A system in which all living organisms such as plants, animals, and microorganisms interact with the physical environments such as air, water, sun, weather, climate, and soil is known as a sustainable ecosystem.
A sustainable ecosystem can meet the needs of the present population and the future population, without any assistance from outside the ecosystem.
Example of the sustainable ecosystem
Healthy wetlands:
Healthy wetlands are a self-sufficient ecosystem and are the most productive ecosystem in the world.
It provides protection to the ecosystem, improves the water quality, provides fish and wildlife habitats, and maintains surface water during dry seasons.
This ecosystem shows immense diversity of life forms (microorganisms, insects, reptiles, birds, mammals).
The Appalachian region in the United States:
This ecosystem is one of the most biologically diverse ecosystems.
This ecosystem maintains a sustainable life by reusing and recycling the products of the ecosystem.