| Title: |
Nitrogen production and foliage biomass from LTER sites 1989
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| Contacts: |
Oliver, Lola
Yarie, John
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| Abstract: |
The nitrogen productivity (N-productivity) concept represents one approach for development of algorithms for expansion from the individual tree to stand or landscape levels of estimation of primary production across the earth’s surface. A simple equation based on the N-productivity concept can be used to estimate plant production from the individual tree to stand level geographic units. Maximum N-productivity equations were developed for balsam poplar, white birch, and white spruce on an individual tree basis for the taiga of interior Alaska.
Maximum N-productivity equations were also developed for aspen, balsam poplar, and white spruce on a unit area basis (m2). A single equation for all species sampled and individual stands was developed on a unit area basis. The calculated productivity for test stands was in close agreement to the measured productivity from the landscape perspective.
The set of equations presented can be used for calculation of taiga forest productivity in a geographic model developed within a GIS software package in which the landscape unit is an integral part of the model structure.
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| Keywords: |
aboveground production, Alaska, aspen, balsam poplar, landscape, n productivity, taiga, white birch, white spruce, |
| Categories: |
Biogeochemistry
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| Study Period: |
Jun 1, 1989 to Sep 30, 1993
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| Bounding Box: |
West longitude: -148.3790685°
North latitude: 64.7666796°
East longitude: -148.1468545°
South latitude: 64.6719571°
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| Site References: |
FP2A -- FP2A is located adjacent to the LTER-2 weather station on a terrace that formed ca 1965.
FP2C -- Tall Balsam Poplar w/ Alder Understory Stand
FP3A -- Mixed Balsam Poplar and White Spruce (Open Populus balsamifera-Picea glauca community)
FP3B -- Mixed Balsam Poplar and White Spruce (Open Populus balsamifera-Picea glauca community)
FP3C -- Mixed Balsam Poplar and White Spruce (Open Populus balsamifera-Picea glauca community)
FP4A -- Mature white spruce
FP4B -- Mature white spruce
FP4C -- Mature white spruce
UP2A -- Closed Mixed White Spruce - Paper Birch Stand
UP2B -- Closed Mixed White Spruce - Paper Birch Stand
UP2C -- Closed Mixed Aspen - White Spruce Stand
UP3A -- Mature white spruce spruce stand on a south-facing slope
UP3B -- Closed White Spruce Forest
UP3C -- Closed White Spruce Forest
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| Data Columns: |
| Column |
Name |
Units |
Type |
| 1 |
Site |
none |
string |
| 2 |
Species |
none |
string |
| 3 |
abvgAnnualProd |
kilogramsPerSquareMeter |
float |
| 4 |
foliageBiomass |
kilogramsPerSquareMeter |
float |
| 5 |
Foliagenitrogen(%) |
Percent |
float |
| 6 |
Nproductivity(kg growth/kg foliarN) |
kilogram |
float |
|
| Data File(s): |
98_biomassN.txt
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| Supplemental Files: |
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| Metadata Formats: |
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| Public Release: |
Jan 7, 1999
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| Publications: |
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The Bonanza Creek LTER, including this website, is supported by the
National Science Foundation through awards
DEB-0620579,
DEB-0423442,
DEB-0080609,
DEB-9810217,
DEB-9211769,
DEB-8702629
and by the USDA Forest Service, Pacific Northwest Research Station through agreement number RJVA-PNW-01-JV-11261952-231.
Any opinions, findings, conclusions, or recommendations expressed in the
material are those of the author(s) and do not necessarily reflect
the views of the supporting agencies or the program as a whole.
© Bonanza Creek LTER, 2009.
Last modified 23-Nov-09
UAF is an affirmative action/equal opportunity employer and educational institution.
This site is a member of the LTER Network.
Disclaimer
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