10.2190/17V1-2XPB-7T9Y-AAVE 17V12XPB7T9YAAVE 4 Development of Plant Function Types for Studying Impact of Green House Gases on Terrestrial Ecosystems 67 82 20020509 20020509 20020509 20020509 17V12XPB7T9YAAVE.pdf http://baywood.metapress.com/link.asp?target=contribution&id=17V12XPB7T9YAAVE 1 J. S. Pandey P. Khanna National Environmental Engineering Research Institute, Nagpur India Increasing carbon dioxide concentrations and associated climatic changes have pronounced effects on carbon storage in ecosystems. This, in turn, is likely to affect C/N ratios of the plant material with possible effects on decomposition cycles. Hence, it becomes important that at local levels mechanisms of CO₂ interactions with water, light, nutrients and temperature should be investigated, and the effects integrated in order to quantify the cumulative impact of CO₂ increase on biomass production. This article discusses importance of parameter ‘G’ in connection with maximum increments in plant volume, and provides models for certain important Indian species. I. Colin Prentice, M. T. Sykes, and W. Cramer, A Simulation Model for the Transient Effects of Climate Change on Forest Landscapes, <i>Ecol. Modelling, 65</i>, pp. 51-70, 1993. J. S. Pandey, S. Moghe, and P. Khanna, Green House Gases, Environmental Stress and Ecological Analysis, <i>Global Change: IGBP Report No. 18</i>:2, pp. 103-108, 1991. L. H. Ziska and A. H. Teramura, Intraspecific Variation in the Response of Rice (Oryza Sativa) to Increased CO₂—Photosynthetic, Biomass and Reproductive Characteristics, <i>Physiologia Plantarum, 84</i>, pp. 269-276, 1992. E. P. Odum, <i>Basic Ecology</i>, Saunders College Publishing, Holt-Saunders International Editions, 1983. T. Ingestad and G. I. Agron, Theories and Methods on Plant Nutrition and Growth, <i>Physiologia Plantarum, 84</i>, pp. 177-184, 1992. S. W. Running and J. G. Coughlan, A General Model of Forest Ecosystem Processes for Regional Applications I. Hydrologic Balance, Canopy Gas, Exchange and Primary Production Processes, <i>Ecol. Modelling, 42</i>, pp. 125-154, 1988. IGBP, <i>The International Geosphere-Biosphere Programme: A Study of Global Change</i>, (IGBP) Report No. 4, 1988. J. S. Pandey, A. Shanker, and P. Khanna, Investigations into Behavioural Modes of a Forest Growth Model, <i>Journal of Environmental Systems, 19</i>:4, pp. 349-354, 1990. J. S. Pandey and P. Khanna, Speed-Dependent Modelling of Ecosystem Exposures from Vehicles in the Near-Road Environment, <i>Journal of Environmental Systems, 21</i>:3, pp. 185-192, 1992. A. D. Moore, On the Maximum Growth Equation used in Forest Gap Simulation Models, <i>Ecological Modelling, 45</i>, pp. 63-67, 1989. D. B. Botkin, J. F. Janak, and J. R. Wallis, Some Ecological Consequences of a Computer Model of Forest Growth, <i>Journal of Ecology, 60</i>, pp. 849-873, 1972. H. L. Gholz, Environmental Limits on Above Ground Net Primary Production, Leaf Area, and Biomass in Vegetation Zones of the Pacific North West, <i>Ecology, 63</i>:2, pp. 469-481, 1982. N. I. Bazilevich, A. V. Drozdov, and L. E. Rodin, World Forest Productivity, Its Basic Regularities and Relationships with Climatic Factors, in <i>Ecology and Conservation</i>, P. Duvigneand (ed.), UNESCO, Paris, pp. 345-353, 1971. H. Leith, Modelling and Primary Productivity of the World in H. Leith and R. H. Whittaker (eds.), <i>Primary Productivity of the Biosphere</i>, Springer-Verlag, New York, 1975. C. C. Grier and S. W. Running, Leaf Area of Mature Northwestern Coniferous Forests: Relation to a Site Water Balance, <i>Ecology, 58</i>, pp. 893-899, 1977. E. O. Box, What Determines the Amount of Leaf and Total Standing Biomass of Climax Terrestrial Vegetation?, <i>Bulletin of the Ecological Society of America, 61</i>:2, p. 76, 1980.