SLU news

Trees in African drylands contribute to deep soil and groundwater recharge

Published: 11 October 2019

Trees in African drylands can promote deep soil and groundwater recharge in a future climate with more intense rainfall

Climate-change projections indicate that West Africa will experience an increase in the number of extreme rainfall events in the 21st century. Results from a study carried out by scientists from SLU, World Agroforestry (ICRAF), and Université de Ouagadougou, suggest that tree cover is key not only to increase soil and groundwater recharge but also to avoiding escalated land degradation. In absence of trees, there is a higher risk for rainfall to be lost either through evaporation or overland flow. In contrast, when trees are present, rainfall is more likely to infiltrate into the soil and contribute to deep soil and groundwater recharge.

Read the full media release (World Agroforestry web page)

The study was funded by the Swedish Research Council (Vetenskapsrådet) and the Swedish Research Council Formas.

Related pages:


SLU Global supports and facilitates SLU's commitment to improve the situation for people in low-income countries based on the Global Goals of the Agenda 2030 for sustainable development.

SLU Global
Vice-Chancellor's Office

Agricultural Sciences for Global Development
PO Box 7005, SE-750 07 Uppsala
Visiting address: Almas Allé 7 
Subscribe to our newsletter and follow us in social media.                                  

Page editor: