Body: "Plant ecology" is the examination of the interaction of plants and how the are effected by their environment as well as how they are dispersed.
Some subfields in "Plant ecology" include forms, reproduction, dispersement.
Why study "Plant ecology"? understand how plants are dispersed and react to each other and the environment as well as how they reproduce.
Paul Keddy, Laura F. Huenneke are some authorities of "Plant ecology".