akar.earthVM0047 Census-Based Approach for Smallholder Plantings
VM0047 census-based approach explained: when it applies, how every tree is measured, and how Indonesian smallholder and agroforestry plantings can use it.
The VM0047 census-based approach quantifies ARR removals by counting and measuring every planted tree, and it applies to projects that do not occur in forests and do not involve land-use change. It suits Indonesian smallholder plantings, such as trees added to coffee, cocoa or mixed gardens, where the farm remains a farm.
Where it fits in VM0047
VM0047 v1.1, effective for all projects since 14 May 2025, offers two approaches:
| Feature | Area-based | Census-based |
|---|---|---|
| Typical setting | Non-forest to forest conversion, or existing forest | Non-forest land with no land-use change |
| Measurement | Remote sensing plus sample plots | Every tree measured |
| Baseline and additionality | Dynamic performance benchmark from control plots | Rules specific to the census approach |
| Typical project | Block reforestation, assisted regeneration | Farm trees, agroforestry, boundary planting |
See the area-based approach page for the alternative.
How the census approach works
In outline:
- Register participants and land. Each farm or planting site is mapped and linked to a participant. See farmer registration and consent.
- Record every tree. Each tree gets an identity, location, species and planting date.
- Measure trees periodically. Diameter and, where needed, height are measured at each monitoring event.
- Calculate biomass and carbon with allometric equations, then convert to CO2.
- Apply baseline, leakage and uncertainty rules from the methodology, and the buffer contribution from the non-permanence risk assessment.
Because every tree is measured, sampling error is not the main uncertainty source. Measurement error, allometric model error and data management become the focus.
Read the current VM0047 document for the census approach’s specific conditions, including any limits on project scale, baseline treatment and additionality tests. We do not restate those clauses here.
Who uses it
- Smallholder tree-planting programs, often run by cooperatives, NGOs or supply-chain companies.
- Agroforestry programs adding shade or timber trees to existing crops.
- Companies pursuing value-chain removals that also want certified credits, subject to claim rules.
Key requirements in practice
- Eligibility. Confirm that the land is not forest and that the project does not change land use. Agroforestry mosaics need careful classification against Indonesia’s forest definitions.
- Unique tree identification, so each tree can be followed over time.
- Measurement protocols that field teams can apply consistently.
- Allometry. Use pantropical models such as Chave et al. (2014) with wood density, or validated species-specific equations. See allometric equations.
- Survival tracking. Dead trees must be recorded. See nursery and survival rates.
- Audit trail. Auditors sample trees and compare with records.
How it applies in Indonesia and Southeast Asia
Indonesia has millions of smallholder farms where trees can be added without changing land use: coffee in Sumatra and Sulawesi, cocoa in Sulawesi, rubber agroforestry in Sumatra and Kalimantan, and mixed home gardens across Java. These fit the census logic well.
Practical points:
- Digital measurement is essential. A full census across thousands of farms needs mobile data collection, geotagged photos and quality control. See mobile tree measurement.
- Aggregation. Many small farms are combined into one project. See smallholder ARR aggregation.
- Land rights. Smallholders may lack formal titles. Permenhut 6/2026 names communities and social forestry as legitimate participants, but carbon rights still need clear documentation.
- EUDR overlap. The same plot polygons and tree data can support EUDR due diligence for coffee, cocoa and rubber, which the European Commission says applies from 30 December 2026. See one dataset for carbon and EUDR.
- Domestic rules. Perpres 110/2025 is the legal anchor; exchange-traded units must be recorded in SRUK.
A pre-validation checklist
- Every participant and planting site mapped and consented.
- Unique tree IDs in the field and in the database.
- Measurement protocol tested with field teams.
- Survival and replanting records maintained.
Run a small pilot census before scaling, to test the time per tree and the error rate.
Common pitfalls
- Misclassifying land. If plantings convert land to forest, the area-based approach may apply instead.
- Lost tree identity. Without unique IDs, remeasurement becomes guesswork.
- Unrealistic survival. Smallholder planting often loses trees early; plan for it.
- High per-tree cost. Efficient field workflows decide whether the project pays.
Relationship to ICVCM CCP status
Verra states that VM0047 v1.0 and v1.1 are CCP-Approved, and Verra is CCP-Eligible. Census-based projects under these versions can therefore reach the label, subject to project-level conditions. See CCP label.
Next steps
Visit the agroforestry hub, the standards hub, or try the tree CO2 calculator.
Frequently asked questions
What is the VM0047 census-based approach?
It is the second quantification approach in Verra's VM0047, for ARR projects that do not occur in forests and do not involve land-use change. Instead of sampling plots, the project counts and measures every tree.
Which projects use the census-based approach?
Typical examples are trees planted on farms, along boundaries, in agroforestry systems or in other non-forest settings where the land stays in its existing use.
How is additionality shown under the census-based approach?
The census-based approach has its own rules for additionality and the baseline, different from the area-based dynamic performance benchmark. Read the current VM0047 text for the requirements.
Is the census-based approach practical for thousands of smallholders?
Yes, if tree measurement is digitised. Mobile apps, unique tree IDs and geotagged photos make a full census feasible and auditable across many small farms.