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See detailLes forêts à Marantaceae au sein de la mosaïque forestière du Nord de la République du Congo : origines et modalités de gestion
Gillet, Jean-François ULg

Doctoral thesis (2013)

The Marantaceae forests are conspicuous by an unusual physiognomy with a giant herbaceous continuous stratum in association with a scattered tree component regenerating with difficulty. This vegetation ... [more ▼]

The Marantaceae forests are conspicuous by an unusual physiognomy with a giant herbaceous continuous stratum in association with a scattered tree component regenerating with difficulty. This vegetation, arranged as a heterogeneous patchwork within the lowland semi-deciduous forests, is widely extended in the Northern Republic of Congo. The thesis aims to define and describe the vegetation types of this forest patchwork in order to identify the key factors that have shaped it and to recommend an appropriate forestry. To achieve this, the study was conducted in the CIB-OLAM logging concession (Sangha and Likwala departments). Two types of monodominant G. dewevrei forests and three hydromorphic vegetation types have been described trough on ordination multivariate analysis of the woody stand in relation with the hydrological conditions. In addition, a multi-strata classification of mixed terra firma forests has individualized five vegetation types that are defined and characterized. These are: (1.1) open vegetation types with Marantaceae and Aframomum cf. subsericeum, (1.2) sparse Marantaceae forests with Megaphrynium macrostachyum and (1.3) with Haumania liebrechtsiana, (1.4) dense forests with Marantaceae and (2) moist semi-deciduous dense forests (3 forms: (2.1) with Sarcophrynium schweinfurthianum, (2.2) with Haumania danckelmaniana and (2.3) with Triplochiton scleroxylon). They are characterized by their specific richness, floristic composition and/or structural parameters. Thanks to an archaeo-pedological study coupled with 14C dating, we established that the Marantaceae forests suffered the strongest past disturbances. The perturbations were mostly caused by humans and predominated around 1,550 yrs BP. They would be related to an expansion phase of the oil palm Elaeis guineensis and its exploitation by humans. The simultaneous degradation of the forest cover, combined with poor and wet soils, has facilitated the expanding of giant herbs, gradually inhibiting the tree regeneration. The dense forests on the contrary, whose the dominant species are light-demanding and wind-dispersed trees (eg. T. scleroxylon) would have a more recent origin. Indeed, they date back about 7 to 2 centuries and are related to shifting cultivation on richer and well-drained soils. The logging within the open canopy Marantaceae vegetation types results in a recovery of the forest dynamic on skid trails. Thanks to the destruction of the herbaceous understorey by logging equipment. On these trails, an assisted regeneration by selection and freeing of seedlings and an additional planting turns out to be an effective technique for woody species regeneration. The results are especially encouraging for the following species: Canarium schweinfurthii, Terminalia superba, Ricinodendron heudelotii and Nauclea diderrichii whose average height growth is respectively 154, 130, 125 and 124 cm, one year after the silvicultural treatment. Given the evolutionary dynamics of these open canopy Marantaceae vegetation types, systematic reforestation with timber species on skid trails seems to be the most appropriate silvicultural technique to ensure sustainable exploitation. [less ▲]

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See detailLes forêts anciennes en Wallonie. 1ère partie : Concepts généraux
Jacquemin, Floriane ULg; Kervyn, Thierry; Branquart, Etienne et al

in Forêt Wallonne (2014), (131), 34-49

Au cours des siècles, la forêt wallonne a subi de profondes mutations qui marquent encore la structure et le fonctionnement des écosystèmes forestiers actuels. Néanmoins, certaines forêts ont été ... [more ▼]

Au cours des siècles, la forêt wallonne a subi de profondes mutations qui marquent encore la structure et le fonctionnement des écosystèmes forestiers actuels. Néanmoins, certaines forêts ont été relativement épargnées. Ces forêts, qualifiées de « forêts anciennes » en raison de la continuité temporelle de leur état forestier, s’avèrent d’un grand intérêt en matière de biodiversité, de naturalité de fonctionnement et de capacité d’adaptation aux changements globaux. Leur reconnaissance et leur identification sont utiles pour assurer une gestion responsable des territoires. [less ▲]

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See detailLes forêts anciennes en Wallonie. 2ème partie : Cartographie
Kervyn, Thierry; Jacquemin, Floriane ULg; Branquart, Etienne et al

in Forêt Wallonne (2014), (133), 38-52

Un premier article a démontré que l’identification des forêts anciennes est une étape préalable pour pouvoir leur appliquer un mode de gestion spécifique et protéger le patrimoine qu’elles représentent ... [more ▼]

Un premier article a démontré que l’identification des forêts anciennes est une étape préalable pour pouvoir leur appliquer un mode de gestion spécifique et protéger le patrimoine qu’elles représentent. Cette deuxième partie énumère les sources historiques disponibles en Wallonie, donne un aperçu de l’état d’avancement du travail de numérisation de ces documents mené par le Service Public de Wallonie et en tire quelques informations très surprenantes sur l’évolution spatiale et temporelle des massifs forestiers de Wallonie depuis deux siècles et demi. [less ▲]

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See detailLes forêts belges
André, Pierre; de Jamblinne de Meux, Alain; Devillez, Freddy et al

Book published by Société Royale Forestière de Belgique (1994)

