Presented by Tor-Gunnar Vågen, Geoinformatics Senior Scientist (CIFOR/ICRAF) during Putting tools and technology into farmers hands session of Digital tree planting 29 September 2020

1. The Regreening Africa App
a key innovation for monitoring of land restoration at scale
Tor-G. Vågen, Muhammad N. Ahmad,
Benard Onkware and Leigh Winowiecki

2. Citizen science data collection tool
Used by
(among others):
• Implementing
partners
• Scientists
• Extension agents
• Lead farmers
• Nursery managers

3. Farmer managed
natural regeneration
(FMNR)
Senegal • Users walk the boundary of fields with tree planting or FMNR interventions and
submit the geo-tagged field polygons.
• These farm polygons can then overlaid onto maps of land cover and
land health allowing us to assess the effectiveness of these interventions on
multiple aspects of land health.
• Potential applications of these assessments include soil carbon monitoring,
relating directly to climate neutrality goals, etc.
• Also, biodiversity within farming systems can be assessed and tracked.

4. Rwanda
Tree planting interventions recorded across
project intervention areas in Rwanda in 2020

5. Soil Organic Carbon (SOC) - a key indicator of land healthFractional vegetation cover
The data collected using the Regreening Africa App is combined with analytical
outputs to extract and assess land health information from farmers’ fields

6. Assessing interactions between multiple metrics of
ecosystem health across intervention areas
Map of soil organic
carbon for Rwanda.
Source: ICRAF GeoScience Lab

7. Thank you!
Contacts
t.vagen@cgiar.org
m.ahmad@cgiar.org
b.onkware@cgiar.org