Satoo1974b
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
Citation: Satoo T (1974). 'Primary production relations in a natural forest of Betula maximowicziana in Hokkaido: Materials for the studies of growth in forest stands.' Bulletin of the Tokyo University Forests, 66, pp. 109-117.
DOI:
Abstract:
The dataset includes records for 15 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 | 15 | 43 | 43 | 43 |
| longitude | Longitude | deg | 15 | 142 | 142 | 142 |
| a.lf | Leaf area | m2 | 15 | 52 | 93 | 158 |
| a.stbh | Stem area at breast height | m2 | 15 | 0.026 | 0.03 | 0.051 |
| h.t | Height | m | 15 | 19 | 22 | 24 |
| d.bh | Dbh | m | 15 | 0.18 | 0.2 | 0.25 |
| h.bh | Height of d.bh measurement | m | 15 | 1.3 | 1.3 | 1.3 |
| m.lf | Leaf mass | kg | 15 | 3.2 | 5 | 7.7 |
| m.st | Total stem mass | kg | 15 | 200 | 265 | 398 |
| m.so | Aboveground mass | kg | 15 | 204 | 268 | 404 |
| m.br | Branch mass | kg | 15 | 22 | 35 | 98 |
And locally within the country:
The sites sampled are:
| Location | Longitude | Latitude | Vegetation |
|---|---|---|---|
| Japan-Tokyo University Forest in Hokkaido-74-Y-I Top of the slope | 142.43 | 43.2 | Temperate forest |
| Japan-Tokyo University Forest in Hokkaido-74-Y-II Middle of the slope | 142.43 | 43.2 | Temperate forest |
| Japan-Tokyo University Forest in Hokkaido-74-Y-III Bottom of the slope | 142.43 | 43.2 | Temperate forest |
The growing conditions of sampled plants was:
| Location | growingCondition |
|---|---|
| Japan-Tokyo University Forest in Hokkaido-74-Y-I Top of the slope | field wild |
| Japan-Tokyo University Forest in Hokkaido-74-Y-II Middle of the slope | field wild |
| Japan-Tokyo University Forest in Hokkaido-74-Y-III Bottom of the slope | field wild |
| Species | Family | Pft |
|---|---|---|
| Betula maximowicziana | Betulaceae | deciduous angiosperm |
Sampling strategy: Sampling was conducted in three Betula maximowicziana secondary forests (48 years old, 300-350 m a.s.l.) regenerated after a large forest fire in 1911 located in the University of Tokyo Hokkaido Forest. Sampling plot of size 20 m times 50 m were created on the upper, middle, and lowere parts of the slope (I, II, and III). Details of the sampling plots are listed in Table 1 of Satoo (1974a). Five sample trees were selected from each plot that were of average size and cut down at ground level in the summer of 1958. Sample trees were divided into stem, branches, and leaves. Stem and braches were futher separated into layers at the height of 0, 0.3, 1.3 m and the interval of 2 m upward.
Leaf area: Total leaf area was estimated from the fresh mass and the ratio of leaf area to fresh mass which was obtained from subsamples. Leaf area was measured by the dot-counting method (Negishi et al. 1957 J. Jp. For. Soc. 39: 380-384). Transpalent plate with marked dots at a certian interval such as every 1 cm was placed randomly on a leaf. Leaf area was estimated from the relationship between leaf area and the counted number of dots in the leaf.
Stem cross sectional area: Estimated from stem diameter.
Height: Method not reported.
Biomass: Stem biomass was estimated by multiplying its volume with bulk density both determined from subsamples. Stem subsamples were taken at the height of 0, 0.3, 1.3 m and the interval of 2 m upward. Using the stem analysis techinque, stem volume was estimated. Branch and leaf biomass were estimated from fresh mass and the ratio of dry to fresh mass. The ratio was obtained from subsamples. Branch diameter was measured for all branches at 10 cm from their base. Branch subsample was taken at 0.5-2 m from the base of the branch for a branch having mean branch diameter in each layer. Leaf subsample were taken.
Other variables: M.I. Ishihara, H. Utsugi, H. Tanouchi, and T. Hiura conducted formal search of reference databases and digitized raw data from Satoo (1974a). 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.
This is how the study Satoo1974b 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.
