Poplar Biomass at Harvest

Poplar plots are clearcut and biomass is measured, by weighing the biomass harvested. Biomass is the standing crop, or production since last clearcut, in g/m2, based on 9088 m2. However, poplar density is not constant across the plots. The 2007 data are from the S1x2m planting density on the southern half of the plot.

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: January 1998 to January 2007
Dataset: KBS094
Datatable ID: KBS019-008.26
Core Areas Primary Production,Disturbance
Related Tables:
Personnel:
Last Updated 2017-01-26
Variate Description Units
Year year of the growing season relevant for the sample
Campaign major multi-year research activity with a discreet purpose
Begin Date date of beginning of sampling activity
End Date last date on which sampling activity occured
Treatment main experimental treatment
Replicate replicate block, nested within treatment
Species five or six letter code representing the species (or taxon) sampled
First Season year of the first growing season contributing biomass to the sample
Last Season year of the last growing season contributing biomass to the sample
Biomass dry mass of sampled material g/m2

Data Excerpt

year campaign begin_date end_date treatment replicate species first_season last_season biomass
1998 Poplar Harvest 1999-02-08 1999-02-17 T5 R2 POPEU 1989 1998 3962
2007 Poplar Harvest T5 R1 POPEU 1999 2007 3050
2007 Poplar Harvest T5 R4 POPEU 1999 2007 2554
1998 Poplar Harvest 1999-02-17 1999-02-23 T5 R3 POPEU 1989 1998 3233
1998 Poplar Harvest 1999-03-04 1999-03-12 T5 R6 POPEU 1989 1998 4433
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