WaNuLCAS, a model of water, nutrient and light capture in agroforestry systems |
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Authors: | M Van Noordwijk B Lusiana |
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Institution: | (1) ICRAF – S.E. Asia, P.O. Box 161, Bogor, 16001, Indonesia |
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Abstract: | Models of tree-soil-crop interactions in agroforestry should maintain a balance between dynamic processes and spatial patterns
of interactions for common resources. We give an outline and discuss major assumptions underlying the WaNuLCAS model of water,
nitrogen and light interactions in agroforestry systems. The model was developed to deal with a wide range of agroforestry
systems: hedgerow intercropping on flat or sloping land, fallow-crop mosaics or isolated trees in parklands, with minimum
parameter adjustments. Examples are presented for simulation runs of hedgerow intercropping systems at different hedgerow
spacings and pruning regimes, a test of the safety-net function of deep tree roots, lateral interactions in crop-fallow mosaics
and a first exploration for parkland systems with a circular geometry.
This revised version was published online in June 2006 with corrections to the Cover Date. |
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Keywords: | competition resource capture root distribution simulation stella |
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