Poplar Measurement — Main Cropping System Experiment (MCSE)
Data in the KBS LTER core database may not be published without written permission of the lead investigator or project director Full terms of use
Poplars are measured to develop relationships between biomass and allometric values, or to estimate biomass from such relationships. Prior to 1994 woody biomass was divided into stems and branches, here they are combined into the WOOD fraction. The original data is available on request.
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 1989 to January 1998 |
| Dataset: | KBS094 |
| Datatable ID: | KBS019-007.48 |
| Core Areas | Primary Production |
| Repository link: | http://doi.org/10.6073/pasta/11813b609a26b343cced93805b25a98b |
| Related Tables: | |
| Personnel: |
|
| Last Updated | 2020-07-10 |
| 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 |
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 |