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The BOREAS TE-09 team collected several data sets related to chemical and photosynthetic properties of leaves in boreal forest tree species. This data set describes the spatial and temporal relationship between foliage nitrogen concentration and photosynthetic capacity in the canopies of black spruce, jack pine, and aspen. The data were collected from June to September 1994 and are useful for modeling the vertical distribution of carbon fixation for different forest types in the boreal forest.

A guide document which includes more information about this data set can be found at

ORNL DAAC maintains information on the entire BOREAS Project.

Data Citation:

Cite this data set as follows:

Dang, Q., H. Margolis, and M. Coyea. 1998. BOREAS TE-09 Photosynthetic Capacity and Foliage Nitrogen Data. Data set. Available on-line [] from Oak Ridge National Laboratory Distributed Active Archive Center, Oak Ridge, Tennessee, U.S.A.


Bremner, J.M. and C.S. Mulvaney, 1982. Nitrogen - Total. pp. 595-623. In: Methods of Soil Analysis, Part 2. Chemical and Microbiological Properties. Second edition. A.L. Page, R.H. Miller and D.R. Keeney, editors. American Society of Agronomy Inc. and the Soil Science Society of America Inc., Madison, WI.

Dang, Q.L., H. Margolis, M.R. Coyea, M. Sy, G.J. Collatz, and C. Walthall. 1997. Profiles of photosynthetically active radiation, nitrogen, and photosynthetic capacity in the boreal forest: implications for scaling from leaf to canopy. J. Geophys. Res., BOREAS Special Issue (in press).

Sellers, P. and F. Hall. 1994. Boreal Ecosystem-Atmosphere Study: Experiment Plan. Version 1994-3.0, NASA BOREAS Report (EXPLAN 94).

Sellers, P. and F. Hall. 1996. Boreal Ecosystem-Atmosphere Study: Experiment Plan. Version 1996-2.0, NASA BOREAS Report (EXPLAN 96).

Sellers, P. and F. Hall. 1997. BOREAS Overview Paper. JGR Special Issue (in press).

Sellers, P., F. Hall, and K.F. Huemmrich. 1996. Boreal Ecosystem-Atmosphere Study: 1994 Operations. NASA BOREAS Report (OPS DOC 94).

Sellers, P., F. Hall, and K.F. Huemmrich. 1997. Boreal Ecosystem-Atmosphere Study: 1996 Operations. NASA BOREAS Report (OPS DOC 96).

Sellers, P., F. Hall, H. Margolis, B. Kelly, D. Baldocchi, G. den Hartog, J. Cihlar, M.G. Ryan, B. Goodison, P. Crill, K.J. Ranson, D. Lettenmaier, and D.E. Wickland. 1995. The boreal ecosystem-atmosphere study (BOREAS): an overview and early results from the 1994 field year. Bulletin of the American Meteorological Society. 76(9):1549-1577.

von Caemmerer, S. and G.D. Farquhar, 1981. Some relationships between biochemistry of photosynthesis and the gas exchange of leaves. Planta 153:376-387.

Data Format:

For information on Parameter/Variable Names, Variable Description/Definition, Units of Measurement, and Data File Format see the companion file

Document Information:

09-Jun-1998 (data citation revised on 25-Sep-2002)

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