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Vanclay, J.K.[Assessing the sustainability of timber harvests from natural forests: limitations of indices based on successive harvests]Assessing the sustainability of timber harvests from natural forests: limitations of indices based on successive harvests

Successive inventories of a silvicultural experiment in terra firme rain forest within the Tapajós National Forest in the Brazilian Amazon are examined to provide guidelines for operational forest management on a sustainable basis. The experiment was logged in 1979 without additional silvicultura...


Silva, J.N.M.Carvalho, J.O.P. deLopes, J.do.C.A.Almedia, B.E. deCosta, D.H.M.Oliveira, L.C. deVanclay, J.K.Skovsgaard, J.P.[Growth and yield of a tropical rainforest in the Brazilian Amazon 13 years after logging]Growth and yield of a tropical rainforest in the Brazilian Amazon 13 years after logging

Model evaluation should include qualitative as well as quantitative examinations of the model. The qualitative parts should comprise a critical appraisal of model logic as well as theoretical and biological realism of the model. The quantitative parts should comprise statistical tests and compari...


Soares, P.Torne, M.Skovsgaard, J.P.Vanclay, J.K.[Evaluating a growth model for forest management using continuous forest inventory data]Evaluating a growth model for forest management using continuous forest inventory data

Use-values have been advocated as a tool to compare the value of not just individual species, but also of plant families and forest types to local people, e.g. to identify species or habitats in need of special management or conservation. We estimated use-values in three forest types (upper resti...


Kvist, L.P.Andersen, M.Hesselsoe, M.Vanclay, J.K.[Estimating use-values and relative importance of Amazonian flood plain trees and forests to local inhabitants]Estimating use-values and relative importance of Amazonian flood plain trees and forests to local inhabitants

A new method is proposed for estimating vitality or growth potential for saplings of Scots pine (Pinus sylvestris L.), based on height, diameter and height increment. A two-stage process was used to establish the vitality index. The logarithms of height, diameter and height increment were regress...


Oreshkin, D.G.Skovsgaard, J.P.Vanclay, J.K.[Estimating sapling vitality for Scots pine (Pinus sylvestris L.) in Russian Karelia]Estimating sapling vitality for Scots pine (Pinus sylvestris L.) in Russian Karelia

Ten papers from the full proceedings of the above conference providing results of more complete work on the diverse aspects of regeneration and early growth. The conference discussed the theme broadly and encompassed theoretical and applied aspects, plantation and 'close-to-nature' silviculture, ...


Skovsgaard, J.P.Vanclay, J.K.[Regeneration success and early growth of forest stands and selected papers from an IUFRO Conference held in Copenhagen in June 1996]Regeneration success and early growth of forest stands and selected papers from an IUFRO Conference held in Copenhagen in June 1996

Two commercial laser dendrometers were tested under controlled and field conditions, and contrasted with alternative instruments. Testing focused on height Measurement, but also considered distance and remote diameter measurements. Both laser instruments gave very precise estimates, but showed so...


Skovsgaard, J.P.Johannsen, V.K.Vanclay, J.K.[Accuracy and precision of two laser dendrometers]Accuracy and precision of two laser dendrometers

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