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… of on-farm trees: on-farm trees are not only assets for farming systems but are also an important source of … at these sites can now reoccupy them. The absence of organic matter also means that any fertilizers applied to … to tolerate and grow on these impoverished sites until organic matter has been built up in the topsoil once more. …

… fire on fallow areas to optimize the formation of organic matter. Using community management to prevent further … and timber has been found in Rwanda highlands. • Contract farming is having some success, which supports aggregation, …

… the global carbon cycle, converting atmospheric carbon to organic matter through photosynthesis. Forest carbon sinks … before 2005 by donating plots of 100 hectares to people farming them, and selling plots of 100– 1,500 hectares at a … forest, elimination of “slash-and-burn” methods of farming (especially in forested zones), using alternative …