Quantifying the carbon in harvested wood products from logs exported from New Zealand

by Bruce Manley and David Evison, exported from an article in New Zealand Journal of Forestry, November 2017

In 2015, New Zealand exported 15.4 million m3 of logs, some 53% of the national harvest, with 96% going to China, South Korea and India. Models have been developed to quantify the harvested wood products (HWP) manufactured in each country from these logs and the lifecycle of the HWP produced. The model allows the decay curve of the HWP carbon stock to be estimated. Carbon stocks in the products manufactured in China from New Zealand logs are halved in just under two years. Some 46% of the HWP is lumber and plywood used for temporary construction, while 13% is lumber and plywood used for packaging, which is also short-lived.

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