Title: Stem radius change from Picea mariana and Larix laricina at the Old Black Spruce site, Boreal Research Ecosystem and Monitoring Sites (BERMS)
Citation: Nehemy, M., Maillet, J., Laroque, C. (2021). Stem radius change from Picea mariana and Larix laricina at the Old Black Spruce site, Boreal Research Ecosystem and Monitoring Sites (BERMS). Federated Research Data Repository. https://doi.org/10.20383/102.0367
Study Site: Saskatchewan
Purpose: The boreal forest is a major contributor to the global climate system, therefore, reducing uncertainties in how the forest will respond to a changing climate is critical. One source of uncertainty is the timing and drivers of the spring transition. Remote sensing can provide important information on this transition, but persistent foliage greenness, seasonal snow cover, and a high prevalence of mixed forest stands (both deciduous and evergreen species) complicate interpretation of these signals.
Abstract: This dataset holds stem radius data collected at the Boreal Ecosystem Research and Monitoring Sites (BERMS). Stem radius change was monitored at the Old Black Spruce site (OBS) (53. 98 ºN, 105.12 °W) from the two dominant tree species, black spruce (Picea mariana) and eastern larch (Larix laricina). The stem radius change was measured with the use of circumference band dendrometers, type DC2 and DC3 from Ecomatik (Ecomatik, Germany), and recorded every 30 min using a HOBO UX120-006M data logger. An array composed of four or less dendrometers were affixed to individual trees of the same species and connect to the same data logger. There was a total of eight arrays at OBS, four monitoring 13 P. mariana trees, and four monitoring 13 L. laricina trees. There are periods where data from less dendrometers are available due to logger failure and/or wild animals interfering on measurements. No gap filling technique was used when gaps were present. This dataset includes data that have been processed for analysis.
Supplemental Information Summary:
Research:
Further Info: Pierrat, Z., Nehemy, M. F., Roy, A., Magney, T., Parazoo, N. C., Laroque, C., Pappas, C., Sonnentag, O., Grossmann, K., Bowling, D. R., Seibt, U., Ramirez, A., Johnson, B., Helgason, W., Barr, A., Stutz, J. (2021). Tower-based remote sensing reveals mechanisms behind a two-phased spring transition in a mixed-species boreal forest. Journal of Geophysical Research: Biogeosciences
Status: Complete
Keywords:
vegetation,
stem radius change,
tree hydraulics,
boreal forest,
Geographical coordinates: North: 53.98, South: 53. 98 East: -105.12 West: -105.12
Bounding Temporal Extent: Start Date: 2019-01-20, End
Date: 2020-06-25
