| 摘 要： | The bio-mass(Food, Fodder and Forestry, etc. ) in a habitat has beencontinuously depleting due to rapid industrialization and over-population leadingto various kinds of undesirable effects on our environment and on land masscausing deep concern to planners and management experts. In this paper, therefore, a mathematical model for degradation of bio-massis presented to study the effects of industrialization and associated growth ofpopulation, It is shown that with the increase in the levels of these factors,the bio-mass resource may not last long. It has also been pointed out mathematicallythat the level of the biomass can be maintained at desired equilibrium level bya suitable afforestation programme.
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