Tadaki1979
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: Tadaki Y, Takeuchi I, Kawahara T, Sato A and Hatiya K (1979). 'Growth analysis on the natural stands of Japanese red pine (Pinus densiflora Sieb. et Zucc.) III. Results of experiment (Research note).' Bulletin of the Forestry and Forest Products Research Institute, 305, pp. 125-144.
DOI:
Abstract:
The dataset includes records for 24 individuals from 1 species belonging to 1 family(ies), presenting 1 functional type(s), growing in 2 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 | 24 | 36 | 36 | 36 |
| longitude | Longitude | deg | 24 | 140 | 140 | 140 |
| a.stbh | Stem area at breast height | m2 | 24 | 0.00066 | 0.0066 | 0.019 |
| h.t | Height | m | 24 | 4.7 | 8.2 | 10 |
| d.bh | Dbh | m | 24 | 0.029 | 0.091 | 0.15 |
| h.bh | Height of d.bh measurement | m | 24 | 1.3 | 1.3 | 1.3 |
| m.lf | Leaf mass | kg | 24 | 0.09 | 1.3 | 7.5 |
| m.st | Total stem mass | kg | 24 | 1 | 18 | 56 |
| m.so | Aboveground mass | kg | 24 | 1.1 | 19 | 62 |
| m.br | Branch mass | kg | 24 | 0.14 | 2.2 | 17 |
| m.rt | Total root mass | kg | 15 | 0.2 | 4.4 | 25 |
| m.to | Total mass | kg | 15 | 1.3 | 22 | 87 |
And locally within the country:
The sites sampled are:
| Location | Longitude | Latitude | Vegetation |
|---|---|---|---|
| Japan-Masuko town-P-A sparse stand | 140.11 | 36.45 | Temperate forest |
| Japan-Masuko town-P-B 1000 trees/ha stand | 140.11 | 36.45 | Temperate forest |
| Japan-Masuko town-P-C control stand | 140.11 | 36.45 | Temperate forest |
The growing conditions of sampled plants was:
| Location | growingCondition |
|---|---|
| Japan-Masuko town-P-A sparse stand | plantation managed, field wild |
| Japan-Masuko town-P-B 1000 trees/ha stand | plantation managed, field wild |
| Japan-Masuko town-P-C control stand | plantation managed, field wild |
| Species | Family | Pft |
|---|---|---|
| Pinus densiflora | Pinaceae | evergreen gymnosperm |
Sampling strategy: Study was conducted in a naturally regenerated secondary Pine forest (Block III in the Takadateyama National Forest, compartment 91-Ka, Wo, and Wa, 200 m a.s.l.). For Block I see Ando 1962. The forest regenerated naturally during 1942-1947. Experimental plots were created in 1951. Plot A was thinned in 1961 to avoid strong competition (2100 trees / ha). Plot B was thinned in 1951 to the density of 10,000 trees / ha. Plot C was control without any thinning. The shape of a plot was 10 m times 10 m quadrate. Eight sample trees were selected from each plot to represent various diameter classes and felled in January 1976. Sample trees were treated with the stratified clip technique by cutting them into parts contained in horizontal layers of 1 m depth and separated into stem, branches, current-year branches, old needles, and new needles.
Stem cross sectional area: Estimated from stem diameter.
Height: Not reported.
Biomass: Measured fresh mass was converted to dry mass from the ratio of dry to fresh mass. The ratio was estimated from subsamples.
Other variables: M.I. Ishihara, H. Utsugi, H. Tanouchi, and T. Hiura conducted formal search of reference databases and digitized raw data from Tadaki et al. (1979). 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 Tadaki1979 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.
