The Collaborative International Dictionary of English v.0.48:
Reforestation \Re`for*est*a"tion\, n replanting with trees; reconversion into a forest; the act of reforesting. [PJC]WordNet (r) 3.0 (2006):
reforestation n 1: the restoration (replanting) of a forest that had been reduced by fire or cutting [syn: reforestation, re- afforestation]