done to protect wetlands which
are valuable habitat for many plants and animals.
Wetlands are breeding grounds for
many kinds of animals such as snakes, fish, birds, deer, trout,
rabbit, mice, and many other animals that live in the
wetlands.
Erosion of
soils is decreased because wetlands hold water during and after a
storm, and the water is released slowly to prevent fast moving water
which causes erosion. Wetland plant life provides important
protection to soil near water bodies by filtering and holding
sediments that would otherwise enter lakes and streams and slowly
fill them. Erosion wears away rock materials by moving them from the
earth's surface. Wetlands benefit us by slowing down water which
prevents us from losing valuable soil.
Flood Prevention
Wetlands make the movement of
storm water slower so there is less run off, and these same wetlands
can provide storage areas for floods. Flood damage can affect the
view, animals, living creatures, fish, humans, food, and water. What
do you think you could do to reduce flood damage? Wetlands hold
back flooding by holding water much like a sponge that you wash
dishes with. Wetlands keep river water levels normal, filter
pollutants, and purify the surface water. Creeks are a part of
wetlands, and they also help the rivers not to flood. The
creeks are like a straining area, or just a plan B for flooding
rivers. Floods cause erosion. Erosion is the
movement of soil because of wind or the movement of water. A flood
makes the water mostly sand and mud. Why do floods come? A lot of
ancient people wondered. Most ancient people believed that a flood
was a punishment sent by the gods. You may think of it as
unbelievable, but water can tear down cities, forests, and
homes. They can kill people very easily, and take families
apart. We all drink water, wash in water, swim in water, and
some things live in water. Two thirds of our earth is water, and it
helps us a lot. Part of water's power comes from its weight and
ability to travel fast. Water is heavy. The heavier it is, the faster
it is. A flood can flow up to 20 miles per hour. The deadliest
flood ever was the China Yellow River. It killed many
people. I think people should do something about floods.
If we didn't have wetlands then a lot more floods would take
place.
Wetlands have two main groups of water quality: filters and flood control.
Filters is the first group of water quality. As water goes out of a wetland it is filtered and most of the bacteria and other harmful substances are cleaned out. Wetlands also filter pesticides, wastes, nitrogen, phosphorous, and agriculture fertilizers. Wetlands can filter because they are calm, and the harmful substances just settle to the bottom. By the slow moving flow of the water, wetlands reduce cloudiness, or turbidity. Plants take out pollutants too. Also pollutants are turned into plant tissue from algae and other plants. Pollutants also turn into peat and mud. Some harmful substances travel to less toxic lakes by wetlands. About 90% of pollutants are removed by wetlands in certain areas. From this, water is safe to drink. Larger wetlands and ones with heavy vegetation make water safest.
The second group of water quality is flood control. After a big
rain a wetland will hold most of the water and slowly release it, so
that grasses and other vegetation don't get flooded. Because of
this, during a drought, they give the extra water to lakes and
rivers. Wetlands are called nature's sponges because of the
extra water that they hold.
Some popular
activities to participate in at wetlands are hunting, fishing,
boating, hiking, canoeing, water skiing, and bird watching.
Some others are natural observation,
photography, and other outdoor recreation. In the United States, 55
million people spent ten billion dollars observing and photographing
waterfowl and other wetland birds. Wetlands provide multi-million
dollar investment of fishing and hunting while you are having
fun!
People appreciate
wetlands very much. What most people like is bird watching and
enjoying the beautiful scenery they provide. For these reasons, many
people want to prevent destruction of wetlands and preserve them.
Despite all of the benefits and recreation that wetlands provide,
people are still destroying them.
By Anthony
This page was created by the Osseo-Fairchild sixth grade students
supported by a Cluster A Goals 2000 Grant.
Created 4/8/l999 Updated
2.8.2001 sdp