@article{fdi:010092041,
  title = {{I}nteractions between soil and other environmental variables modulate forest expansion and ecotone dynamics in humid savannas of {C}entral {A}frica},
  author = {{S}agang, {L}. {T}. and {T}cheferi, {I}. and {P}loton, {P}ierre and {L}ibalah, {M}. and {S}imo-{D}roissart, {M}. and {S}irri, {N}. and {D}auby, {G}illes and {N}gansop, {E}. and {B}issek, {J}. {P}. and {K}amdem, {N}. and {M}ofack, {G}. {I}. {I}. and {Z}ebaze, {D}. and {L}eblanc, {H}ugo and {D}jonko, {F}. and {S}onk{\'e}, {B}. and {B}arbier, {N}icolas and {C}outeron, {P}ierre},
  editor = {},
  language = {{ENG}},
  abstract = {{F}orest expansion into savanna is a pervasive phenomenon in {W}est and {C}entral {A}frica, warranting comparative studies under diverse environmental conditions. {W}e collected vegetation data from the woody and grassy components within 73 plots of 0.16 ha distributed along a successional gradient from humid savanna to forest in {C}entral {A}frica. {W}e associated spatially collocated edaphic parameters and fire frequency derived from remote sensing to investigate their combined influence on the vegetation. {S}oil texture was more influential in shaping savanna structure and species distribution than soil fertility, with clay-rich soils promoting higher grass productivity and fire frequency. {S}avanna featuring woody aboveground biomass surpassing 40 {M}g ha-1 could escape the grass-fire feedback loop, by depressing grass biomass below 4 {M}g ha-1. {T}his thicker woody layer also favoured the establishment of fire-tolerant forest pioneers, which synergically contributed to the expansion of forests. {C}onversely, savannas below this fire suppression threshold sustained a balance between trees and grasses through the grass-fire feedback mechanism. {T}his hysteresis loop, particularly pronounced on clayey soils, suggests that the contrast between grassy savanna and young forests might represent alternative ecosystem states, although savannas with low woody biomass remained vulnerable to forest edge encroachment.},
  keywords = {alternative ecosystem states ; {C}entral {A}frica ; forest expansion ; grass-fire feedback ; savanna community ; soil ; {CAMEROUN} ; {AFRIQUE} {CENTRALE}},
  booktitle = {},
  journal = {{P}roceedings of the {R}oyal {S}ociety {B} : {B}iological {S}ciences},
  volume = {291},
  numero = {2033},
  pages = {20241120 [12 ]},
  ISSN = {0962-8452},
  year = {2024},
  DOI = {10.1098/rspb.2024.1120},
  URL = {https://www.documentation.ird.fr/hor/fdi:010092041},
}