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Manual
MN0052-12
TitleWaNuLCAS version 4.0, Background on a model of water nutrient and light capture in agroforestry systems
AuthorMeine van Noordwijk, Betha Lusiana, Ni'matul Khasanah and Rachmat Mulia
Year2011
PublisherWorld Agroforestry Centre - ICRAF, SEA Regional Office
City of PublicationBogor, Indonesia
Number of Pages224
Call NumberMN0052-12
ISBN978-979-3198-59-0
Abstract:
Sustainable land use systems can be provided through agroforestry practices. Agroforestry is an agricultural approach of using the benefits from combining trees and crops and/or livestock. Therefore, knowledge on selection of species combination and good management of trees and crops are needed to maximize the production and positive effects of trees and to minimize negative competitive effects on crops. However, empirical assessment of tree crop combinations is laborious, cost expensive and time consuming. One method for overcoming this lack of information is through development of model which integrate soil-tree-crop interaction between components of agroforestry.
The WaNuLCAS model was developed to represent tree-soil-crop interactions in a wide range of agroforestry systems where trees and crops overlap in space and/or time (simultaneous and sequential agroforestry).
The model is based on above and below ground architecture of tree and crop, elementary tree and crop physiology and soil science (daily water, N, P and SOM balance for 4 soil layers and 4 horizontal zones). The model was developed in the Stella modeling platform and can be used to assess the performance in terms of profitability as well as sustainability of various agroforestry systems.
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