Factors like humidity, temperature, rainfall and soil types determine that nature and composition of the biotic community within a forest.

These factors of abiotic environment which influence and shape a forest are also in turn modified by the population of living organisms within the system. Deforestation involves removal of plant biomass which cripples the system. Various useful products such as fire wood, timber, honey, fruits, nuts, resins, medicinal plants etc, are no longer available. A chain of is sit into motion the consequences of which are as follows:

(i) Soil degradation and erosion

(ii) Changes in climatic conditions


(iii) Destruction of natural habitats

(iv) Destruction of a valuable sink for environmental pollutants.