Coppice Poplar Stem Biomass

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The original LTER poplars were copiced in 1999. This table tracks regrowth. Details of stems stored separately from branches (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 December 2003
Dataset: KBS094
Datatable ID: KBS019-011.47
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
Tree ID 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.
Stem ID A number assigned to each stem comprising a given tree.
Diameter diameter at 15 cm above the ground. millimeter
Length length of the stem or banch millimeter
Biomass dry weight of the stem or branch gram
comments comments about the observation

Data Excerpt

year campaign date treatment replicate tree_id stem_id diameter length biomass comments
1999 Poplar Destructive Sampling 1999-09-10 T5 R1 E50 1 1.86 201.4 103.44
1999 Poplar Destructive Sampling 1999-09-10 T5 R1 E50 2 1.77 197.3 95.67
1999 Poplar Destructive Sampling 1999-09-10 T5 R1 E50 3 1.6 180.4 70.51
1999 Poplar Destructive Sampling 1999-09-10 T5 R1 E50 4 0.86 91.7 16.04
1999 Poplar Destructive Sampling 1999-09-10 T5 R1 E50 5 0.57 76.1 6.86
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