| hbr_maples {lterdatasampler} | R Documentation |
Health of Sugar Maple (Acer saccharum) Seedlings in Response to Calcium Addition (2003-2004), Hubbard Brook LTER
Description
Sugar maple seedlings were examined at Hubbard Brook Experimental Forest on calcium-treated and reference sites during August 2003 and June 2004. Seedlings were sampled every ten steps in transects.
Usage
hbr_maples
Format
A tibble with 359 rows and 11 variables
- year
a number denoting the year that the sample was taken
- watershed
a factor denoting the watershed where the sample was collected; W1 = calcium-treated, Reference = reference
- elevation
a factor describing the Elevation of transect; Low = low elevation, Mid = mid elevation
- transect
a factor denoting the transect number within the watershed
- sample
a factor denoting the sample number within transect. There are twenty samples in each transect
- stem_length
a number denoting the height of the seedling in millimeters
- leaf1area
a number denoting the area of the first sampled leaf in square centimeters
- leaf2area
a number denoting the area of the second sampled leaf in square centimeters
- leaf_dry_mass
a number denoting the dry mass of both sampled leaves in grams
- stem_dry_mass
a number denoting the dry mass of the stem in grams
- corrected_leaf_area
a number denoting the area of both leaves in addition to the area removed for chlorophyll measurements in square centimeters
Source
Juice, S. and T. Fahey. 2019. Health and mycorrhizal colonization response of sugar maple (Acer saccharum) seedlings to calcium addition in Watershed 1 at the Hubbard Brook Experimental Forest ver 3. Environmental Data Initiative. doi:10.6073/pasta/0ade53ede9a916a36962799b2407097e