@article{fdi:010071206,
  title = {{I}mpact of plant root functional traits and associated mycorrhizas on the aggregate stability of a tropical {F}erralsol},
  author = {{D}emenois, {J}. and {C}arriconde, {F}. and {B}onaventure, {P}. and {M}aeght, {J}ean-{L}uc and {S}tokes, {A}. and {R}ey, {F}.},
  editor = {},
  language = {{ENG}},
  abstract = {{I}n many tropical regions, such as {N}ew {C}aledonia, soil erosion from anthropogenic activities and subsequent ecological restoration are major issues that require detailed soil and vegetation data for the production of management plans. {T}o determine if some plant species are more useful for stabilizing soil aggregates and thus reducing erodibility, we examined three species endemic to {N}ew {C}aledonia, and measured how root traits and associated mycorrhizas and fungi influenced {F}erralsol aggregate stability ({MWD}). {T}he three species are hosts to different types of mycorrhizas and were: (i) the sedge {C}ostularia arundinacea ({S}ol. {E}x {V}ahl) {K}ük., an {AMF} (arbuscular mycorrhizal fungi) host, (ii) the shrub {T}ristaniopsis glauca {B}rongn. & {G}ris and (iii) the tree {A}rillastrum gummiferum ({P}ancher ex {B}rongn. & {G}ris) {B}aill., both of the latter are ectomycorrhizal fungi ({ECM}) hosts. {F}ungal abundance, aggregate stability, soil organic carbon ({SOC}), iron ({F}e) and aluminium ({A}l) sesquioxides were measured in the soil beneath 20 individuals for each species, as well as in 20 control samples of bare soil. {R}oot functional traits including root mass density ({RMD}), root length density ({RLD}) and percentage of fine roots were measured on all individuals. {R}esults showed that plant species can significantly influence soil aggregate stability. {MWD} was greater in soil beneath {C}ostularia characterized by high {RMD}, {RLD}, percentage of fine roots and fungal abundance, while {MWD} in the rhizosphere of {T}ristaniopsis and {A}rillastrum was similar to that of bare soil. {F}e and {A}l were very high in all soil samples and are suspected of masking the influence of roots, fungi and {SOC} on {MWD} at the scale of isolated {ECM}-hosts. {T}herefore, {MWD} alone would not be a relevant predictor of restoration on such soil and further investigations should be carried out to identify a set of predictors useful for indicating the restoration of degraded soils on ultramafic substrates.},
  keywords = {{NOUVELLE} {CALEDONIE}},
  booktitle = {},
  journal = {{G}eoderma},
  volume = {312},
  numero = {},
  pages = {6--16},
  ISSN = {0016-7061},
  year = {2018},
  DOI = {10.1016/j.geoderma.2017.09.033},
  URL = {https://www.documentation.ird.fr/hor/fdi:010071206},
}