@article{fdi:010092527,
  title = {{B}asin-wide variation in tree hydraulic safety margins predicts the carbon balance of {A}mazon forests},
  author = {{T}avares, {J}.{V}. and {O}liveira, {R}.{S}. and {M}encuccini, {M}. and {S}ignori-{M}üller, {C}. and {P}ereira, {L}. and {C}arvalho {D}iniz, {F}. and {G}ilpin, {M}. and {M}arca {Z}evallos, {M}.{J}. and {S}alas {Y}upayccana, {C}.{A}. and {A}costa, {M}. and {P}{\'e}rez {M}ullisaca, {F}.{M}. and de {V}asconcellos {B}arros, {F}. and {B}ittencourt, {P}. and {J}ancoski, {H}. and {S}calon, {M}.{C}. and {M}arimon, {B}.{S}. and {O}liveras {M}enor, {I}mma and et al.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}ropical forests face increasing climate risk, yet our ability to predict their response to climate change is limited by poor understanding of their resistance to water stress. {A}lthough xylem embolism resistance thresholds (for example, {P}si 50) and hydraulic safety margins (for example, {HSM}50) are important predictors of drought-induced mortality risk little is known about how these vary across {E}arth's largest tropical forest. {H}ere, we present a pan-{A}mazon, fully standardized hydraulic traits dataset and use it to assess regional variation in drought sensitivity and hydraulic trait ability to predict species distributions and long-term forest biomass accumulation. {P}arameters {P}si50 and {HSM}50 vary markedly across the {A}mazon and are related to average long-term rainfall characteristics.



{B}oth {P}si 50 and {HSM}50 influence the biogeographical distribution of {A}mazon tree species. {H}owever, {HSM}50 was the only significant predictor of observed decadal-scale changes in forest biomass. {O}ld-growth forests with wide {HSM}50 are gaining more biomass than are low {HSM}50 forests. {W}e propose that this may be associated with a growth-mortality trade-off whereby trees in forests consisting of fast-growing species take greater hydraulic risks and face greater mortality risk. {M}oreover, in regions of more pronounced climatic change, we find evidence that forests are losing biomass, suggesting that species in these regions may be operating beyond their hydraulic limits. {C}ontinued climate change is likely to further reduce {HSM}50 in the {A}mazon with strong implications for the {A}mazon carbon sink.},
  keywords = {{AMAZONIE} ; {ZONE} {TROPICALE}},
  booktitle = {},
  journal = {{N}ature},
  volume = {617},
  numero = {7959},
  pages = {111--117},
  ISSN = {0028-0836},
  year = {2023},
  DOI = {10.1038/s41586-023-05971-3},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092527},
}