Dannoura2006
Data contributor: Masako Dannoura
Email: dannoura@kais.kyoto-u.ac.jp
Address:
- Ecosystem Production and Dynamics, Department of Natural Resources, Graduate School of Global Enviromental Studies, Kyoto University, Yoshida-honmachi, Sakyo-ku, Kyoto 606-8051 Japan; Forest Utilization Lab. Division of Forest and Biomaterial Science, Graduate School of Agriculture, Kyoto University, Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto 606-8502, Japan
Citation: Dannoura M, Suzuki M, Kominami Y, Goto Y and Kanazawa Y (2006). 'Estimation of root biomass and root surface area in a broad-leaved secondary forest in the southern part of Kyoto Prefecture.' Journal of the Japanese Forest Society, 88, pp. 120-125.
DOI:
Abstract:
The dataset includes records for 4 individuals from 4 species belonging to 3 family(ies), presenting 2 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 | 4 | 35 | 35 | 35 |
| longitude | Longitude | deg | 4 | 136 | 136 | 136 |
| age | Age | yr | 1 | 21 | 21 | 21 |
| a.stba | Stem area at base | m2 | 4 | 0.0033 | 0.0055 | 0.18 |
| a.stbh | Stem area at breast height | m2 | 4 | 0.0017 | 0.0028 | 0.074 |
| h.t | Height | m | 3 | 5.2 | 7.2 | 8.6 |
| d.ba | Basal diameter | m | 4 | 0.065 | 0.084 | 0.47 |
| d.bh | Dbh | m | 4 | 0.047 | 0.06 | 0.31 |
| h.bh | Height of d.bh measurement | m | 4 | 1.3 | 1.3 | 1.3 |
| m.so | Aboveground mass | kg | 3 | 4.7 | 7.3 | 12 |
| m.rt | Total root mass | kg | 4 | 1.2 | 1.8 | 131 |
| m.to | Total mass | kg | 3 | 5.9 | 9.2 | 14 |
And locally within the country:
The sites sampled are:
| Location | Longitude | Latitude | Vegetation |
|---|---|---|---|
| Japan-Yamashiro- | 135.83 | 34.78 | Temperate forest |
The growing conditions of sampled plants was:
| Location | growingCondition |
|---|---|
| Japan-Yamashiro- | field wild |
| Species | Family | Pft |
|---|---|---|
| Quercus glauca | Fagaceae | evergreen angiosperm, deciduous angiosperm |
| Quercus serrata | Fagaceae | evergreen angiosperm, deciduous angiosperm |
| Ilex pedunculosa | Aquifoliaceae | evergreen angiosperm, deciduous angiosperm |
| Clethra barbinervis | Clethraceae | evergreen angiosperm, deciduous angiosperm |
Sampling strategy: In the November 2000 and September 2001, 16 trees were harvested in a forest adjacent to the Yamashiro Experimental Forest (Dannoura et al. 2006). Each tree was cut down and roots were excavated carefully. One sample tree (Ilex pedunculosa, DBH = 47.49 cm) had been uprooted by strong wind and lost some parts of roots.
Height: Tree height was measured after trees were cut down except Ilex pedunculosa tree with DBH = 47.49 cm, which was estimated from a allometric equation (Dannoura et al. 2006).
Biomass: Aboveground and root dry weights were measured after oven-dried at 95 degrees C for 48 hours (Dannoura et al. 2006). Biomass of each lost root in Ilex pedunculosa sample tree (DBH = 47.49 cm) was estimated from the root diameter of the end point of the remaining root and the allometric equation RW = 0.0738 d ^2.4652 where RW was dry weight (g) of a root with basal root diameter of d (mm). This equation was obtained from 23 root samples (d = 7.0-34.7 mm) collected from this tree.
Other variables: Root biomass data for trees reported in Goto et al. (2003) are merged with the data of Goto2013 by M.I. Ishihara. Only data for trees not reported in Goto et al. (2003) are listed here. 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 Dannoura2006 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.
