DATA SETS

There are four data sets available within the Excel files below.

• Faculty Data Set [XLS] (52 KB)
• Student Data Set [XLS] (32 KB)

Dataset 1 contains values for aboveground net primary productivity for 1988 through 2002 as g m^-2. These data are published in Magill et al. (2004), and Alison Magill provided permission for these data to be posted and distributed on the TIEE website.

Dataset 2 contains average values and standard errors for the photosynthetic capacity of red pine needles collected from the control and high N plots. These data are published in Bauer et al. (2004), and G.A. Bauer provided permission for these data to be posted and distributed on the TIEE website.

Dataset 3 contains average values and standard errors for cumulative soil respiration (g C m^-2) during the growing seasons of 1988, 1989, and 2001. These data are published in Bowden et al. (2004), and Richard Bowden provided permission for these data to be posted and distributed on the TIEE website.

Dataset 4 contains replicate bacterial and fungal biomass data collected in 2002 from all plots. These data are published in Frey et al. (2004), and the author gives permission for these data to be posted and distributed on the TIEE website.

See "Student Instructions" for more information about data collection methods for each Data Set.

References

• Bauer, G.A. F.A. Bazzaz, R. Minocha, S. Long, A. Magill, J. Aber, and G.M. Berntson. 2004. Effects of chronic nitrogen additions on tissue chemistry, photosynthetic capacity, and carbon sequestration potential of a red pine (Pinus resinosa Ait.) stand in the NE United States. Forest Ecology and Management 196:173-186.
• Bowden, R.D., E.Davidson, K. Savage, C.Arabia, and P. Steudler. 2004. Chronic nitrogen additions reduce total soil respiration and microbial respiration in temperate forest soils at the Harvard Forest. 2004. Forest Ecology and Management 196:43-56.
• Frey, S.D., M. Knorr, J. Parrent, and R.T. Simpson. 2004. Chronic nitrogen enrichment affects the structure and function of the soil microbial community in a forest ecosystem. Forest Ecology and Management 196:159-171.
• Magill, A.H., J.D. Aber, W.S. Currie, K.J. Nadelhoffer, M.E. Martin, W.H. McDowell, J.M. Melillo and P. Steudler. 2004. Ecosystem response to 15 years of chronic nitrogen additions at the Harvard Forest LTER, Massachusetts, USA. Forest Ecology and Management 196:7-28.