Definition Afforestation is the process of planting trees, either to replace those removed during forest harvesting or as a means of land use conversion. Afforestation is part of several natural water retention measures as it can contribute to a more natural and sustainable hydrologic cycle. Links Relation type Related Concept Continuous Cover forestry Relation type Related Concept Forest Harvesting Relation type Related Concept Forests as large-scale water pumps Relation type Related Concept Urban forests parks Type of action Afforestation