Delagrange0000b

Report for study: Delagrange0000b

Contact Information

Data contributor: Sylvain Delagrange

Email: sylvain.delagrange@uqo.ca

Address:

• Departement des sciences naturelles, Universite du Quebec en Outaouais, Institut des Sciences de la Forêt Tempérée (ISFORT), 58 rue principal, Ripon (Quebec) J0V 1V0, Canada

Data source

Citation: Delagrange S (Unpublished).

DOI:

Abstract:

Overview of data provided

The dataset includes records for 257 individuals from 1 species belonging to 1 family(ies), presenting 1 functional type(s), growing in 1 condition(s) within 1 major type(s) of habitat, with data included for the following variables:

Variable	Label	Units	N	Min	Median	Max
latitude	Latitude	deg	257	46	46	46
longitude	Longitude	deg	257	-75	-75	-75
age	Age	yr	257	2	11	33
a.lf	Leaf area	m2	256	0.0071	0.22	1.5
a.stba	Stem area at base	m2	255	0.0000011	0.000079	0.00046
a.cp	Crown area	m2	257	0.0029	0.4	2.9
h.t	Height	m	257	0.19	1.4	3.3
h.c	Height to crown base	m	254	0	0.19	0.81
d.ba	Basal diameter	m	255	0.0012	0.01	0.024
d.cr	Crown width	m	257	0.061	0.71	1.9
c.d	Crown depth	m	254	0.14	1.1	3
m.lf	Leaf mass	kg	257	0.00019	0.007	0.04
m.st	Total stem mass	kg	257	0.0002	0.02	0.15
m.so	Aboveground mass	kg	257	0.00039	0.027	0.19
m.br	Branch mass	kg	257	0	0.0072	0.11
m.rf	Fine root mass	kg	257	0.00003	0.0018	0.035
m.rc	Coarse root mass	kg	257	0.00004	0.0095	0.18
m.rt	Total root mass	kg	257	0.00012	0.012	0.19
m.to	Total mass	kg	257	0.00055	0.04	0.34
ma.ilf	Leaf mass per area	kg m-2	256	0.022	0.03	0.17

And locally within the country:

The sites sampled are:

Location	Longitude	Latitude	Vegetation
Outaouais, Quebec, Canada	-75.325	45.99722	Temperate forest

The growing conditions of sampled plants was:

Location	Grouping	growingCondition
Outaouais, Quebec, Canada	Site = B2; Seedbed = MS	field wild
Outaouais, Quebec, Canada	Site = B2; Seedbed = DW	field wild
Outaouais, Quebec, Canada	Site = B2; Seedbed = DWM	field wild
Outaouais, Quebec, Canada	Site = MUL2; Seedbed = MS	field wild
Outaouais, Quebec, Canada	Site = MUL2; Seedbed = DWM	field wild
Outaouais, Quebec, Canada	Site = MUL2; Seedbed = DW	field wild
Outaouais, Quebec, Canada	Site = MUL5; Seedbed = DW	field wild
Outaouais, Quebec, Canada	Site = MUL5; Seedbed = MS	field wild
Outaouais, Quebec, Canada	Site = MUL5; Seedbed = DWM	field wild
Outaouais, Quebec, Canada	Site = Z5; Seedbed = MS	field wild
Outaouais, Quebec, Canada	Site = Z5; Seedbed = DWM	field wild
Outaouais, Quebec, Canada	Site = Z5; Seedbed = DW	field wild

Species sampled

Species	Family	Pft
Betula alleghaniensis	Betulaceae	deciduous angiosperm

Methods used

Sampling strategy: 60 transects were done in 4 sugar maple and yellow birch stands. Seedlings and saplings were selected along the transect to cover the largest size gradient. Individuals were then harvested carefully to obtain total biomass.

Leaf area: leaf area was calculated using a scanner. For small individuals, total leaf area was scanned while for bigger saplings only half or a third of the leaf area was scanned.

Stem cross sectional area: Stem Diameter was measured using a digital caliper

Height: height was measured using a measuring tape.

Crown area: Crown width was measured as the mean of 2 perpendicular diameters.

Biomass: Individuals compartments were partiotioned and then dried until weigth remains constant.

Traits: Crown height was measured as the lenght of the stem supporting alive branches or leaves. LMA was measured using total leaf area and biomass excepted on bigger individuals for which a subsample was used.

Growth environment: 5-60% of total PPFD. 2/3 of the individuals were growing on deadwood and the rest on mineral soil.

Plots of data

This is how the study Delagrange0000b fits in the entire dataset (grey). each colour represents a species. A legend of species names with colours is included at the end for reports with 1 < n < 20 species.