Journal Article

Responses of carbon gain and growth of <i>Pinus radiata</i> stands to thinning and fertilizing

D. W. Sheriff

in Tree Physiology

Volume 16, issue 6, pages 527-536
Published in print June 1996 | ISSN: 0829-318X
e-ISSN: 1758-4469 | DOI: https://dx.doi.org/10.1093/treephys/16.6.527
Responses of carbon gain and growth of Pinus radiata stands to thinning and fertilizing

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Thinning of forest stands is widely carried out to minimize the slowing of growth of individual stems that follows from increasing competition among trees as they become bigger. After thinning, there is an increase in the growth rate of remaining trees because of an increase in the availability of resources per tree. Often, there is also an increase in foliar efficiency (biomass increase/foliage amount). On sites where mineral nutrient supply is limiting, fertilizers may be applied, often in association with thinning, to boost productivity. Growth responses to fertilizer application depend on an adequate supply of other resources, but also involve nonlinear interactions among mineral nutrients and between nutrients and other growth-limiting environmental factors. The effects of thinning and fertilizing on the carbon gain and growth responses of Pinus radiata D. Don to availability of resources (light, mineral nutrients and water) and to changes in the canopy are discussed.

Keywords: foliar efficiency; light; mineral nutrients; productivity; water

Journal Article.  0 words. 

Subjects: Plant Sciences and Forestry

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