Landscaping trees and plants is essential to reducing water pollution by preventing nutrient-rich top soil and harmful chemicals from running off into streams, rivers and lakes. The root systems of plants and trees create a thick, fibrous web that both collects plant nutrients and holds soil together even in rainy or wet weather.
Trees and plants both create oxygen from carbon dioxide -- a process essential to human survival -- and help remove dust and particulates from the air. Landscaping trees and plants makes air better for people to breathe and helps reduce the effects of human pollution from cars and industrial operations.
Birds, insects and other animals often use trees and plants for their homes. Birds can make nests in the branches of trees and find food in the insects that feed on leaves or bark. Plants also provide essential shade and shelter to animals in the local ecosystem.