Utsugi2004
Data contributor: Hajime Utsugi, Hiroyuki Tanouchi
Email: utsugi@ffpri.affrc.go.jp
Address:
- 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
Citation: Utsugi H, Abe S, Iida S, Tobita H, Tanouchi H and Sato M (2004). 'The above ground biomass components of boreal deciduous forest in Northen Japan 1: The above ground biomass estimation and vertical distribution of foliage area.' The Bulletin of Hokkaido Branch of the Japanese Forestry Society, 52, pp. 99-101.
DOI:
Abstract:
The dataset includes records for 26 individuals from 3 species belonging to 3 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 | 26 | 43 | 43 | 43 |
| longitude | Longitude | deg | 26 | 141 | 141 | 141 |
| a.stbh | Stem area at breast height | m2 | 26 | 0.00075 | 0.04 | 0.16 |
| h.t | Height | m | 26 | 4.2 | 18 | 26 |
| h.c | Height to crown base | m | 26 | 1.5 | 8.5 | 17 |
| d.bh | Dbh | m | 26 | 0.031 | 0.23 | 0.45 |
| h.bh | Height of d.bh measurement | m | 26 | 1.3 | 1.3 | 1.3 |
| c.d | Crown depth | m | 26 | 2.4 | 8.4 | 18 |
| m.lf | Leaf mass | kg | 26 | 0.17 | 4.1 | 19 |
| m.st | Total stem mass | kg | 26 | 1.6 | 215 | 1189 |
| m.so | Aboveground mass | kg | 26 | 1.8 | 219 | 1203 |
| m.br | Branch mass | kg | 26 | 0.26 | 35 | 361 |
And locally within the country:
The sites sampled are:
| Location | Longitude | Latitude | Vegetation |
|---|---|---|---|
| Japan-Experimental Forest of Hokkaido Research Center of Forestry and Forest Products Research Institute-Compartment 6-Ro | 141.385 | 42.9887 | Temperate forest |
The growing conditions of sampled plants was:
| Location | growingCondition |
|---|---|
| Japan-Experimental Forest of Hokkaido Research Center of Forestry and Forest Products Research Institute-Compartment 6-Ro | field wild |
| Species | Family | Pft |
|---|---|---|
| Quercus crispula | Fagaceae | deciduous angiosperm |
| Kalopanax pictus | Araliaceae | deciduous angiosperm |
| Betula platyphylla | Betulaceae | deciduous angiosperm |
Sampling strategy: 10 Quercus crispula, 8 Kalopanax septemlobus, and 8 Betula platyphylla trees located near a permanent plot were cut at ground level. Stem diameter and tree height were measured. Sample trees were then treated with the stratified clip technique by cutting them into parts contained in horizontal layers of 1 m thickness.
Leaf area: Possible to provide leaf area data with request.
Stem cross sectional area: Estimated from stem diameter.
Height: Measured by measuring tape.
Crown area: Possible to provide crown area data with request.
Biomass: Fresh weights of leaves, branches and stem were measured separately for each layer and tree. Subsamples of each organ (stem discs, branches, and 10-100 g of fresh leaves) were taken from each layer and oven-dried at 70 degC for 2 days for leaves and for 7 days for branches and stem subsamples. The dry-to-fresh weight ratios of the subsample was used to calculate dry weight of each tree component for each layer.
Growth environment: 91-year-old secondary deciduous broadleaf forest regenerated after forest fire.
Other variables: Species name and family names 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 Utsugi2004 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.
