akar.earthForest Carbon and EUDR in South Sumatra
Forest carbon in South Sumatra: OKI peat, Sembilang mangroves, rubber, palm oil, pulpwood and robusta coffee, project types and EUDR exposure explained.
South Sumatra pairs large east coast peat and mangrove systems with a dense smallholder economy of rubber, oil palm and robusta coffee. Peat rewetting, mangrove conservation around Sembilang and agroforestry are the main carbon project types, and the province has some of Indonesia’s highest EUDR exposure for rubber and coffee.
Forest and land cover profile
The province spans from the Bukit Barisan highlands in the west, through wide lowlands drained by the Musi river system, to the coastal swamps facing Bangka Strait. Lowland dipterocarp forest once covered the plains; little remains outside protected areas and restoration licences. Hill and montane forest survives in the western highlands, including parts of Kerinci Seblat National Park in the north-west and protection forests around Pagar Alam and Mount Dempo.
Part of a lowland ecosystem restoration area extends across the border from Jambi, showing how restoration licences can be used in degraded lowland forest.
Peat and mangroves
South Sumatra has extensive peat in Ogan Komering Ilir (OKI), Banyuasin and Musi Banyuasin. Much of it has been drained for pulpwood and oil palm. OKI burned heavily in 2015, and the province has been a national peat restoration priority since then.
Sembilang National Park in Banyuasin protects one of the largest mangrove areas on Sumatra’s east coast, together with peat swamp forest behind it. With Berbak in Jambi it forms the Berbak-Sembilang biosphere reserve. The coast is also an important stopover for migratory shorebirds.
Peat projects here must deal with fire risk and with hydrological units that cross licence boundaries. See peatland REDD+ and peat restoration rules.
Main commodities and deforestation drivers
- Rubber: South Sumatra is one of Indonesia’s largest natural rubber producers, almost all from smallholders.
- Oil palm: estates, plasma and independent smallholders across the lowlands, including on peat.
- Pulpwood: acacia plantations on peat and mineral soil supplying pulp production in the province.
- Coffee: robusta from the highlands of Pagar Alam, Lahat, Muara Enim (Semende) and OKU Selatan is a large share of Indonesia’s robusta. See robusta coffee.
- Coal: open-cut mining in the central districts.
Drivers of loss include plantation development on peat, fire, encroachment of coffee into highland protection forest and coal mining.
Which carbon project types fit
| Project type | Fit in South Sumatra | Main constraint |
|---|---|---|
| Peat rewetting and conservation | OKI, Banyuasin, Musi Banyuasin | Fire, shared hydrology with plantations |
| Mangrove conservation and restoration | Sembilang coast, Banyuasin estuaries | Pond conversion, remote access |
| Rubber agroforestry | Lowland smallholder gardens | Small plots, aggregation |
| Coffee agroforestry | Highland robusta districts | Forest estate legality |
Rubber and coffee agroforestry are where carbon and EUDR work overlap most. Mapping farms once can serve both. See rubber agroforestry and the agroforestry hub.
EUDR exposure
- Rubber: rubber passes from tappers to village dealers to crumb rubber factories in Palembang. Each tapper’s garden needs geolocation. See EUDR and rubber.
- Coffee: robusta from the highlands is often traded through Lampung and mixed with coffee from Bengkulu and Lampung. Mass balance is not accepted, so exporters need segregated, traceable lots. See EUDR and coffee.
- Palm oil and wood: standard plot geolocation, plus legality checks for plantings on peat or inside forest estate.
The 31 December 2020 cut-off matters most in highland coffee districts, where new gardens have expanded into forest.
Social forestry and customary land
Social forestry licences are widely used in the highlands, where community forests (hutan kemasyarakatan) give coffee farmers inside protection forest a legal basis to farm, usually with tree-planting obligations. Village forests in the lowland peat have been granted to support fire prevention.
Customary communities, including Semende communities with their own land inheritance rules (tunggu tubang), hold claims in the highlands. Permenhut 6/2026 confirms social forestry groups and customary communities as legitimate carbon participants. See social forestry carbon.
Measurement challenges
South Sumatra’s project types need different measurement approaches. Peat projects depend on water table monitoring with dipwells or loggers, subsidence measurement and burned area mapping, because most emissions come from oxidising and burning peat rather than from trees. Mangrove projects need soil core sampling in addition to tree measurement. Rubber and coffee agroforestry need plot-level tree inventories and species-appropriate allometry, since rubber trees and shade trees differ in wood density and form. Planning these methods at the feasibility stage avoids costly redesign at validation.
Practical next steps
Screen sites against peat hydrological units, forest estate status and fire history. Our feasibility and eligibility service covers this. Compare with neighbouring Lampung, and see the forest carbon hub for project types.
Frequently asked questions
Which carbon project types fit South Sumatra?
Peat rewetting and conservation in Ogan Komering Ilir and Banyuasin, mangrove conservation around Sembilang, rubber agroforestry in the lowlands and robusta coffee agroforestry in the Bukit Barisan highlands.
Why is South Sumatra important for EUDR rubber compliance?
South Sumatra is one of Indonesia's largest natural rubber producers, almost entirely from smallholders. Plot-level geolocation for thousands of small gardens is the core compliance challenge.
Were South Sumatra's peatlands affected by the 2015 fires?
Yes. Ogan Komering Ilir was one of the worst-affected districts in 2015, which made the province a national peat restoration priority.