Indigenous agroforestry in tropical Asia: structure and dynamics. A comparative analysis of two case studies
1996
Sansonnens, B. (Universite de Lausanne, Lausanne (Switzerland). Institut de botanique systematique et de geobotanique)
Tropical indigenous agroforestry systems have met with growing interest among scientists in recent years. This paper presents two case studies: one in southern Sri Lanka, a very anthropized area, and one in Central Sumatra (Indonesia), a still largely forested area. The vegetation structure of agroforests is analysed by means of the architectural method using profile diagrams, together with classical forestry data. The comparison of the results enables to elaborate a dynamical typology of the systems in both situations, exemplified by several characteristic situations. A schematic general description of the development of indigenous agroforestry systems is presented. The similarities of this development with natural silvigenesis are emphasized. The origin and evolution of these man-made ecosystems are eventually discussed in relation with other land use systems
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