@article{fdi:010057059,
  title = {{T}ree shape plasticity in relation to crown exposure},
  author = {{H}arja, {D}. and {V}incent, {G}r{\'e}goire and {M}ulia, {R}. and van {N}oordwijk, {M}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}rees outside closed forest stands differ in the relation between stem diameter, height and crown volume from trees that grew with neighbours close by. {W}hether this plasticity in tree shape varies between species in relation to their light requirement is unknown. {W}e purposefully sampled 528 trees ranging 5-100 cm diameter at breast height growing in a range of light conditions. {A}cross ten broad-leaved species observed in {S}umatra or {K}alimantan, a generic relationship was found between light exposure of the crown and a light-dependent a (l) parameter that modifies the height-diameter allometric equation ({H} = a (l) {D} (b) ) from those for closed stands. {I}n our results, vertical stretching is well predicted by light availability. {I}n fully open conditions, trees are on average 31% shorter for the same diameter than under (partial) shade. {M}ost of the stretching response occurs in all species as soon as some degree of lateral shading occurs. {T}he response, however, varies by species (8-44% reduction) in a way apparently unrelated to species' successional status. {C}rown volume varied less than stem height in its relationship with stem diameter across all light conditions tested. {T}he scaling of crown volume with stem diameter, however, differed markedly between tree species.},
  keywords = {{T}ree height ; {C}rown shape ; {H}umid tropics ; {W}ood density ; {A}llometry},
  booktitle = {},
  journal = {{T}rees-{S}tructure and {F}unction},
  volume = {26},
  numero = {4},
  pages = {1275--1285},
  ISSN = {0931-1890},
  year = {2012},
  DOI = {10.1007/s00468-012-0703-x},
  URL = {https://www.documentation.ird.fr/hor/fdi:010057059},
}