@article{fdi:010073140,
  title = {{C}ontrol of "blue carbon" storage by mangrove ageing : evidence from a 66-year chronosequence in {F}rench {G}uiana},
  author = {{W}alcker, {R}. and {G}andois, {L}. and {P}roisy, {C}hristophe and {C}orenblit, {D}. and {M}ougin, {E}. and {L}aplanche, {C}. and {R}ay, {R}. and {F}romard, {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{T}he role of mangroves in the blue carbon stock is critical and requires special focus. {M}angroves are carbon-rich forests that are not in steady-state equilibrium at the decadal time scale. {O}ver the last decades, the structure and zonation of mangroves have been largely disturbed by coastal changes and land use conversions. {T}he amount of time since the last disturbance is a key parameter determining forest structure, but it has so far been overlooked in mangrove carbon stock projections. {I}n particular, the carbon sequestration rates among mangrove successional ages after (re)establishment are poorly quantified and not used in large-scale estimations of the blue carbon stock. {H}ere, it is hypothesized that ecosystem age structure significantly modulates mangrove carbon stocks. {W}e analysed a 66-year chronosequence of the aboveground and belowground biomass and soil carbon stock of mangroves in {F}rench {G}uiana, and we found that in the year after forest establishment on newly formed mud banks, the aboveground, belowground and soil carbon stocks averaged 23.56 +/- 7.71, 13.04 +/- 3.37 and 84.26 +/- 64.14 (to a depth of 1 m) {M}g {C}/ha, respectively. {T}he mean annual increment ({MAI}) in the aboveground and belowground reservoirs was 23.56 x {A}ge(-0.52) and 13.20 x {A}ge(-0.64) {M}g {C} ha(-1) year(-1), respectively, and the {MAI} in the soil carbon reservoir was 3.00 +/- 1.80 {M}g {C} ha(-1) year(-1). {O}ur results show that the plant carbon sink capacity declines with ecosystem age, while the soil carbon sequestration rate remains constant over many years. {W}e suggest that global projections of the above-and belowground reservoirs of the carbon stock need to account for mangrove age structures, which result from historical changes in coastal morphology. {O}ur work anticipates joint international efforts to globally quantify the multidecadal mangrove carbon balance based on the combined use of age-based parametric equations and time series of mangrove age maps at regional scales.},
  keywords = {biomass ; carbon ; chronosequence ; coastal changes ; forest ageing ; mangrove ; soil ; {GUYANE} {FRANCAISE}},
  booktitle = {},
  journal = {{G}lobal {C}hange {B}iology},
  volume = {24},
  numero = {6},
  pages = {2325--2338},
  ISSN = {1354-1013},
  year = {2018},
  DOI = {10.1111/gcb.14100},
  URL = {https://www.documentation.ird.fr/hor/fdi:010073140},
}