Coppice Poplar Branch and Stem Biomass

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Poplars were clearcut in 1999. Since then, several trees per plot per year have been destructively sampled. This table integrates stem and branch data (KBS019-011 and KBS019-012).

This datatable is part of the Poplar Biomass by Allometric Equations dataset. Poplars are grown as cellulose crop at the Main Cropping System Experiment. The first rotation was planted at a stocking density of 1 tree per 2 square meter. After the first harvest the trees were allowed to coppice. After the second harvest the trees were replanted. The third rotation was planted at 1 tree per 3.6 square meter. For the first two rotations the species planted was Populus nigra x P. deltoids hybrid for the third rotation it is Populus nigra x P. maximowiczii.

Note

Experiment: Main Cropping System Experiment (MCSE)
Data available from: September 1999 to January 2003
Dataset: KBS094
Datatable ID: KBS019-013.47
Core Areas Primary Production
Repository link: http://doi.org/10.6073/pasta/11813b609a26b343cced93805b25a98b
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Last Updated 2017-01-26
Variate Description Units
Year The sample year
Campaign a major multi-year research activity with a discreet purpose
Date date on which sampling occurred
Treatment main experimental treatment
Replicate replicate block, nested within treatment
TreeID A position code in the form x,y where x is column number starting from the west and y is row number starting from the south.
BranchBiomass mass of all branches for a tree gram
StemBiomass mass of all stems for a tree gram
WoodyBiomass areal mass of wood (stems and branches) g/m2
HeaviestStem mass of the heaviest stem gram
LongestStem length of the longest stem millimeter
BasalArea sum of all stem cross-sections at 15 cm. squaremillimeters
MaxStemDiameter diameter of the largest stem 15 cm above the ground millimeter

Data Excerpt

year campaign date treatment replicate tree_id branchbiomass stembiomass woodybiomass heavieststem longeststem basalarea max_stem_diameter
1999 Poplar Destructive Sampling 1999-09-10 00:00:00 UTC T5 R1 E50 18.57 300.57 159.57 103.44 201.4 8.4 1.86
1999 Poplar Destructive Sampling 1999-09-10 00:00:00 UTC T5 R1 N16 140.86 1635.81 888.335 225.71 262.2 63.8 3.48
1999 Poplar Destructive Sampling 1999-09-10 00:00:00 UTC T5 R2 E33 241.74 981.26 611.5 281.84 291.4 32.4 3.14
1999 Poplar Destructive Sampling 1999-09-10 00:00:00 UTC T5 R2 N04 67.965 870.27 469.1175 179.71 236.8 33.2 2.61
1999 Poplar Destructive Sampling 1999-09-10 00:00:00 UTC T5 R4 E60 15.87 416.17 216.02 131.23 228.9 10.8 1.93
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