1 Introduction
2 Material and methods
2.1 The study site: Tanjung Jabung Barat (Tanjabar) district
2.2 Planning for a low-emission development pathway in Tanjabar
2.3 Estimating the uncertainty of aboveground C emission estimates at different spatial resolutions
2.4 Exploring stakeholders’ views on fair distribution of benefits to be gained from REDD+ schemes
3 Results
3.1 Low emission development plan in Tanjabar: local planners’ views
Development zones1
| Area (km2) | Existing development plan | Low emission development plan2
|
---|---|---|---|
Mining concession | 12.5 | To operate all current mining concession areas existing land use will be converted to open areas. Mining operations will adhere to land reclamation and land restoration policies | n.a |
Production forest3
| 75.6 | Non-concession areas will be developed as buffer zones in the form of community forests or ecotourism forests. | Maintain undisturbed forest area Establish rubber systems in non-forested areas |
Limited production forest4
| 340.1 | Non-concession areas will be developed as buffer zones in the form of community forests or ecotourism forest. | |
Industrial forest plantations | 1563.0 | All land will be converted to Acacia mangium
5
plantations except for settlements, oil palm systems and tree-based systems that already exist in the area | Avoid conversion of primary forest to acacia, maintain existing smallholders’ tree-based systems and expedite planting acacia in shrub and grassland areas within the concession zone (5 % of total landscape area) |
Protected area | 109.7 | The protected area will be maintained as it is | n.a |
Peatland protected forest | 120.2 | Forested area will be protected and oil palm systems will be converted to mixed tree-based systems by planting jelutung (Dyera costulata
6). | Increase effort to maintain existing forest area and establish Dyera costulata systems. |
Big scale oil palm concession | 906.6 | Establishing large-scale oil palm plantations | Prohibit conversion of forest to oil palm (2 % of total landscape area) |
Settlement | 21.0 | Expand and develop as needed | n.a |
Irrigated agricultural land | 231.3 | Establishing paddy rice systems will be a priority | n.a |
Dryland agriculture | 734.0 | Establishing tree-based systems such as oil palm, rubber, fruit and coconut | n.a |
Other land uses | 448.7 | Establishing tree-based systems such as oil palm, rubber, fruit and coconut | n.a |
Forest park7
| 18.8 | All land will be converted to rubber systems | n.a |
3.2 Scale effect on the distribution of C emission estimates
3.3 Scale effects on uncertainty of C estimates
Spatial resolution (m) | Standard deviationa (Mg.CO2 eq.ha-1) | Coefficient of variation (uncertainty) (%)a
|
---|---|---|
100 | 93.5 | 81.54 |
200 | 47.3 | 41.37 |
300 | 30.1 | 26.31 |
400 | 21.6 | 18.91 |
500 | 16.8 | 14.59 |
1,000 | 5.7 | 4.91 |
2,000 | 3.6 | 3.11 |
5,000 | 1.2 | 1.05 |
10,000 | 0.7 | 0.60 |
20,000 | 0.4 | 0.34 |
30,000 | 0.3 | 0.22 |