Welcome you all..
Jun 24, 2015
Welcome you all..
PRESENTED BY: K. S. NituM.Sc. Nursing I yearRoll No.403
DEFINITIONEcosystem is a community of living organisms in conjunction with the non living components of their environment (water, air & mineral soil) interacting as a system.
ECOSYSTEM PROCESSEcosystem is controlled by two factors:
External Factors (state factors): control overall structure of ecosystem. Eg. Climate
Internal Factors: in ecosystem not only control ecosystem processes, but are also controlled by them.
CLASSIFICATION
TERRESTRIAL ECOSYSTEM
AQUATIC ECOSYSTEM
They can be found anywhere apart from heavily saturated place.
They are biggest ecosystem found in a body of water.
TERESTRIAL ECOSYSTEM
They are broadly classified into: The Forest Ecosystem
The Dessert Ecosystem
The Grassland Ecosystem
The Mountain ecosystem
AQUATIC ECOSYSTEM
They are two main types:
The Marine Ecosystem
The Freshwater Ecosystem
FUNDAMENTAL CHARACTERSTICSStructure Living Nonliving
• Process Energy flow Cycling of matter
• Change Dynamic Succession
Cont….
ABIOTICOrganic
compounds
Inorganic substances
BIOTICAutotrophs
Heterotrophs
CHANGES IN ECOSYSTEM THAT EFFECT HEALTHUrbanizationIndustrializationDeforestationLand reclamationPollutionPopulation explosionExcess use of resources
WAYS TO MAINTAIN ECOLOGICAL BALANCEManage Natural Resources carefullyControl PopulationProtect waterRecycleReduction in pollutionPrevent deforestation
Thank you….