Reforestation

n. process of replanting trees, reestablishment of a forest

Reforestation is the restocking of existing forests and woodlands which have been depleted, with native tree stock. The term reforestation can also refer to afforestation, the process of restoring and recreating areas of woodlands or forest that once existed but were deforested or otherwise removed or destroyed at some point in the past. The resulting forest can provide both ecosystem and resource benefits and has the potential to become a major carbon sink.
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Noun
1. the restoration (replanting) of a forest that had been reduced by fire or cutting
(synonym) re-afforestation
(hypernym) reclamation, renewal, rehabilitation
(derivation) reforest

n. reafforestation

Replanting of forests on lands that have recently been harvested.