Tree DBH (Raw Data) — Main Cropping System Experiment (MCSE)

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Diameter at breast height (DBH) of individual trees of the MCSE Coniferous (CF) and Deciduous (DF) Forest sites, measured annually during winter (usually January) at 4 points along the stem for all trees >5 cm DBH.

This datatable is part of the Primary Production of Forested Systems of the Main Cropping System Experiment dataset.

This dataset contains the data needed to determine the biomass and aboveground net primary production (ANPP) in the Coniferous (TCF) and Deciduous (TDF) Forest sites of the LTER Main Cropping System Experiment (MCSE). Allometric equations are used to estimate the standing woody biomass (since 1998) of each tree, based on the diameter at breast height (DBH; for trees >5 cm in diameter), typically measured in January. Annual woody production is estimated as the difference in the woody biomass of each tree between consecutive years and annual primary production as the sum of annual woody production and leaf production. Leaf production is estimated as the biomass of leaf litter collected in litter traps deployed in late summer through leaf fall. Litter collected from Poplar (T5) and Mid-successional (TSF) plots is also included.


Experiment: Main Cropping System Experiment (MCSE)
Data available from: December 1998 to January 2023
Dataset: KBS045
Datatable ID: KBS019-017.101
Core Areas Primary Production,Populations,Disturbance
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Last Updated 2024-03-18
Variate Description Units
sample date day the tree was measured
year sample year (this is the year to which the sample is assigned, even if the actual sample date is in the following year)
treatment treatment sampled
replicate replicate sampled
tree id id of the tree sampled
species species sampled
color location of the dbh measurement
dbh diameter measured cm
estimated Set to true if the dbh has been estimated from the previous and following years.

Data Excerpt

sample_date year treatment replicate tree_id species color dbh estimated
2020 DF 3 1011 Prunus serotina Ehrh. (*) blue false
2020 DF 3 1011 Prunus serotina Ehrh. (*) orange false
2020 DF 3 1011 Prunus serotina Ehrh. (*) red false
2020 DF 3 1011 Prunus serotina Ehrh. (*) white false
2023-01-26 2022 CF 3 369 Pinus strobus L. (*) blue 35.1 false
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