How does exactly planting trees helps the environment? Is it possible that planting too many trees without planning it carefully would lead to bad consequences?

Question

How does exactly planting trees helps the environment? Is it possible that planting too many trees without planning it carefully would lead to bad consequences?

In: Biology

Answer 1

The only bad aspect is water usage, but that can be overcome by using trees suited to the climate (at minimum) or planting indigenous trees.

For example, there are loads of Australian blue gum (Eucalyptus) trees in South Africa, but they use a lot of water. They dry up riverbeds in some areas.

But most tree-planting initiatives would probably plant indigenous trees and keep their water usage in mind.