La gestion forestière durable en Région wallonne : L'apport de l'inventaire permanent - Partie 2 : Intégration des indicateurs à l'inventaire

in Silva Belgica (1999), 106(2), 7-14

Dans une étude récente KOESTEL et al. [1999], après avoir rappelé les différents critères et indicateurs de gestion forestière durable adoptés à l'échelle internationale, montrent comment, au niveau ... [more ▼]

Dans une étude récente KOESTEL et al. [1999], après avoir rappelé les différents critères et indicateurs de gestion forestière durable adoptés à l'échelle internationale, montrent comment, au niveau régional, un inventaire forestier permanent peut, outre les variables et paramètres qu'il traite habituellement, prendre en charge ces indicateurs. Moyennant quelques ajustements méthodologiques, il s'est avéré dans le cas de la Région wallonne, que l'Inventaire des Ressources ligneuses pouvait, grâce aux techniques d'échantillonnage qu'il met en oeuvre, constituer un outil pertinent pour dresser un état des lieux du développement durable en milieu forestier. En outre, du fait de son caractère permanent, il permet d'assurer le suivi de l'évolution des critères et indicateurs au cours du temps. Nous rappellerons très brièvement les bases méthodologiques de l'inventaire forestier régional (paragraphe 2) et les résultats de l'étude qui était destinée à lui faire prendre en compte des indicateurs de gestion durable (paragraphe 3). Nous nous attacherons à montrer comment ces indicateurs sont concrètement, selon les cas, observés, mesurés, calculés et traités (paragraphe 4), puis nous tirerons les quelques conclusions qui paraissent s'imposer (paragraphe 5). [less ▲]

La gestion forestière durable en Région wallonne, l'apport de l'inventaire permanent.

Book (2002)

The objective of this paper is to examine the feasability of using the walloonian permanent forest inventory to monitor maintenance of the sustainability forest management over time. Criteria and in ... [more ▼]

The objective of this paper is to examine the feasability of using the walloonian permanent forest inventory to monitor maintenance of the sustainability forest management over time. Criteria and in-dicators which were designed to be used in assessing such a sustainability, as acted in the interna-tional conference of Helsinki, have been analysed to serve at a regional level. The variables selected to define or to be considered as components of indicators have been divided by various types according to 4 classes : “initial” variables (already available in the existing inventory), “calculated” variables (is-sued from data processing or data transformation), “new variables” (addressing parameters less linked to traditional forest inventories), “non relevant” variables (the level and the nature of which cannot be considered in the used sampling method). Slight modifications affecting the design of the inventory and some new observations seem to be sufficient to meet the requirements of a comprehensive monitoring of a sustainable forestry. [less ▲]

La gestion forestière durable, de la recherche à l'application pratique : le réseau des forêts modèles

in Silva Belgica (2004), 59(3), 28-31

Gestion globale du traitement de l'hypertension artérielle

Conference (2004, November 12)

Gestion informatique de références bibliographiques personnelles : un outil pour le statisticien

in Biométrie-Praximétrie (1984), 24

La gestion informatisée des compétences (GIC), un support du développement professionnel en enseignement supérieur.

in Vers un changement de culture en enseignement supérieur. Regards sur l'innovation, la collaboration etla valorisation. (2007)

Gestion intégrée des ravageurs de céréales et de légumineuses stockées au Sénégal par l’utilisation de substances issues de plantes

Doctoral thesis (2013)

This thesis used an integrated approach to develop options for the control of cereal and legumes insect pests in Senegal combining laboratory and field tests. A diagnostic survey was conducted to fully ... [more ▼]

This thesis used an integrated approach to develop options for the control of cereal and legumes insect pests in Senegal combining laboratory and field tests. A diagnostic survey was conducted to fully understand current storage practices and control methods in foods and seeds. The study focused on traditional practices from the eastern parts of Senegal to develop options in harmony with the populations concerns. Boscia senegalensis is a plant known for its medicinal properties and its food use was the first plant to be tested for the control of Caryedon serratus, the groundnut weevil. We observed that fruits (3% w/w) and crushed leaves (6% w/w) of this species protected groundnuts. B. senegalensis was subsequently used for protection of cowpea, millet and maize against Callosobruchus maculatus, Tribolium castaneum, Sitophilus zeamais and Prostephanus truncatus. Only T. castaneum was insensitive to this plant at low concentrations. Methylisothiocyanate (MITC) is the main active ingredient of this plant liberated from glucocapparin. This molecule can reach C. maculatus and C. serratus larvae and eggs which develop inside grains but concentrations need to be two to four times higher than adults. Ripe fruits still proved to be effective but immature fruits had a higher efficacy. Residues of MITC were detected in the stored grains after treatment, but the treatment had no effect on germination of stored grains. During the study a reliable and effective method to analyze glucocapparin in leaves and fruits of B. senegalensis was developed, during two years in four localities showing an apparently very marked “soil effect”. Highest glucocapparin concentrations were recorded in January at the beginning of dry season and the lowest during the rainy season from August to November, independent of locality. Powdered maize cobs were effective in maintaining maize grain quality in laboratory studies. Observed damage and losses were respectively 5 and 1% at 2.4% (w/w). At higher doses, mixing of powdered maize cobs with grains offered equal protection as Actellic (pyrimiphos-methyl). The efficacy of this control method was tested during two years in farmer’s granaries confirmed the validity of the laboratory tests. The traditional practice of incorporating insecticidal plants within the storage structure did not impact development of pests already established in the granaries. By contrast, storage of maize cobs using a sandwich method with Hyptis spicigera proved to be effective against storage pests. In addition, the storage of non-winnowed maize grains offered a substantial degree of protection against insect infestations. Their composition was carried out by GC-MS/GC-FID analyses. [less ▲]

Gestion intégrée des zones côtières: la problématique de la sauvegarde des dunes bordières littorales face aux actions anthropiques et à la désertification

in AA.VV. (Ed.) Cooperazione nel Mediterraneo e Liguria (1996)

Gestion journalière et recours en annulation

in Revue Pratique des Sociétés Civiles et Commerciales (2010)

La gestion par la dérogation : une politique d'apprentissage industriel en Belgique francophone

in Formation Emploi : Revue Française de Sciences Sociales (2004), 86