Category: Ecology & Environment
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Ecosystem Structure
On the basis of trophic structure, ecosystem is two layered: “trophe = nourishment” Autotrophic Stratum (Green Belt): Upper, self-nourishing layer of chlorophyll-containing plants. Fix the light energy, convert inorganic substances into complex organic compounds which predominate in the stratum. The most intensive autotrophic metabolism occurs in this layer where light energy is available. Heterotrophic Stratum…
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Ecosystem (Introduction)
Introduction Ecosystem = Ecological System (Eco = Environment; System = Interacting & interdependent complex) ‘Ecosystem’ term was first used by A.G. Tansley (1935), describing a natural unit consisting of both living & non- living parts, which interact, forming a stable system. Fundamental concepts of ecosystem include… Energy flow through food chains or food webs. Nutrient…