Abstract
In tropical rain forests, tree growth is often limited by scarcity of nutrients. For the study of the effects of nutrients and moisture on growth, the use of models is almost compulsory. The main output of the models discussed, NUTCYC and DYNAMITE, is the growth of forest vegetation and, in case of shifting cultivation, also the yields of agricultural crops.
State variables, water and nutrient flows, nutrient uptake, growth of the vegetation and required input data are shortly described. Sensitivity analysis identified retranslocation of nutrients in the vegetation as one of the major growth determining processes. As a demonstration of the use of such models, rice yields are calculated that can be expected under various shifting-cultivation scenarios. Finally the models are briefly evaluated, and some questions are discussed that arose when the models were developed.
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References
Bruynzeel LA (1989) Nutrient cycling in moist tropical forests: the hydrological framework. In: Proctor J (ed.) Mineral nutrients in tropical forest and savanna ecosystems. Spec Publ nr 9 of the British Ecological Society, pp. 383–416. Oxford: Blackwell Scientific Publications
Collinet J, Couturier G, Guillaumet JL, Kahn F, Moreau R and Sangare R (1984) Le système cultural et ses constraintes. In: Guillaumet JL, Courturier G and Dosso H (eds.). Recherche et aménagements en milieu forestier humide: le projet Tai de Côte d'Ivoire. Notes techniques du MAB 15, pp. 113–185. Paris: Unesco
Fritsch E (1982) Evolution des soils sous recrû forestier après mise en culture tradionelle dans le Sud-ouest de la Côte d'Ivoire. Centre d'Adiopodoumé, Côte d'Ivoire: Office de la Recherche Scientifique et Technique Outre-Mer
Jaffré T (1985) Composition minérale et stocks de bioéléments dans la biomasse epigée de recrûs forestiers en Côte d'Ivoire. Acta OEcologica OEcol Plant Vol 6(20) No 3: 233–246
Jaffré T and de Namur Ch (1983) Evolution de la biomasse végétale epigée au cours de la succession secondaire dans le Sud-Ouest de la Côte d'Ivoire. Acta OEcologica OEcol Plant Vol 4 (18) No 3: 250–272
Janssen BH (1984) A simple method for calculating decomposition and accumulation of ‘young’ organic matter. Plant and Soil 76: 297–304
Janssen BH, Lathwell DJ and Wolf J (1987) Modeling long-term crop response to fertilizer phosphorus. II. Comparison with field results. Agron J 79: 452–458
Jordan CF (1985) Nutrient cycling in tropical forest ecosystems. Chichester: Wiley & Sons
Noij IGAM (1988) Een eenvoudig simulatiemodel voor nutriëntenbeperkte fytomassa produktie in tropische bosgebieden: NUTCYC. Agric Univ Wageningen. Bodemkunde en Plantevoeding. Verslagen en mededelingen 1988-1
Noij IGAM, Janssen BH and van Reuler H (1988) Modeling nutrient cycling in tropical forest areas. A case study of Tai-region, Côte d'Ivoire. Proc. 2nd Int Tropenbos Seminar, October 5–7 1987, Amsterdam, pp 122–128. Ede, Netherlands: Tropenbos
Noij IGAM, Janssen BH, Wesselink LG and van Grinsven JJM (1990) Modeling nutrient and moisture cycling in tropical forests. Technical Series Nr. 5. Ede, Netherlands: Tropenbos
Poels RLH (1987) Soils, water and nutrients in a forest ecosystem in Suriname. Ph D thesis, Agric Univ Wageningen
Proctor J (ed.) (1989) Mineral nutrients in tropical forest and savanna ecosystems. Spec Publ nr 9 of the British Ecological Society. Oxford: Blackwell Scientific Publications
van Reuler H and Janssen BH (1989) Nutritional constraints in secondary vegetation and upland rice in south-west Ivory Coast. In: Proctor J (ed.) Mineral nutrients in tropical forest and savanna ecosystems. Spec Publ nr 9 of the British Ecological Society, pp. 371–382. Oxford: Blackwell Scientific Publications
Vooren AP (1985) Patterns in tree and branch-fall in a West African rain forest. Report Dept of Silviculture, Agric Univ Wageningen, No D 85-05
Whitmore TC (1989) Tropical forest nutrients, where do we stand? A tour de horizon. In: Proctor J (ed.) Mineral nutrients in tropical forest and savanna ecosystems. Spec Publ nr 9 of the British Ecological Society, pp. 1–13. Oxford: Blackwell Scientific Publications
Wolf J, de Wit CT, Janssen BH and Lathwell DJ (1987) Modeling long-term crop response to fertilizer phosphorus. I. The model. Agron J 79: 445–451
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Janssen, B.H., Noij, I.G.A.M., Wesselink, L.G. et al. Simulation of the dynamics of nutrients and moisture in tropical ecosystems. Fertilizer Research 26, 145–156 (1990). https://doi.org/10.1007/BF01048752
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DOI: https://doi.org/10.1007/BF01048752