The WaNuLCAS model can predict some of the biophysical benefits and consequences that are commonly attributed to agroforestry systems. The shallow rooting system of Gliricidia causes compettion (Left) for nutrients and water with maize roots. The deep rooting system of Peltophorum, leads to less competition and reduces N leaching (right).• The WaNuLCAS model version 2.0 was used to simulate different scenarios on adaily time step for 9 years for some of the described cropping systems (Table 1)established on an Ultisol at the Biological Management of Soil Fertility (BMSF)Project site (4o 31’ S, 104o55’ E), Kotabumi, Lampung, Indonesia.• An annual total rainfall of 3102 mm (1 Nov 1997 – 31 Oct 1998) was used in thesimulationsFarmers have a simple terminology for soil fertility by using the distinction 'hot' versus'cool’. A Corg/Cref ratio of 1 is a soil just derived from forest, called ‘cool’ by farmers;values towards 0 are increasingly ‘hot’, while values above 1 are ‘cooler than cool.
Publication year
2001
Authors
Suprayogo D; van Noordwijk, M.; Lusiana, B.
Language
English
Keywords
fires, impact assessment, land, living standards
Geographic
Indonesia
