Forest owners are also benefiting from cheaper transport with lower fuel costs and a drop in demand for cargo space, Mr Wilton said - partly caused by a drop-off in Australian mineral exports to China.
Forestry demand is driven by China, India, Korea, Japan, Mr Wilton said, with demand in India particularly improving.
On the downside a drop-off in China's economy is "quite worrying", Mr Wilton said, and the low New Zealand dollar reduces returns to New Zealand.
Mr Wilton also welcomed the expansion of the rail forestry hub south of Masterton, increasing its capacity from 3500 tonnes to 12,000 tonnes.
"That represents an awful lot of truck movements that won't happen."
The rail hub could also help ease the "bottleneck" for logs at the Wellington port itself, Mr Wilton said, especially over the peak period of the summer.