Woodchipping in New Zealand

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A bulldozer working the woodchip pile at Port Chalmers Caterpillar D7 Port Chalmers, NZ.jpg
A bulldozer working the woodchip pile at Port Chalmers

Woodchipping in New Zealand is one of the sectors of the forestry industry and it attracted controversy in the 1990s when native trees were used as a source for the chipping.

Contents

Wood chip exports

The Ministry of Agriculture and Forestry collates figures on quantities of wood chip exports.

Wood chip exports [1]
YearHardwoodSoftwood
Quantity (BDU)Value ($)Quantity (BDU)Value ($)
199931,9796,672
200046,06910,198
200146,3179,838
20026,7211,278
200314,8282,130309,35144,912
200418,6361,869206,34529,868
200521,0764,125239,72933,772
200647,4389,606186,43629,832
200759,2208,888307,12151,493
200867,52517,670307,88165,844
200939,0099,668171,35735,971
One BDU (bone dry unit) of hardwood chips in roundwood equivalent is 2.25 cubic metres and weighs 1090 kilograms.

Controversy

Since the settlement of New Zealand by Māori and then by Europeans has seen a loss of 75% of the indigenous forest cover. With European settlement in the 19th century, large areas were cleared for pastoral farming and for logging. The export wood chip industry was the main cause of forest clearance on private land after 1970. By the 1980s, 95% of forest loss was due to wood chipping. The native forests were replanted with faster growing species such as the Pinus radiata . [2]

After protests from environmentalists the exporting of wood chips from indigenous forests was stopped by the government in 1996. [3]

See also

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References

  1. Ministry of Agriculture and Forestry – Quarterly Wood Chip Statistics
  2. Wilson, Geoff (1994). "Wood chipping of Indigenous Forest on Private Land in New Zealand 1969–1993". Australian Geographical Studies. 32 (2): 256–273. doi:10.1111/j.1467-8470.1994.tb00675.x.
  3. Taylor, Rowan (1997). Ian Smith (ed.). The State of New Zealand's Environment 1997. New Zealand: Ministry for the Environment. ISBN   0-478-09000-5 . Retrieved 11 November 2008.