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Poplar Biomass – Allometric Development — Main Cropping System Experiment (MCSE)

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Biomass of semi-annually destructively sampled poplar trees (T5; planted in 1989 and harvested in 1999) and used in the development of allometric equations to determine tree biomass from stem diameter. Harvested trees were separated into wood and leaf fractions. From 1989-1992, woody biomass was further divided into stems and branches, but are combined here in the WOOD fraction; original data are available on request.

This datatable is part of the Primary Production of the Poplar Treatment of the Main Cropping System Experiment dataset.

This dataset contains allometric and areal biomass data for the Poplar treatment (T5) of the Main Cropping System Experiment (MCSE) at the LTER Main Site. The Poplar treatment is managed as a short-rotation woody biomass system on an approximate 10-year rotation cycle with replanting or coppicing after harvest. Rotations are as follows:

  • First: planted in April 1989 with stem cuttings of Populus nigra x P. deltoids hybrid at a stocking density of 1 tree per 2 square meter, harvested in February 1999.
  • Second: trees allowed to coppice after 1999 harvest, coppicing produced multiple stems per tree, coppiced regrowth harvested in January 2008.
  • Third: planted in May 2009, after a fallow year, with stem cuttings of Populus nigra x P. maximowiczii at a density of 1 tree per 3.6 square meter, harvested in February 2018.
  • Fourth: planted in June 2019, after a fallow year, with stem cuttings of Populus nigra x P. maximowiczii at a density of 1 tree per 3.6 square meter.

For further information on poplar management, search the KBS Aglog.

Note

Experiment: Main Cropping System Experiment (MCSE)
Data available from: January 1989 to January 1998
Dataset: KBS094
Datatable ID: KBS019-007.87
Core Areas Primary Production
Repository link: http://doi.org/10.6073/pasta/11813b609a26b343cced93805b25a98b
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Last Updated 2024-03-18
Variate Description Units
Year The year of the growing season relevant for the sample
Campaign a major multi-year research activity with a discreet purpose
date date on which sampling occured
treatment main experimental treatment
replicate replicate block, nested within treatment
tree id a designation unique to a particular tree
fraction fraction of the biomass measured
biomass mass of the biomass measured in grams
diameter trunk diameters at 15 cm above ground mm

Data Excerpt

year campaign date treatment replicate tree_id fraction biomass diameter
1998 Poplar Destructive Sampling 1998-09-03 T5 R1 2 LEAF 285.0 103.63
1998 Poplar Destructive Sampling 1998-09-03 T5 R1 2 WOOD 7490.0 103.63
1998 Poplar Destructive Sampling 1998-09-03 T5 R1 1 WOOD 11035.0 118.42
1998 Poplar Destructive Sampling 1998-09-03 T5 R1 1 LEAF 505.0 118.42
1998 Poplar Destructive Sampling 1998-09-03 T5 R2 3 LEAF 230.0 90.34
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