1. General Model Information
Name: WaNuLCAS: Water, Nutrient and Light Capture in Agroforestry Systems
Acronym: WANULCAS
Main medium: terrestrial
Main subject: agroforestry,forestry,agriculture
Organization level: landscape
Type of model: ordinary differential equations
Main application: simulation tool,research,education
Keywords: agroforestry, agroecosystems,water capture, nutrient capture, light capture, tree-soil-crop interactions, alley cropping,STELLA,
Contact:
Meine van Noordwijk
ICRAF, Southeast Asian Regional Programme,
Jl. Cifor, Situgede, Sindangbarang,
P.O. Box 161, Bogor 16001,
INDONESIA
Phone: 62-251-625-415
Fax: 62-251-625-416
email: icraf-indonesia@cgiar.org or b.lusiana@cgiar.org
Homepage: http://www.icraf.cgiar.org/sea/
Author(s):
Meine van Noordwijk (Senior Soil Scientist),
Betha Lusiana
ICRAF,Bogor
Abstract:
WaNuLCAS 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 trees and crops,
elementary tree-crop physiology and soil science. It can be used for exploring
positive and negative interactions for different combinations of trees,
crops, soil, climate and management by the farmer.
WaNuLCAS makes use of the
STELLA modelling environment and
thus allows users to modify parameters between simulations and add model
structure and relations of specific interest. It can be used for
teaching as well as research.
II. Technical Information
II.1 Executables:
Operating System(s):
II.2 Source-code:
Programming Language(s): STELLA
II.3 Manuals:
Title: WaNuLCAS 2.0. background on a model of Water, Nutrient and Light Capture in Agroforestry Systems.
Downloadable from: http://www.icraf.cgiar.org/sea/AgroModels/WaNulCAS/index.htm
II.4 Data:
WaNuLCAS comes with a number of default input files for different crops, soils and run-options.
All available in accompanying excel file (WaNulCAS.xls).
Downloadable from: http://www.icraf.cgiar.org/sea/AgroModels/WaNulCAS/index.htm
III. Mathematical Information
III.1 Mathematics
III.2 Quantities
III.2.1 Input
III.2.2 Output
IV. References
Van Noordwijk, M. and Lusiana, B. 2000. WaNuLCAS 2.0, Background on a model of water nutrient and light capture in agroforestry systems. International Centre for Research in Agroforestry (ICRAF), Bogor, Indonesia. 186 pp
Van Noordwijk M, Radersma S and Lusiana B.1999. Modelling root architecture and phosphorus uptake in agroforestry .Agroforestry Forum 9:28-29
Van Noordwijk, M., M. Van Roode, E.L. McCallie, B. Lusiana, 1998. Erosion and sedimentation as multiscale, fractal processes: implications for models, experiments and the real world. In: F. P. d. Vries, F. Agus and J. Kerr (eds.) Soil Erosion at Multiple Scales, Principles and Methods for Assessing Causes and Impacts. CAB International, Wallingford. pp. 223-253.
- van Noordwijk, M. and Lusiana, B. 1999.
WaNuLCAS, a model of water, nutrient and light capture in agroforestry systems. Agroforestry Systems (45:131-158)
Rowe E, Hairiah K, Cadisch G, van Noordwijk M, Giller K. 1998. Testing the safety net role of hedgerow tree roots by 15 N placement at different soil depths. Agroforestry Systems 43: 81-93.
Taylor, J. and Muetzelfeldt, R. 1998. Re-implementation of WaNuLCAS in AME , Institute of Ecology and Resource Management, The University of Edinburgh
van Noordwijk, M.; Hairiah, K.; Lusiana, B.; Cadish, G; Bergstrom, L. (ed.); Kirchmann, H. 1998. Tree-soil-crop interactions in sequential and simultaneous agroforestry systems. In: Carbon and nutrient dynamics in natural and agricultural tropical ecosystems.1998, 173-190; 24 ref..
van Noordwijk, M. 1996. Models as part of agroforestry research design. Special issue: biological management of soil fertility for sustainable agriculture on an ultisol. Agrivita. 1996, 19: 4, 192-197; 4 ref..
van Noordwijk, M. and Ong, C.K. 1996. Lateral resource flow and capture - the key to scaling up agroforestry results. Agroforestry-Forum.1996, 7: 3, 27-31; 1 ref..
Noordwijk, M. van; Geijn, S.C. van de; 1996. Root, shoot and soil parameters required for process-oriented models of crop growth limited by water or nutrients. Plant-and-Soil.1996, 183: 1, 1-25; 137 ref..
Willigen, P. de; Noordwijk, M. van; Kabat, P. (ed.); Marshall, B. (ed.); Broek, B.J. van den (ed.); Vos, J. (ed.); Keulen, H. van; 1995. Models for interactions between water and nutrient uptake. In: Modelling and parameterization of the soil plant atmosphere system: a comparison of potato growth models.1995, 135-153; 18 ref..
Noordwijk, M. van; Spek, L.Y.; Purnomosidhi, P. 1995. Quantifying shallow roots: tree geometry makes root research easy. Agroforesteria-en-las-Americas.1995, 2: 6, 23-26; Translation of an article in Agroforestry Today (1995) 7 (2) 9-11; 5 ref..
Ranganathan, R.; Wit, C.T. de; Noordwijk, M. van; Black, C.R.; Marshall, F.M.; Corlett, J.E.; Brenner, A.J.; Wallace, J.S.; Garrity, D.P.; Lawson, G.; Soumare, A.; Groot, J.J.R.; Hairiah, K.; Ong, C.K. (ed.); Huxley, P. 1996. Tree-crop interactions: a physiological approach. XV+386pp., CAB INTERNATIONAL; Wallingford; UK
V. Further information in the World-Wide-Web
VI. Additional remarks
Last review of this document by: Betha LusianaThu, 01 Mar 2001
Status of the document:
last modified by
Tobias Gabele Wed Aug 21 21:44:52 CEST 2002