@article{fdi:010060850,
  title = {{S}patial variability of soil microbial functioning in a tropical rainforest of {F}rench {G}uiana using nested sampling},
  author = {{F}romin, {N}. and {S}aby, {N}. {P}. {A}. and {L}ensi, {R}. and {B}runet, {D}idier and {P}orte, {B}. and {D}omenach, {A}. {M}. and {R}oggy, {J}. {C}.},
  editor = {},
  language = {{ENG}},
  abstract = {{U}nderstanding the pattern in spatial distribution of soil microbial processes is critical to understand the environmental factors that regulate them as well as to scale up these processes to ecosystem. {S}oil samples from a {I} ha tropical rainforest plot ({P}aracou, {F}rench {G}uiana) were analyzed according a nested sampling approach using different separation distances ranging from 0.4 to 40 m. {T}he variability of substrate induced respiration ({SIR}) and of denitrification enzyme activity ({DEA}) was characterized in relation to various soil properties (total {C} and {N} contents, {NIRS} related index of soil organic matter quality, {SOMQ} and index of tree influence potential, {IP}). {T}he variability of {SIR} and {DEA} was higher than that of environmental properties. {T}he patterns of accumulated variance as a function of distance varied among the soil properties. {T}he variability of {SIR} and {DEA} mainly occurred at small (1 m) scale (and at the 10-40 m-scales for {SIR}), probably reflecting the quality of litter input that results of the influence of local assemblage of different tree species, though changes in the soil {N} and {C} contents. {I}ndeed, total soil {C} and {N} contents explained the microbial properties at every scale. {C}oefficients of codispersion showed that neither {SOMQ} nor {IP} did correlate with {SIR} and {DEA}, and confirmed that total {C} and {N} contents explained microbial properties in a scale dependent and complex manner. {S}uch spatial dependency underlines the importance of soil heterogeneity in this tropical forest with implications for sampling strategies when studying the microbial processes and their response to disturbances.},
  keywords = {{S}oil microbial processes ; {R}espiration ; {D}enitrification ; {S}oil organic matter ; {T}ree influence potential ; {S}cale dependent process ; {GUYANE} {FRANCAISE}},
  booktitle = {},
  journal = {{G}eoderma},
  volume = {197},
  numero = {},
  pages = {98--107},
  ISSN = {0016-7061},
  year = {2013},
  DOI = {10.1016/j.geoderma.2012.12.009},
  URL = {https://www.documentation.ird.fr/hor/fdi:010060850},
}