Tree DBH (Raw Data) — Main Cropping System Experiment (MCSE)
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Diameter at breast height (DBH) of individual trees of the MCSE Coniferous (CF) and Deciduous (DF) Forest sites, measured annually during winter (usually January) at 4 points along the stem for all trees >5 cm DBH.
This datatable is part of the Primary Production of Forested Systems of the Main Cropping System Experiment dataset.
This dataset contains the data needed to determine the biomass and aboveground net primary production (ANPP) in the Coniferous (TCF) and Deciduous (TDF) Forest sites of the LTER Main Cropping System Experiment (MCSE). Allometric equations are used to estimate the standing woody biomass (since 1998) of each tree, based on the diameter at breast height (DBH; for trees >5 cm in diameter), typically measured in January. Annual woody production is estimated as the difference in the woody biomass of each tree between consecutive years and annual primary production as the sum of annual woody production and leaf production. Leaf production is estimated as the biomass of leaf litter collected in litter traps deployed in late summer through leaf fall. Litter collected from Poplar (T5) and Mid-successional (TSF) plots is also included.
Note
| Experiment: | Main Cropping System Experiment (MCSE) |
| Data available from: | December 1998 to January 2023 |
| Dataset: | KBS045 |
| Datatable ID: | KBS019-017.101 |
| Core Areas | Primary Production,Populations,Disturbance |
| Repository link: | http://doi.org/10.6073/pasta/b07ff1f1366f4252d651f2b45710f3d8 |
| Related Tables: | |
| Personnel: |
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| Last Updated | 2024-03-18 |
| Variate | Description | Units |
|---|---|---|
| sample date | day the tree was measured | |
| year | sample year (this is the year to which the sample is assigned, even if the actual sample date is in the following year) | |
| treatment | treatment sampled | |
| replicate | replicate sampled | |
| tree id | id of the tree sampled | |
| species | species sampled | |
| color | location of the dbh measurement | |
| dbh | diameter measured | cm |
| estimated | Set to true if the dbh has been estimated from the previous and following years. |
Data Excerpt
| sample_date | year | treatment | replicate | tree_id | species | color | dbh | estimated |
|---|---|---|---|---|---|---|---|---|
| 2020 | DF | 3 | 1011 | Prunus serotina Ehrh. (*) | blue | false | ||
| 2020 | DF | 3 | 1011 | Prunus serotina Ehrh. (*) | orange | false | ||
| 2020 | DF | 3 | 1011 | Prunus serotina Ehrh. (*) | red | false | ||
| 2020 | DF | 3 | 1011 | Prunus serotina Ehrh. (*) | white | false | ||
| 2023-01-26 | 2022 | CF | 3 | 369 | Pinus strobus L. (*) | blue | 35.1 | false |