Conclusion Spatial distribution of net primary production (NPP) using modis data and correlation with climate variability

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5.2 Recommendation

1. Although the results in this study represent our current understanding of how climate change affects terrestrial NPP, they do not consider the redistribution of vegetation that may result from climate change. It is recommended to do evaluate the sensitivity of NPP to vegetation redistribution in addition to changes in climate. 2. To improve the prediction of net primary production, it is recommended to apply more parameter data such as land cover data from high resolution satellite data. 3. It is important to conduct field experiments and observations for advancing our understanding of the interactions between the carbon and nitrogen cycles in the tropics. 75 REFFERENCE Alexander, M. A., Blade, I., Newman, M., Lanzante, J. R., Lau, N.-C., and Scott, J. D.: The atmospheric bridge: the influence of ENSO teleconnections on air-sea interaction over the global oceans, J. Climate, 15, 2205 –2231, 2002. Braswell, B., Schimel, D., Linder, E. and Moore, B. 1997. The response of global terrestrial ecosystems to interannual temperature variability. Science 278, 870 –872. Clark, D. A., S. Brown, D. W. Kicklighter, J. Q. Chambers, S. T. Gower, J. Thomlinson, and J. Ni. 2001. Measuring net primary production in forests: a synthesis of current concepts and field methods. Ecological Applications. Chambers, J. Q., Tribuzy, E. S., Toledo, L. C., Crispim, B. F., Higuchi, N., dos Santos, J., Araujo, A. C., Kruijt, B., Nobre, A. D., and Trumbore, S. E., 2004: Respiration from a tropical forest ecosystem: Partitioning of sources and low carbon use efficiency, Ecol. Appl., 14, S72 –S88. Dye, D.G. and Honda, R.S., 1996. Estimation carbon fixation in India based on remote sensing data . Haryana state remote sensing application centre. HAU Campus. India Field C B, Randerson J T, Malmström C M, 1995. Global net primary production: combining ecology and remote sensing. Remote Sensing of Environment, 51: 74-88. Fung I, Tucker, C.J., Prentice, K., 1987. Application of advanced very high resolution radiometer vegetation index to study atmosphere-biosphere exchange of CO2. J. Geophys. Res. 92D3: 2999 –3015 Goetz, S. J, and S. D. Prince, 1998. Variability in light utilization and net primary production in boreal forest stands. Canadian Journal of Forest Research. 28: 375-389. Goetz, S. J., Prince, S.D., Goward, S.N., et al., 1999. Satellite remote sensing of primary production; An improved production efficiency modeling approach. Ecol Model, 1999, 122:239-255.