Abe1981
Data contributor: Masae I. Ishihara, Hajime Utsugi, Hiroyuki Tanouchi, Tsutom Hiura
Email: [email protected]
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: Abe N (1981). 'Studies on the management of Abies sachalinensis Mast. planted forest (III) On biomass estimation of 53-year-old stand.' Bulletin of the Hokkaido Forest Experiment Station, 19, pp. 115-127.
DOI:
Abstract:
The dataset includes records for 17 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 | 17 | 45 | 45 | 45 |
| longitude | Longitude | deg | 17 | 143 | 143 | 143 |
| a.stba | Stem area at base | m2 | 17 | 0.022 | 0.1 | 0.2 |
| a.stbh | Stem area at breast height | m2 | 17 | 0.016 | 0.071 | 0.13 |
| a.stbc | Stem area at crown base | m2 | 17 | 0.009 | 0.035 | 0.077 |
| h.t | Height | m | 17 | 16 | 20 | 23 |
| h.c | Height to crown base | m | 17 | 4.8 | 9.4 | 13 |
| d.ba | Basal diameter | m | 17 | 0.17 | 0.36 | 0.5 |
| d.bh | Dbh | m | 17 | 0.14 | 0.3 | 0.41 |
| h.bh | Height of d.bh measurement | m | 17 | 1.3 | 1.3 | 1.3 |
| c.d | Crown depth | m | 17 | 6.8 | 11 | 17 |
| m.lf | Leaf mass | kg | 17 | 3.8 | 20 | 52 |
| m.st | Total stem mass | kg | 17 | 59 | 298 | 562 |
| m.so | Aboveground mass | kg | 17 | 62 | 321 | 595 |
| m.br | Branch mass | kg | 17 | 4.6 | 30 | 114 |
And locally within the country:
## Error - location lies outside country borders. Perhaps add more decimal places?
The sites sampled are:
| Location | Longitude | Latitude | Vegetation |
|---|---|---|---|
| Japan-Oumu-46 | 143 | 45 | Boreal forest |
The growing conditions of sampled plants was:
| Location | growingCondition |
|---|---|
| Japan-Oumu-46 | plantation managed |
| Species | Family | Pft |
|---|---|---|
| Abies sachalinensis | Pinaceae | evergreen gymnosperm |
Sampling strategy: In August 1979, 17 sample trees in a quadrate (15 m times 10 m) of a 53 year-old plantation were cut down (Abe 1980). The stand was facing the north-east with slope of 13 to 20 degree. Five trees were selected to represent each diameter class. These five trees were then treated with the stratified clip technique by cutting them into parts contained in horizontal layers of 0-0.3 m, 0.3-1.3 m, and at intervals of 1 m upward to the crown base and in horizontal strata defined by whorl brahces from crown base to the stem apex. For the remaining 12 tress, stems were cut into parts contained in horizontal layer or 0-0.3 m, 0.3-1.3 m, and at intervals of 3.65 m upward to the crown base, and in horizontal strata defined by whorl brahces from crown base to the stem apex.
Stem cross sectional area: Estimated from stem diameter.
Height: Metadata not available.
Biomass: For stem biomass, fresh mass was converted to dry mass from the ratio of dry to fresh mass. The ratio was estimated from subsamples taken from each tree at each layer. For branch and leaf biomass, total fresh mass of branches and leaves were converted to dry mass from the ratio of dry to fresh mass. Then, dry mass of branches and leaves were converted to branch dry mass and leaf dry mass by the ratio of leaf to branch dry mass. Both ratios were estimated from subsamples taken from each tree at each whorl stratum. All samples were oven-dried at 90 degrees C for 96 hours.
Other variables: M.I. Ishihara, H. Utsugi, H. Tanouchi, and T. Hiura conducted formal search of reference databases and digitized raw data from Abe (1980). 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 Abe1981 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.
