ecosystem concept of eco system,structure and function of ecosystem.pptx

for taking class

1. Concept of ecosystem An ecosystem is a self regulatory and self sustaining structural and functional unit of recognizable landscape form( eg:Forest,Grass land,desert,wet landor coastal area),consisting of community of living beings interacting with the physical enviorment . Tansley 1985. Nature of eco system is based on its geographical features,like mountains,hills,plains,rivers ,lakes ,coastal areas or islands.

2. Components of eco system 2 components of echo system. Abiotic components; Climatic factors as light,temperature,rainfall,humidity etc Topographic or geographic factors features as height of mountain chains,direction of mountains and valleys,steepness of slope etc Edaphic or soil related factors. These features create conditons that support community of plants,animals and microbes