Osada0000

Report for study: Osada0000

Contact Information

Data contributor: Noriyuki Osada

Email: osadada@fsc.hokudai.ac.jp

Address:

• Tomakomai Research Station, Field Science Center for Northern Biosphere, Hokkaido University, Tomakomai 053-0035, Japan

Data source

Citation: Osada N (Unpublished).

DOI:

Abstract:

Overview of data provided

The dataset includes records for 44 individuals from 3 species belonging to 2 family(ies), presenting 2 functional type(s), growing in 1 condition(s) within 2 major type(s) of habitat, with data included for the following variables:

Variable	Label	Units	N	Min	Median	Max
latitude	Latitude	deg	44	2.6	35	35
longitude	Longitude	deg	44	102	135	135
a.lf	Leaf area	m2	44	0.028	1.3	24
a.stba	Stem area at base	m2	17	0.000028	0.000052	0.00024
a.stbh	Stem area at breast height	m2	44	0.00002	0.00046	0.012
a.cp	Crown area	m2	27	0.86	4.2	18
h.t	Height	m	44	0.61	3.2	11
h.c	Height to crown base	m	27	0.76	2.4	4.3
d.ba	Basal diameter	m	17	0.006	0.0081	0.017
d.bh	Dbh	m	44	0.005	0.024	0.12
h.bh	Height of d.bh measurement	m	44	0.061	0.32	1.1
d.cr	Crown width	m	27	1	2.3	4.8
c.d	Crown depth	m	27	0.4	2.6	7
m.lf	Leaf mass	kg	44	0.0014	0.037	1.3
a.ilf	Area of individual leaf	m2	17	0.0045	0.0079	0.016
ma.ilf	Leaf mass per area	kg m-2	17	0.041	0.049	0.059

And locally within the country:

The sites sampled are:

Location	Longitude	Latitude	Vegetation
Pasoh Forest Reserve, Malaysia	102.18	2.59	Tropical rainforest, Temperate forest
Kamigamo Experimental Forest, Kyoto University	135.46	35.04	Tropical rainforest, Temperate forest

The growing conditions of sampled plants was:

Location	growingCondition
Pasoh Forest Reserve, Malaysia	field wild
Kamigamo Experimental Forest, Kyoto University	field wild

Species sampled

Species	Family	Pft
Elateriospermum tapos Blume	Euphorbiaceae	evergreen angiosperm, deciduous angiosperm
Gamblea innovans (Siebold et Zucc.) C.B. Shang, Lowry et Frodin	Araliaceae	evergreen angiosperm, deciduous angiosperm
Chengiopanax sciadophylloides (Franch. et Sav.) C.B. Shang et J.Y. Huang	Araliaceae	evergreen angiosperm, deciduous angiosperm

Methods used

Sampling strategy: Saplings of Elateriospermum tapos were chosen in the understory of Pasoh forest. Trees of Gamblea innovans and Chengiopanax sciadophylloides were chosen in various light environments in the Kamigamo forest.

Leaf area: Sample trees were harvested and the number of leaves was counted. Leaf area was measured by a digital scanner in Elateriospermum tapos, and was estimated from total mass of leaves and specific leaf area of leaf discs that were collected randomly.

Stem cross sectional area: Diameter of the main trunk at 10% of the height was measured for all species, diameter at stem base was measured for Elateriospermum tapos, and diameter at breast height was measured for Gamblea innovans and Chengiopanax sciadophylloides.

Height: Tree height was measured using an extendible pole for all species.

Crown area: The width and depth of each crown were measured for Gamblea innovans and Chengiopanax sciadophylloides. Widths were measured at the widest part of the crown and perpendicular to it. The projected area of the crown was calculated as an ellipse based on these two measurements.

Biomass: Total leaf mass was measured for all species after drying.

Growth environment: Seventy-eight trees 1.0-2.5 m tall were randomly selected inside the plot, and hemispherical photographs were taken above the apex of these trees with a CoolPix 910 digital camera with an FC-E8 fisheye converter (Nikon, Tokyo, Japan). An indirect site factor (ISF) was calculated with Hemiview ver. 2.1 (Delta-T Devices, Cambridge, UK).

Year collected: 1997-1999, 2012

Plots of data

This is how the study Osada0000 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.