0000000000525868

AUTHOR

Richard Joffre

0000-0001-8205-7710

showing 4 related works from this author

Biogeography of soil microbial communities: a review and a description of the ongoing french national initiative

2010

International audience; Microbial biogeography is the study of the distribution of microbial diversity on large scales of space and time. This science aims at understanding biodiversity regulation and its link with ecosystem biological functioning, goods and services such as maintenance of productivity, of soil and atmospheric quality, and of soil health. Although the initial concept dates from the early 20th century (Beijerinck (1913) De infusies en de ontdekking der backterien, in: Jaarboek van de Knoniklijke Akademie van Wetenschappen, Muller, Amsterdam), only recently have an increasing number of studies have investigated the biogeographical patterns of soil microbial diversity. A such …

[SDV.SA]Life Sciences [q-bio]/Agricultural sciencesEnvironmental EngineeringsolSoil biodiversityBiodiversitymicrobial communitiesBiologymicrobial ecologydiversity[ SDV.EE ] Life Sciences [q-bio]/Ecology environmentSoil survey03 medical and health sciencesPedology[ SDV.SA ] Life Sciences [q-bio]/Agricultural sciences030304 developmental biologydiversité2. Zero hungerSoil health[SDV.EE]Life Sciences [q-bio]/Ecology environment0303 health sciencesécologie microbienneLand use030306 microbiologybusiness.industryEcologyEnvironmental resource management15. Life on landSoil typebacterial communitiesSoil qualitySOIL BIOGEOGRAPHY;MICROBIAL COMMUNITIES;SOIL SURVEY;MICROBIAL ECOLOGY;DIVERSITYAgricultural sciencesEuropesoil biogeography13. Climate actionsoil surveybusinessAgronomy and Crop ScienceenvironmentSciences agricoles
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Spatial patterns of microbial communities at a soil micro-scale

2012

International audience

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[SDV]Life Sciences [q-bio]microbial communitie[SDE]Environmental Sciencesspatial pattern[SDV.BV]Life Sciences [q-bio]/Vegetal Biology[SDV.BV] Life Sciences [q-bio]/Vegetal Biologysoil micro-scaleComputingMilieux_MISCELLANEOUS
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Optimization criteria in sample selection step of local regression for quantitative analysis of large soil NIRS database

2012

International audience; Large soil spectral libraries compiling thousands of NIR (Near Infrared) reflectance spectra have been created encompassing a wide diversity and heterogeneity of spectra. Among the many chemometric approaches to the calibration of chemical and physical properties from these large libraries, local calibrations have the advantage of being able to select the most similar spectra to the spectrum of a target sample. This is particularly relevant when dealing with highly heterogeneous media such as soils, where the mineral matrix has a strong influence on spectral features. A crucial step in the implementation of local calibration procedures is the construction of local ne…

Soil testCorrelation coefficientnear infrared spectroscopy[SDV]Life Sciences [q-bio]Fast Fourier transformfast fourier transformsample selection010501 environmental sciences01 natural sciencesAnalytical ChemistryStatisticsPartial least squares regressionsoil spectral databaseSpectroscopySelection (genetic algorithm)0105 earth and related environmental sciencesMathematicscompression methodsMahalanobis distancelocal calibrationbusiness.industryProcess Chemistry and TechnologyLocal regressionPattern recognition04 agricultural and veterinary sciences15. Life on landComputer Science Applications[SDE]Environmental SciencesPrincipal component analysis040103 agronomy & agriculture0401 agriculture forestry and fisheriesArtificial intelligencebusinessSoftwareChemometrics and Intelligent Laboratory Systems
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Exploring the links between Vis NIR spectra and bacterial communities structure of soils by PLS2 regression models

2009

International audience

[SDV] Life Sciences [q-bio][SDE] Environmental Sciences[SDV]Life Sciences [q-bio][SDE]Environmental SciencesPEDOLOGIEComputingMilieux_MISCELLANEOUS
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