| Database on artificial forests in the tropics | ||||||
| ID: Nouth Sumatra_other tree species-5 | ||||||
| 1. General information | ||||||
| Date of the investigation | : | February, 2003 | Plantation area (ha) |
: | 1.3 | |
| Plantation name | : | Karim Sembiri ng Block | Tree species | : | Gmelina arborea | |
| Region | : | North Sumatra | Family/Genus | : | Verbenaceae - Gmelina | |
| Altitude (m, asl) | : | 300 | Diameter at
breast height Maximum (cm) |
: | 16.5 | |
| Latitude | : | 3°02'10"S | Diameter at
breast height Minimum (cm) |
: | 10.5 | |
| Longitude | : | 98°14'38"E | Diameter at
breast height Average (cm) |
: | 13.5 | |
| Planted year and month | : | February, 1999 | Tree
height Maximum (m) |
: | - | |
| Planted spacing (m × m) |
: | 2.5 × 2 | Tree
height Minimum (m) |
: | - | |
| Survaival rate of planted trees (%) |
: | 94 | Tree
height Average (m) |
: | 7.2 | |
| 2. Site characteristics information | ||||||
| Land tenure | : | Private company | Expenditure (per ha) |
: | Rp840,000 | |
| Monthly temperature of the site (°C) |
: | (min.: 23.0, max.: 30.0) | Land preparation | : | - | |
| Monthly rainfall of the site (mm) |
: | 142 | Planting stock cost | : | Rp400,000 | |
| Dry season | : | - | Maintenance
cost (per ha per one month) |
: | Rp440,000 | |
| Slope | : | - | Potential area
for planting (ha) |
: | 10 | |
| Soil type | : | Red Yellow Podsolic | Damages | : | Fire | |
| Soil texture | : | Sandy clay loam | Remarks | : | No thinning | |
| Soil pH | : | 5.2 | ||||
| Soil depth | : | Deep | Vegetation and land utilization before planting | : | Corn plantation | |
| Water level | : | > 8 m | ||||
| 3. Seedling information | ||||||
| Seedling | : | Seedring | Size of planting hole (cm) | : | 15 × 15 × 15 | |
| Provenance | : | North Sumatra | Fertilization | : | Litter compost (one liter per hole) | |
| Potted | : | Pollybag | Weeding | : | Every two months | |
| Stock period | : | Five
months (Until growth on 30 cm high) |
Supplement planting | : | - | |
| Pot type/size | : | Pollybag (diameter: 10 cm, heighr: 13cm) |
Thining | : | - | |
| Forest crown type | : | Monoculture | Prevention | : | - | |
| Forest floor vegetation | : | Dense (> 90%) | ||||
| 4. Biomass information | ||||||
| BA (m2 ha-1) | : | - | Stem volume (m3 ha-1) | : | - | |
| Age (year) | : | - | With bark | : | - | |
| Actual density (trees ha-1) | : | - | Without bark | : | - | |
| Biomass (Mg ha-1) | : | - | ||||
| Stem | : | - | ||||
| Bark | : | - | ||||
| Branch | : | - | ||||
| Leaf | : | - | ||||
| Root | : | - | ||||
| Above ground | : | - | ||||