Plant components and soil organic matter
Large amounts of cellulose, aromatics, and proteinaceous compounds are introduced into the geochemical carbon pool as products of biological activity, or by economic and public health endeavors. Industrial wastes, pesticides, and detergents belong to the latter category. A net dry matter production of 1 kg/m2, representing about 4000 k. cal of energy, is attained in a significant portion of temperate terrestrial ecosystems (MacFayden, 1967). Most of the annual net primary productivity falls to the surface of the soil or is present as roots and is decomposed there. It is not surprising, therefore, ...
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