Question

list any four cause of degrdation of wetland​

Answer 1

Explanation:

Human activities cause wetland degradation and loss by changing water quality, quantity, or flow rates; increasing pollution and change the make-up of species within a habitat. These changes occur when wetland ecosystems are disturbed and/or non-native species are introduced to a habitat.

Answer 2

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Cause of degrdation of wetland

• Depositing fill materials (such as mud) for land development

• Draining wetlands of water in order to develop the land for housing or commercial use, for farming or for mosquito control

• Damming wetlands to create ponds or lakes, or creating levees that cut off wetland water flow

• Diverting the flow of water to or from wetlands

• Adding man-made surfaces like cement which increases runoff pollution into wetlands.

Pollution

• Although wetlands do reduce runoff by absorbing some pollutants from surface water, there is a limit to how much they can take in. The main pollutants that cause damage to wetlands are sediment, fertilizer, human sewage, animal waste, road salts, pesticides, heavy metals, and selenium.

Vegetation Damage

• Wetland plants can suffer as a result of both pollution and hydrologic changes. Some other ways wetland plants can be damaged are:

Cattle and other livestock grazing

Introduction of non-native plants that compete with native plants

Removal of plants in order to use land for other purposes