How to develop an allometric model without cutting down the trees?
I mean if it is possible from diameter at breast,woody density derived from the standing trees,height and crown cover to develop an allometric equation.
It is not easy.
1) You can generic equations. There are collections for equations from different species like:
Matieu Henry, Nicolas Picard, Carlo Trotta, Raphaël J. Manlay, Riccardo Valentini, Martial Bernoux & Laurent Saint-André: Estimating tree biomass of sub-Saharan African forests: a review of available allometric equations. Silva Fennica vol. 45 no. 3B article id 38. https://doi.org/10.14214/sf.38
(Note that some of these biomass equations might not be particularly good),
2) You could also base your biomass equations on sampling of branches while leaving the tree intact. This works especially if you know the stem biomass by previous work. You would need to base scaling on climbing the tree tree or counting brnaches from the ground and you would need to build appropriate scaling procedures. You might see some of the papers of Robert Schneider and me to have examples (althought we cut the trees..)
http://chave.ups-tlse.fr/chave/chave-gcb14.pdf
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032008000400012
these article may help you
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