Rehabilitation of degraded forest lands through agroforestry in Thailand
1994
Petmak, P. (Royal Forest Dept., Bangkok (Thailand))
The field experiments and demonstration plots aiming at indicating the feasibility and desirability of agroforestry in Thailand have been first designed since 1978 in the representative marginal lowland areas characterized by infertile sandy loam soils at the Huey Thar Silvicultural Research Station, Sisaket Province, Northeast Thailand. These long-term comprehensive studies have mostly been concentrated on some systems that are widely adopted such as agrisilvicultural or partial overlap system, one-storey hedgerow intercropping, cyclical planted fallow or shifting cultivation system, multi-storey mixed intercropping, one-storey alley cropping, as well as the modified multi-storey strip planting. These studies also involved the selection of tree species based on biomass production, soil improvement ability, optimum tree-crop combination with respect to fuelwood production and its economic feasibility. These preliminary assessments are not intended to be an isolated effort, rather, they are envisaged as the beginning of a sustained program to develop and introduce appropriate pilot models to solve the problems of wood and food crises, deforestation and rural poverty throughout the country. Similar studies are being continuously duplicated and expanded to other sites and locations, following these initial phases, to provide on-going support to the implementation effort. Evidence accumulating from these studies and the advantages attributed to the implementation of agroforestry systems are sufficient grounds to assume that agroforestry might be a sustainable land-use system in our fragile tropical environments
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