>I write as a forestry student undertaking a post-graduate research >project, the aim of which is to develop pre-harvest inventory methods that forecast both total volume and potential log dimensions f >rom individual sale lots. The information currently provided on >stands tends to be, from the sawmillers' viewpoint, of limited value for There has been a lot of good work done on this in New Zealand. Unfortunately not all of it published in easily accessible ways. Some pointers: Goulding,C.J. and Lawrence,M.E. "Inventory Practice for Managed Forests". FRI Bulletin No.171. 1992. Levack,H. (ed) "1986 Forestry Handbook". New Zealand Institute of Foresters (Inc.). 1986. Goulding,C.J. and Shirley,C.J. "A method to predict the yield of log assortments for long term planning". In Elliott,D.A.(ed) "Mensuration for management planning of exotic forest plantations". NZ Forest Service, FRI Symposium No.20. 1979. Manley,B.R., Goulding,C.J. and Lawrence,M.E. "Stand assesment by log grades using MARVL". Ministry of Forestry, FRI Bulletin 132. 1986. Or contact Chris Goulding at goulding@fri.cri.nz Oscar Garcia - ogarcia@nancy.engref.fr Unite Dynamique des Systemes Forestiers Ecole Nationale du Genie Rural, des Eaux et des Forets (ENGREF) 14 rue Girardet, 54042 NANCY Cedex, FRANCE - Fax: +33 83 30 22 54
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