Semangkok
Coarse Woody Debris (CWD)
The Semangkok plot is 6-ha, rectangle shape with 200 m X 300m. We used a sample plot inventory method to estimate CWD stock. Seven 20 m × 100 m transects, which consisted of five 20 m × 20 m sample quadrats, were placed in the plot; each quadrat was a sampling unit, and all 35 were used for analysis (Figure 1). All CWD components with an end diameter of 10 cm or more were measured in each sampling quadrat from August to September of 2009 and 2010 (Sato et al. 2016).
Figure 1. Location of CWD samplings in the 6-ha plot. Contour interval is 10 m.
Data SetThis data file contains CWD data (csv format).
File FormatThis data file contains following data
Label |
Type | Explanation |
|---|---|---|
Plot Code
| Character | Identification code for each sampling plot |
Topography |
Category | Micro-topography unit in each sampling plot |
Altitude |
Numeric | Altitude in each sampling plot. Unit: m |
Inclination |
Numeric | Inclination of each sampling plot. Unit: degree |
Soil depth |
Numeric | Soil depth up to hard subsoil whose soil penetration resistance was more than 1.55 MPa in each sampling plot. All data were derived from Tange et al. (1998). Unit: cm |
AGB1993 |
Numeric | Aboveground biomass (AGB) of each sampling plot at 1993. The AGB values of living plants were calculated using the allometric equations developed by Chave et al. (2014). Unit: Mg/ha |
AGB2011 |
Numeric | Aboveground biomass (AGB) of each sampling plot at 2011. The AGB values of living plants were calculated using the allometric equations developed by Chave et al. (2014). Unit: Mg/ha |
Mortality input |
Numeric | CWD input due to mortality between 1993 and 2011 in each sampling plot. Unit: Mg/ha |
standing |
Numeric | Necromass of standing dead form in each sampling plot. Unit: Mg/ha |
snap |
Numeric | Necromass of snap form in each sampling plot. Unit: Mg/ha |
fallen |
Numeric | Necromass of fallen logs in each sampling plot. Unit: Mg/ha |
uproot |
Numeric | Necromass of uprooted form in each sampling plot. Unit: Mg/ha |
CWD |
Numeric | Total necromass (standing, snap, fallen log and uprooted) in each sampling plot. Unit:Mg/ha. |
- semangkok_cwd.csv (3 KB)
- Sato, T., Yagihashi, T., Niiyama, K., Rahman, K.A., Azizi, R.(2016) Coarse woody debris stocks and inputs in a primary hill dipterocarp forest, Peninsular Malaysia. Journal of Tropical Forest Science 28(5): 382-391.
- Chave, J., Réjou-Méchain, M., Búrquez, A., Chidumayo, E., Colgan, M. S., Delitti, W. B. C., . . . Vieilledent, G. (2014). Improved allometric models to estimate the aboveground biomass of tropical trees. Global Change Biology, 20(10):3177-3190.
- Tange, T., Yagi, H., Sasaki, S., Niiyama, K., & Kassim, A. R. (1998). Relationship between topography and soil properties in a hill dipterocarp forest dominated by Shorea curtisii at Semangkok Forest Reserve, Peninsular Malaysia. Journal of Tropical Forest Science 10(3): 398-409.