Biomass and nutrient accumulation at different growth rates in thinned plantations of Corsican pine

Regressions of weight of tree components on volume or volume increment were prepared using measurements from a crop of Pinus nigra var. maritima (Ait.) Melv. that had shown large growth responses to nitrogen fertilizer. These regressions were solved for the appropriate values of volume or volume inc...

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Bibliographic Details
Published in:Forestry (London) 1980, Vol.53 (1), p.23-39
Main Authors: Miller, H.G, Miller, J.D, Cooper, J.M
Format: Article
Language:English
Subjects:
fertilizers
forest soils
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Summary:Regressions of weight of tree components on volume or volume increment were prepared using measurements from a crop of Pinus nigra var. maritima (Ait.) Melv. that had shown large growth responses to nitrogen fertilizer. These regressions were solved for the appropriate values of volume or volume increment from published yield tables for this species, to give tables in terms of harvestable biomass of different tree components, by age, for Yield Classes 6 to 16. Using values for nutrient concentration obtained from the experimental crop, similar tables were prepared giving the weights of N, P, K, Ca, Mg, S, Mn and Cu that would be removed on harvesting any component. Nutrient losses estimated from these tables are discussed and compared with the known input of nutrients in rainfall and from other sources.
ISSN:0015-752X
1464-3626
DOI:10.1093/forestry/53.1.23