👉 In the context of environmental science, defoliations refer to the process by which plants remove their leaves. These processes can occur in a variety of environments, from forests and grasslands to deserts and arid regions. Defoliations can be beneficial for plant growth and reproduction, as they promote the release of nutrients into the soil and help to maintain soil moisture levels. However, defoliations also have negative impacts on ecosystems, such as reducing biodiversity and altering ecosystem structure and function.