| Database on artificial forests in the tropics | ||||||
| ID: Sabah_Acacia spp-15 | ||||||
| 1. General information | ||||||
| Date of the investigation (yy/mm) |
: | July, 2002 | Plantation area (ha) |
: | 54.0 | |
| Plantation name | : | Kg Mantanau Kota Belud | Tree species | : | Acacia mangium | |
| Region | : | Kg Mantanau Kota Belud Sabah | Family/Genus | : | Leguminosae - Acacia | |
| Altitude (m, asl) | : | 75 | Diameter at
breast height Maximum (cm) |
: | 38.5 | |
| Latitude | : | 6°30'70''N | Diameter at
breast height Minimum (cm) |
: | 19.2 | |
| Longitude | : | 116°34'71''E | Diameter at
breast height Average (cm) |
: | 28.1 | |
| Planted year and month (yy/mm) |
: | June, 1984 | Tree
height Maximum (m) |
: | 26.8 | |
| Planted spacing (m × m) |
: | 3 × 3 | Tree
height Minimum (m) |
: | 18.6 | |
| Survaival rate of planted trees (%) |
: | 39 | Tree
height Average (m) |
: | 24.2 | |
| 2. Site characteristics information | ||||||
| Land tenure | : | Government (SAFODA) | Expenditure (per ha) |
: | R2,000 | |
| Monthly temperature of the site (°C) |
: | (min.: 24.0, max.: 31.0) | Land preparation | : | R15 | |
| Monthly rainfall of the site (mm) |
: | (annual: 2,700) | Planting stock cost | : | R0.4 per tree | |
| Dry season | : | February - March | Maintenance cost | : | R60 | |
| Slope | : | 6 - 13% | Potential area
for planting (ha) |
: | - | |
| Soil type | : | Orthic acrisol | Damages | : | Fire | |
| Soil texture | : | Sandy clay loam | Remarks | : | None | |
| Soil pH | : | 4.4 | ||||
| Soil depth | : | Shallow | Vegetation and land utilization before planting | : | Secondary forest | |
| Water level | : | Low | ||||
| 3. Seedling information | ||||||
| Seedling | : | Seedring | Size of planting hole (cm) | : | Ø15 × 25 | |
| Provenance | : | - | Fertilization | : | 50 g NPK per tree | |
| Potted | : | Potted | Weeding | : | Eight times for two years | |
| Stock period | : | Two months (> 40 cm height) | Supplement planting | : | None | |
| Pot type/size | : | Pot (diameter: 7.6 cm, height: 20.3 cm) |
Thining | : | None | |
| Forest crown type | : | Single story | Prevention | : | Firebreak construction | |
| Forest floor vegetation | : | Sparse | ||||
| 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 | : | - | ||||