Satoo1974c

Report for study: Satoo1974c

Contact Information

Data contributor: Masae I. Ishihara, Hajime Utsugi, Hiroyuki Tanouchi, Tsutom Hiura

Email: masaish.n@gmail.com

Address:

• Graduate School for International Development and Cooperation, Hiroshima University, 1-5-1 Kagamiyama, Higashi-Hiroshima 739-8529, Japan
• Forestry and Forest Products Research Institute (FFPRI), 1 Matsunosato, Tsukuba, Ibaraki, 305-8687, Japan
• Hokkaido Research Center, Forestry and Forest Products Research Institute (FFPRI), Hitsujigaoka-7, Toyohira, Sapporo, Hokkaido, 062-8516, Japan
• Tomakomai Research Station, Field Science Center for Northern Biosphere, Hokkaido University, Takaoka, Tomakomai 053-0035, Japan

Data source

Citation: Satoo T (1974). 'Primary production relations in a plantation of Larix leptolepis in Hokkaido: Materials for the studies of growth in forest stands.' Bulletin of the Tokyo University Forests, 66, pp. 119-126.

DOI:

Abstract:

Overview of data provided

The dataset includes records for 10 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	10	43	43	43
longitude	Longitude	deg	10	142	142	142
age	Age	yr	10	21	21	21
a.stbh	Stem area at breast height	m2	10	0.01	0.016	0.034
h.t	Height	m	10	14	15	17
d.bh	Dbh	m	10	0.11	0.14	0.21
h.bh	Height of d.bh measurement	m	10	1.3	1.3	1.3
m.lf	Leaf mass	kg	10	1.9	2.9	6.6
m.st	Total stem mass	kg	10	31	52	134
m.so	Aboveground mass	kg	10	33	55	140
m.br	Branch mass	kg	10	4.3	6.8	23

And locally within the country:

The sites sampled are:

Location	Longitude	Latitude	Vegetation
Japan-Mt. Asibetu-	142.33	43.22	Temperate forest

The growing conditions of sampled plants was:

Location	growingCondition
Japan-Mt. Asibetu-	plantation managed

Species sampled

Species	Family	Pft
Larix kaempferi	Pinaceae	deciduous gymnosperm

Methods used

Sampling strategy: Sampling was conducted in a Larix kaempferi plantation (21 years old, 300 m a.s.l.) located at the foothill of Mt. Asibetu in central Hokkaido, Japan. A plot of size 20 m times 30 m were created. Details of the sampling plot are listed in Table 1 of Satoo (1974c). Ten sample trees were selected to cover a wide range of diameter and cut down at ground level in the summer of 1961. Sample trees were treated with stratified sampling technique by cutting them into parts contained in horizontal layers of 0-0.3 m, 0.3-1.3 m, at intervals of 2 m upward to the crown base, and at intervals of 1 m upward.

Stem cross sectional area: Estimated from stem diameter.

Height: Method not reported.

Biomass: Measured fresh mass of each component (needle, branches and stem) within each layer was converted to dry mass from the ratio of dry to fresh mass. The ratio was estimated from subsamples taken from each tree for each layer. Stem discs was taken as a subsample at the base of the segment in each layer. Subsamples of branches or needles were collected for each layer.

Other variables: M.I. Ishihara, H. Utsugi, H. Tanouchi, and T. Hiura conducted formal search of reference databases and digitized raw data from Satoo (1974c). Based on this reference, meta data was also created by M.I. Ishihara. Species name and family names were converted by M.I. Ishihara according to the following references: Satake Y, Hara H (1989a) Wild flower of Japan Woody plants I (in Japanese). Heibonsha, Tokyo; Satake Y, Hara H (1989b) Wild flower of Japan Woody plants II (in Japanese). Heibonsha, Tokyo.

Plots of data

This is how the study Satoo1974c 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.