La pessière wallonne: son évolution entre 1980 et 1990.

in Silva Belgica (1992), 99(4), 7-14

Au début des années 1980, un inventaire des forêts wallonnes a été réalisé en vue de dresser rapidement, par échantillonnage systématique, un état aussi objectif que possible des ressources ligneuses ... [more ▼]

Au début des années 1980, un inventaire des forêts wallonnes a été réalisé en vue de dresser rapidement, par échantillonnage systématique, un état aussi objectif que possible des ressources ligneuses régionales, principalement en termes de surfaces et de volumes sur pied. En 1990, en vue d’actualiser les données, un nouvel inventaire a été effectué sur un sous-échantillon du précédent. La présente étude fournit, dans une large mesure, une mise à jour des données relatives aux peuplements d’épicéa commun (Picea abies (L.) KARST) et publiées dans un document intitulé « La pessière wallonne en chiffres » (RONDEUX et al., 1984b). Elle devrait aussi permettre de construire un modèle mathématique de prévision de la production d’épicéa pour les années à venir. Dans les lignes qui suivent, après avoir justifié le bien-fondé de pareille étude (paragraphe 2), nous décrirons la méthode d’analyse que nous avons utilisée (paragraphe 3). Nous présenterons ensuite les principaux résultats obtenus (paragraphe 4). Nous terminerons par quelques considérations relatives à la situation actuelle des pessières concernées ainsi qu’aux principales raisons qui la sous-tendent (paragraphe 5). [less ▲]

La peste porcine africaine

Book published by I.E.M.V.T. (1985)

PESTEAUX : A project for building GIS-based tool for the assessment of water pollution risks at local scale due to pesticides

Poster (2008, November)

PESTEAUX : Mise au point d’un système d’évaluation du risque de pollution diffuse des eaux de surface et souterraines par l’usage des pesticides, à l’échelle de la parcelle agricole

Conference (2009, October 06)

PESTEAUX: A project for building GIS-based tool for the assessment of water pollution risks at local scale due to pesticides.

in Huyghebaert, Bruno; Lorencowicz, Edmund; Uziak, Jacek (Eds.) Farm machinery and process management in sustainable agriculture, III International Scientific Symposium, Gembloux, Belgium, 12-13 November 2008, Tome 2 (2008, November)

Diffuse pollution of water resources due to pesticides uses is a major environmental issue in the European Union, regulated by specific legislations: the Water Framework Directive (Directive 2000/60/EC ... [more ▼]

Diffuse pollution of water resources due to pesticides uses is a major environmental issue in the European Union, regulated by specific legislations: the Water Framework Directive (Directive 2000/60/EC) and the Thematic Strategy on the Sustainable Use of Pesticides. Solving this environmental problem requires methods and tools for spatial risk analysis, notably at a local scale (agricultural parcel level). This paper presents the first developments of a decision support system aiming to assess surface and ground waters pollution risks due to pesticides uses, based on a Geographic Information System (GIS). Different factors affecting pesticide environmental propagation are taken into account, as for example land use, pesticides properties and application modalities, environment characteristics (soil properties, topography, climate, …) as well as surface and ground waters characteristics. A pesticide emission model is used to assess pesticide leaching or runoff to water resources. The reference scale for risks assessment is the agricultural parcel. The quality of the results obtained will be assessed by comparison with existing water monitoring data and related studies. [less ▲]

Pesticide exposure of pregnant women in Guadeloupe: Ability of a food frequency questionnaire to estimate blood concentration of chlordecone

in Environmental Research (2010), 110(2), 146-151

Context Chlordecone, an environmentally persistent organochlorine insecticide used intensively in banana culture in the French West Indies until 1993, has permanently polluted soils and contaminated ... [more ▼]

Context Chlordecone, an environmentally persistent organochlorine insecticide used intensively in banana culture in the French West Indies until 1993, has permanently polluted soils and contaminated foodstuffs. Consumption of contaminated food is the main source of exposure nowadays. We sought to identify main contributors to blood chlordecone concentration (BCC) and to validate an exposure indicator based on food intakes.Material and methods We used a food frequency questionnaire (FFQ) completed by a sample of 194 pregnant women to estimate their dietary exposure to chlordecone and compared it to blood levels. In a first approach, chlordecone daily intake was estimated as the product of daily eaten quantity of 214 foodstuffs, multiplied by their chlordecone content, and summed over all items. We then predicted individual blood chlordecone concentration with empirical weight regression models based on frequency of food consumption, and without contamination data.Results Among the 191 subjects who had BCC determination, 146 (76%) had detectable values and mean BCC was 0.86†ng/mL (range < LOD-13.2). Mean per capita dietary intake of chlordecone was estimated at 3.3†[mu]g/day (range: 0.1-22.2). Blood chlordecone levels were significantly correlated with food exposure predicted from the empirical weight models (r=0.47, p<0.0001) and, to a lesser extent, with chlordecone intake estimated from food consumption and food contamination data (r=0.20, p=0.007). Main contributors to chlordecone exposure included seafood, root vegetables, and Cucurbitaceous.Conclusion These results show that the Timoun FFQ provides valid estimates of chlordecone exposure. Estimates from empirical weight models correlated better with blood levels of chlordecone than did estimates from the dietary intake assessment. [less ▲]

Pesticide residues in ACP countries: Hwo the process of harmonizing regulations on pesticide residues in EU ca affect crop protocols in ACP countries

in Abstracts 58th International Symposium on Crop Protection (2006, May)

Les pesticides organochlorés: leur rôle de "disrupteurs hormonaux"

Conference (2001)

Pesticides selectivity list to beneficial arthropods in four field vegetable crops.

in Abstracts 59th International Symposium on Crop Protection (2007, May 22)

Pestiviroses des petits ruminants. La maladie des frontières chez les ovins

in Point Vétérinaire (2002), 33