Official website of the New Zealand Farm Forestry Association

Forest Sustainability

From New Zealand Tree grower August 2014

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About Tenco
Tenco is one of New Zealand’s largest exporters of forest products. We have built to this position since 1991 when the company was set up to export lumber to growing Asian export markets.  Experience and reputation count; from small beginnings Tenco has become the largest independent exporter of New Zealand lumber and New Zealand’s 4th largest log exporter.  Tenco has a regular shipping program of their own log vessels and in combination with these and other ships currently calls  at 7 New Zealand ports (5 North Island and 2 South Island).
Tenco buys standing forests.  Tenco currently has a number of forests which they purchased at harvestable age to log over a number of years for export and domestic markets.  Tenco also regularly buys smaller tracts of forest to harvest immediately or immature forests to hold until harvest time.  Tenco is interested in broadening  the  base of owners from whom it purchases forests and stands of trees.  A deal with Tenco is a certain transaction.  The owner and Tenco will agree on a value of the tree crop and then Tenco will pay this amount to the owner either in a lump sum amount or on rate per volume unit out-turn from the forest depending on the nature of the tree crop.
Tenco knows there are a lot of farmers who have trees that are close or ready to harvest and will be asking themselves how they should proceed with the sale of their trees.  For some farmers the kind of certain transaction with money in the bank could well be appealing. Tenco is actively interested in buying harvestable forests or trees from areas including all the North Island (except the Gisborne and East Coast districts) and Nelson & Marlborough in the South Island .
If you own a forest in this area (16 years and older) and are ready to enter into this kind of agreement Tenco is interested to develop something with you.
Please contact: 
Work: +64 7 357 5356  Mobile:  +64 21 921 595

When it comes to forestry and the wood supply few appear to understand the concept of sustainability. Brian Allison, the now deceased NZ Forest Products economist in the 1960's to 1980's, used an analogy to explain the concept of sustainability. As some lizards are capable of regenerating their tail in the event of it being broken off, a lizard could eat their tail providing they ate them at a rate no greater than one which the tail could regrow. The results of consuming at a rate greater than the new regrowth would be disastrous. Similarly, for a sustainable normal forest the annual wood harvest should be no more than the annual increment.

The problem in forestry is that the determination of wood growth is not easy. I liken a sustainable mature managed forest to money in a bank deposit − the capital. Providing that the harvest is no more than additional growth − the interest − then the capital remains intact. Unlike money in a bank the problem is determining what the forest capital is and what additional growth is.

A few days ago I had a phone call from an undergraduate from my old college at Oxford, in part because the college wanted confirmation I was still alive. In our discussion the young lady expressed surprise that forestry was once offered at Oxford. It no longer is. She seemed even more surprised that I had gained a doctorate in the subject. She questioned why forestry should be offered by a university. My response was that to be productive forests had to be managed.

Few comprehend that with almost no new planting this century, with plantations being converted to dairy farms and the likelihood that most of the plantations established in the 1990's will not be replanted, the wood harvest cannot be sustained and seems certain to eventually decline. Forestry concerns appear to have disappeared below the horizon and are now rarely discussed publicly. The profession, forest owners and the wood industry must do much more to promote discussion of forest and forestry problems by the wider public and especially by the politicians.

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