Knowledge

How wetlands are formed?

A wetland is an area of land that is either covered by water or saturated with water. Wetlands form on floodplains where periodic flooding or high water tables provide sufficient moisture. These “riparian” wetlands may undergo constant change as rivers and streams form new channels and when floods scour the floodplain or deposit new material. The water is often groundwater, seeping up from an aquifer or spring. A wetland’s water can also come from a nearby river or lake.

Environmental Functions of Wetlands

Invasive Species

What is Eutrophication?

Excessive richness of nutrients in a lake or other body of water, frequently due to run-off from the land, which causes a dense growth of plant life. Eutrophication can have serious effects, like algal blooms that block light from getting into the water and harm the plants and animals that need it. If there’s enough overgrowth of algae, it can prevent oxygen from getting into the water, making it hypoxic and creating a dead zone where no organisms can survive.

Effects

Abundance of particulate substances (phytoplankton, zooplankton, bacteria, fungi and debris) that determine the turbidity and colouration of the water;

abundance of inorganic chemicals such ammonia, nitrites, hydrogen sulphide etc. that in the drinking water treatment plants induce the formation of harmful substances such as nitrosamines suspected of mutagenicity

Abundance of organic substances that give the water disagreeable odours or tastes, barely masked by chlorination in the case of drinking water. These substances, moreover, form complex chemical compounds that prevent normal purification processes and are deposited on the walls of the water purifier inlet tubes, accelerating corrosion and limiting the flow rate

  • The water acquires disagreeable odours or tastes (of earth, of rotten fish, of cloves, of watermelon, etc.) due to the presence of particular algae
  • Disappearance or significant reduction of quality fish with very negative effects on fishing (instead of quality species such as trout undesirable ones such as carp become established)
  • Possible affirmation of toxic algae with potential damage to the population and animals drinking the affected water
  • Prohibition of touristic use of the lake and bathing, due to both the foul odour on the shores caused by the presence of certain algae, as well as the turbidity and anything but clean and attractive appearance of the water; bathing is dangerous because certain algae cause skin irritation
  • Reduction of oxygen concentration, especially in the deeper layers of the lake at the end of summer and in autumn.

What is Phytoremediation?

Use of green plants and their microorganisms that associate with their roots, for cleaning up heavy metals and other contaminants in soil and water which pollute the environment. It is a natural mechanism that uses plants to remove, transfer, stabilize, and/or destroy contaminants.

“Phyto- Plant
Remediation – Treatment for environmental damage”

“Wetland” Facts

When a Pelican Overheats it Pulls its Spine Out of its Mouth!!

Did you know that a pelican (some other birds too) can pull their spines out of their mouths! They do this whenthey start to overheat as a way to cool themselves down .This is just one of the ways that they have adapted to control their body heat.
Another scary fact about our friends the pelican, they don’t eat just fish. They also eat amphibians, crustaceans,turtles, and… other birds. As long as it can fit down their throat they will eat it.Which means they are kind of cannibalistic.
Pelicans are over 30 million years old according to the oldest finding.The earliest pelican fossil on record is a 30-million-year-old skull that was found in the Oligocene deposits of France. And there are now eight living species which you can find everywhere but not in Antarctica because even if they like to keep cool, that’s a bit too cold.

Wetlands can be a source of clean water.

For many countries, wetlands (places where water covers soil, such as Rice Fields) provide sources of food and water, transport links, sanitation and important nutrients for soils.
Did You Know that Wetlands are found on every continent except Antarctica.

What do you think this pink bubble material is?