| Database on artificial forests in the tropics | ||||||
| ID: Sabah_Acacia spp-22 | ||||||
| 1. General information | ||||||
| Date of the investigation (yy/mm) |
: | May, 2003 | Plantation area (ha) |
: | 24.0 | |
| Plantation name | : | Plot 01, Alasu 7 | Tree species | : | Acacia mangium | |
| Region | : | Alasu 7, Bengkoka, Sabah | Family/Genus | : | Leguminosae - Acacia | |
| Altitude (m, asl) | : | - | Diameter at
breast height Maximum (cm) |
: | 36.0 | |
| Latitude | : | - | Diameter at
breast height Minimum (cm) |
: | 11.6 | |
| Longitude | : | - | Diameter at
breast height Average (cm) |
: | 22.9 | |
| Planted year and month (yy/mm) |
: | February, 1988 | Tree
height Maximum (m) |
: | 30.0 | |
| Planted spacing (m × m) |
: | 2 × 4 | Tree
height Minimum (m) |
: | 13.5 | |
| Survaival rate of planted trees (%) |
: | 100 | Tree
height Average (m) |
: | 23.9 | |
| 2. Site characteristics information | ||||||
| Land tenure | : | Government (SAFODA) | Expenditure (per ha) |
: | - | |
| Monthly temperature of the site (°C) |
: | (min.: 24.0, max.: 31.0) | Land preparation | : | R185 | |
| Monthly rainfall of the site (mm) |
: | (annual: 2,606) | Planting stock cost | : | R0.4 per tree | |
| Dry season | : | March - July | Maintenance cost | : | R210 | |
| Slope | : | - | Potential area
for planting (ha) |
: | - | |
| Soil type | : | - | Damages | : | - | |
| Soil texture | : | - | Remarks | : | - | |
| Soil pH | : | - | ||||
| Soil depth | : | - | Vegetation and land utilization before planting | : | Secondary forest | |
| Water level | : | - | ||||
| 3. Seedling information | ||||||
| Seedling | : | Seedring | Size of planting hole (cm) | : | - | |
| Provenance | : | - | Fertilization | : | - | |
| Potted | : | Potted | Weeding | : | - | |
| Stock period | : | Two months (> 40 cm height) | Supplement planting | : | - | |
| Pot type/size | : | Pot (diameter: 7.6 cm, height: 20.3 cm) |
Thining | : | - | |
| Forest crown type | : | Single story | Prevention | : | - | |
| Forest floor vegetation | : | Creeping plants, ferns and shrubs | ||||
| 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 | : | - | ||||