Little is known about the stability of mixed perennial cropping systems in the central Amazon. Therefore, water and nutrient fluxes were studied in different mono- and polycultures to elucidate the feasibility of recultivating abandoned and degraded areas. Single-tree effects on ecological important parameters were monitored and yielded valuable data about the functioning of the investigated systems. Large amounts of nitrogen were leached into the subsoil. The combination of trees with different properties may help to utilize nutrients and water more efficiently than monocultures. (orig.)SIGLEAvailable from TIB Hannover: F98B2185 / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekBundesministerium fuer Bildung, Wissenschaft, Forschung und Technologie, Bonn (Germany)DEGerman
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