LTER Zöbelboden, Austria, Intensive Monitoring Plots, Forest inventory and tree biomass data 2003 - 2019

Forest inventories were conducted in 2003, 2007, 2012, 2014 and 2019 within the intensive monitoring plots of the LTER Zöbelboden. Prior to the first inventory, each tree was tagged and subsequently its spatial position was recorded. Tree species, tree vitality status, diameter at breast height (dbh = 1.37 m) (tree caliper) and tree height (Vertex III/G, Haglöf, ) was surveyed. Tree biomass was calculated by species- and tree compartment-specific volume and biomass functions (Zianis et al. 2005; Muukkonen and Mäkipää 2006; Alberti et al. 2005) applied to the tree metrics dbh and tree height. Estimated stem wood volume at field-moist status was converted to biomass at dry weight by multiplying stem volume with species-specific shrinking ratios and species-specific average wood densities (Ö NORM B 3012 2003). For more detailed information on the volume and biomass functiuons used, please contact the contact persons.