DENDROLOGY

Detailed explanation-1: -Logging removes large trees that normally fall into streams and provide shelter and thermal cover, raises water temperatures and pH, and degrades the chemical and ecological conditions and food webs that fish need to survive.

Detailed explanation-2: -Selective logging is more sustainable than clear-cutting because other trees and plants do survive in the logging process and over time can allow the forest to recover. However, it does have major drawbacks. Although single trees are felled because they are valuable, other trees can be damaged in the process.