0000000000239461
AUTHOR
Guenola Peres
showing 12 related works from this author
THE FRENCH NATIONAL SOIL QUALITY MONITORING NETWORK (RMQS) AS A SUPPORT FOR MONITORING SOIL BIODIVERSITY: past, present and future programs
2021
Soil biodiversity would represent about 25% of the species on Earth. It is threatened, and although it is essential for human activities, it remains largely unknown. The French National Soil Quality Monitoring Network (RMQS) has a significant impact in removing the grey areas through its programs on soil microorganisms, soil meso and macrofauna, meadow flora, truffles and more recently enzymatic activities. The first distribution maps of bacterial phyla on a national scale and of soil fauna on a regional scale (in Brittany) have been developed. For the white truffle, three new areas of presence have been identified in France. The habitats of the bacteria were also described for the first ti…
How to add a biodiversity survey to an already existing national pedologic survey? Case study of the french soil quality monitoring network
2021
International audience; Despite its importance for human activities, soil biodiversity remains largely unknown. This gap of knowledge is a strong limit for studies including it such as in the agricultural field. Particularly, in France, no large-scale monitoring of soil biodiversity exist for the moment except for microorganisms (bacteria and fungi). Aware to this need, with the support of OFB, we studied the feasibility to add a soil biodiversity survey (RMQS-Biodiversity) to the already existing French soil quality monitoring network (RMQS). It is a systemic monitoring based on a 16*16 km grid where the sampling is done on a plot at the center of the mesh, which could belong to different …
Relevance of different soil fauna and microflora groups in the monitoring of soil biodiversity: RMQS-Biodiv, a french Pilote area experience
2008
affiche, résumé; Soil biota play essential roles in delivering key ecosystem goods and services, and are both directly and indirectly responsible for acting in many important functions (nutrient release, soil structure maintain, contribution to water storage). It is thus essential to characterize both the species diversity and the biological functions. In order to monitor soil biodiversity (species and function) in relation to land use (mainly agricultural practices) and pedoclimatic parameters, a French program « RMQS-biodiv » was developed at a wide regional scale (Brittany). An important national research collaboration (12 research teams) supported the program, that undertook the study o…
Mise en place d’outils et bio-indicateurs pertinents de qualité des sols
2017
EABIOME; National audience; Depuis plus de quinze ans, l’intérêt pour la composante biologique des sols est croissant, que ce soit pour des questions liées à la connaissance et la protection de cette biodiversité encore méconnue ou pour être en mesure de piloter les organismes du sol dans le cadre de pratiques agroécologiques (e.g., biocontrôle des ravageurs, nutrition des plantes). Plusieurs projets européens et nationaux ont été financés afin de développer et de valider des méthodes d’accès à cette information biologique. Cela a permis d’une part de développer de nouvelles approches d’identification moléculaire basées sur l’ADN extrait des sols et, d’autre part, de former de jeunes spécia…
Les indicateurs de l'état biologique des sols : Guide de sélection selon le type d’application et/ou la problématique
2014
National audience
Démarche statistique pour la sélection des indicateurs par Random Forests pour la surveillance de la qualité des sols
2013
The volume of data, and the large number of biological variables to be tested (one hundred), require analytical techniques, such asRandom Forests, which can overcome the problem of multi-colinearity for the selection of indicators, sensitive to various factors.Random Forests methodology is appropriate for the selection of the most discriminant variables. So, we searched for the best wayto select them, by bringing together all biological variables, representing the Microflora and Fauna. This approach focuses on impactindicators from the Bio2 program, indicators of flora and indicators of accumulation (snails) were not included.This work has been implemented on the three factors of discrimina…
Soil bioindicators: how to select them in function of the site issues?
2015
Soil bioindicators: how to select them in function of the site issues?. 13th International AquaConSoil Conference
Mise en place d’outils et de bio-indicateurs pertinents de la qualité des sols (Chapitre 9)
2017
Mise en place d’outils et de bio-indicateurs pertinents de la qualité des sols (Chapitre 9)
Application of soil bioindicators for risk assessment, monitoring and soil characterization in contaminated soils. Results from the French national “…
2013
International audience; absent
Étude de la qualité des milieux terrestres : caractérisation des impacts écotoxiques dans les sols
2018
National audience; Étude de la qualité des milieux terrestres : caractérisation des impacts écotoxiques dans les sols
Les sols et la préservation de la biodiversité
2014
Les sols et la préservation de la biodiversité. Journée Mondiale des Sols
Impact du travail du sol sur son fonctionnement biologique
2014
National audience; Les impacts des différentes modalités de travail du sol (labour, semis direct) sur l’environnement et les états du sol, sur la biodiversité ou sur le climat font l’objet de débats parfois passionnés mais souvent trop peu instruits sur les plans scientifique et technique. Que nous enseignent les expérimentations les plus récentes sur ce sujet ? Quelles sont les innovations qui se dessinent à l’heure actuelle ? Cet ouvrage propose une synthèse des connaissances les plus récentes dans ce domaine.