10.2190/5T21-8LRY-DFHY-M2X2 5T218LRYDFHYM2X2 7 Investigations into Behavioral Modes of a Forest Growth Model 349 354 20020509 20020509 20020509 20020509 5T218LRYDFHYM2X2.pdf http://baywood.metapress.com/link.asp?target=contribution&id=5T218LRYDFHYM2X2 4 J. S. Pandey A. Shankar P. Khanna National Environmental Engineering Research Institute, Nagipur, India Application of sensitivity analysis for a tree growth model is discussed. The detailed tree growth model has been designed to test and augment general understanding of the processes involved in vegetative growth, and to predict the behavioral modes of the model under different levels of pollution stress. The effect of pollutants has been modeled and studied through sensitivity analysis in terms of changes in the conversion efficiency parameter for the foliage, assimilate partitioning coefficients, and coefficients dependent upon losses due to mortality, grazing and litter fall. The sensitivity analysis provides better understanding of the component subprocesses, and helps in deciding research priorities for useful application of the model in environmental management. R. M. Klein and T. D. Perkins, Cascades of Causes and Effects of Forest Decline, <i>Ambio, 16</i>, pp. 86-93, 1987. H. J. Joger, H. J. Weigel, and L. Grunhage, Physiologische Und Biochemische Aspekte der Wirkung Von Immissioness and Waldbaume, <i>European Journal Pathology, 16</i>, pp. 98-109, 1986. B. T. Chevone and Y. S. Yang, CO2 Exchange Rates and Stornalal Resistance in Soyabean Exposed to O3 and SO2, <i>Canadian Journal Plant Science, 65</i>, pp. 267-274, 1985. D. R. Cooley and W. J. Manning, Ozone Effects on Growth and Assimilate Partitioning in Alfalfa, Medicago Sativa L., <i>Environmental Pollution, 49</i>, pp. 19-36, 1988. M. Ashmore, N. Bell, and J. Rutter, The Role of Ozone in Forest Damage in West Germany, <i>Ambio, 14</i>, pp. 81-87, 1985. A. J. R. Bamford, S. Coghlan, and P. J. Lea, Ozone-Induced Changes in CO2 Assimilation O2 Evolution and Chlorophyll a Fluorescence Transients in Barely, <i>Environmental Pollution, 59</i>, pp. 129-140, 1989. J. S. Pandey, A. Shankar, and P. Khanna, Study of Effects of Air Pollutants on a Forest Stand through Variations in Assimilate Partitioning Coefficients, National Seminar On Radiation and Photochemical Process of the Environment, January 17-19, 1990.