"There are only 64 million hectares left categorized as being in good condition or primary forests," Zulkfili said here on Wednesday.
He said the remaining forests must be preserved and there should be no more cutting.
"Now the forestry ministry is having the duty of replanting but the government could not do it alone," he said after planting a tree at the Ciliwung riverside area in Gunung Tikukur, Bogor.
He said without support it would take more than a hundred year for the government to finish vegetation of the denuded forest lands.
"The empty lands could be all green again in 25 years with support such as from the private sector and state companies," he said.(*/DWA)