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See detailLes forêts claires de Nkayamba et de Nyamirambo de la Réserve Naturelle de Rumonge (Burundi): phytogéographie et types biologiques.
Habonimana, B; Bogaert, Jan ULg; Nzigidahera, B et al

in Bulletin Scientifique de l'Institut National pour l'Environnement et la Conservation de la Nature (INECN) (2010), 8

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See detailLes forêts communautaires : un outil d'aménagement ?
Vermeulen, Cédric ULg; Dethier, M.

in Delvingt, W. (Ed.) La forêt des hommes : terroirs villageois en forêt tropicale africaine (2001)

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See detailForêts communautaires camerounaises et Plan d’action « Forest Law Enforcement, Governance and Trade » (FLEGT) : quel prix pour la légalité ?
Julve, Cécilia; Eckebil, Tabi Pamela; Nzoyem Saha, Nadège et al

in Bois et Forêts des Tropiques (2013), 317(3), 71-80

Illegal logging is a threat to the world’s tropical forests. To act against overexploitation of timber, the European Union has set up the Forest Law Enforcement, Governance and Trade action plan (FLEGT ... [more ▼]

Illegal logging is a threat to the world’s tropical forests. To act against overexploitation of timber, the European Union has set up the Forest Law Enforcement, Governance and Trade action plan (FLEGT), which opened the Voluntary Partnership Agreement (VPA) negotiating agenda with Cameroon. In 2010, the two parties signed the VPA, committing Cameroon to ensure the legality of timber from all logging concessions sold on external and domestic markets. Community forests (CF) were included in the agreement and must therefore ensure the legality of their timber production. To do that, a specific legality grid has been developed. This was tested in half of active community forests in Cameroon to analyse any gaps between activities as practiced in the field and the legality criteria set out in the legality grid. The result show that no CF fully complied with this grid. The study identified obstacles due to complex procedures and to the excessive costs of compliance. Some criteria not currently met could be complied with through community capacity-building and by amending certain regulations. Under these conditions, community forests could become a source of legal supplies at least for the domestic timber market. [less ▲]

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See detailLes forêts communautaires du Gabon : processus d'attribution et activités communautaires
Meunier, Quentin; Moumbogou; Vermeulen, Cédric ULg

Learning material (2011)

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See detailLes forêts communautaires, c'est aussi une histoire de femmes
Meunier, Quentin; Boldrini, Sylvie ULg; Morin, Amélie et al

Learning material (2013)

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See detailForêts des communautés locales et gestion du bois-énergie
Vermeulen, Cédric ULg; Lescuyer, Guillaume

in Louppe, Dominique; Larzilière, Adélaïde (Eds.) Quand la ville mange la forêt : les défis du bois-énergie en Afrique centrale (2013)

Ce court article discute des potentialités de la loi sur les forêts des communautés locales pour la gestion du bois-énergie dans ce pays.

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See detailLes forêts vierges du Bassin du Congo - mythe ou réalité ?
Morin-Rivat, Julie ULg; Bourland, Nils ULg; Gillet, Jean-François ULg et al

Scientific conference (2013, March 21)

Les forêts du bassin du Congo ont longtemps été considérées comme des massifs historiquement épargnés par l'action de l'homme. Des résultats plus ou moins récents de recherches scientifiques remettent en ... [more ▼]

Les forêts du bassin du Congo ont longtemps été considérées comme des massifs historiquement épargnés par l'action de l'homme. Des résultats plus ou moins récents de recherches scientifiques remettent en question cette vision des forêt denses humides africaines. [less ▲]

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See detailForeword
Deroo, Emeline ULg; Leclercq, Bruno ULg

in Logique et Analyse (2011), 54(214), 125-126

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See detailForeword
Fontana, Roberta; Canepari, Pietro; Ghuysen, Jean-Marie ULg

in Microbial Drug Resistance : Mechanism, Epidemiology, & Disease (1996), 2(1), 5-5

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See detailForeword
Delrez, Marc ULg

in Guignery, Vanessa (Ed.) Chasing Butterflies: Janet Frame's The Lagoon and Other Stories (2011)

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See detailForeword
Bauden, Frédéric ULg

in al-Maqrīzī, Ḍawʾ al-sārī li-maʿrifat ḫabar Tamīm al-Dārī (On Tamīm al-Dārī and His Waqf in Hebron) (2014)

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See detailForeword
Defourny, Jacques ULg

in Kerlin, Janelle A. (Ed.) Social Enterprise. A Global Comparison (2009)

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See detailForeword - Transport protocols for next generation networks
Pham, Congduc; Leduc, Guy ULg

in Annales des Télécommunications = Annals of Telecommunications (2006), 61(1-2, JAN-FEB), 2-4

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See detailLa Forfaitarisation des Spécialités Pharmaceutiques en milieu hospitalier
Van Hees, Thierry ULg

Conference (2010, February 13)

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See detailForfaits pharmaceutiques et Gestion de l'Antibiothérapie Hospitalière
Van Hees, Thierry ULg

Conference (2011, May 19)

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See detailForgerons à travers les générations ? La métallurgie dans l’îlot VI d’Olbia de Provence (Hyères, 83) de 325 avant notre ère à 20 de notre ère
Pagès, Gaspard ULg; Roure, Réjane; Salle, Valérie

in Esposito, A.; Sanidas, G. (Eds.) "Quartiers" artisanaux en Grèce ancienne. Une perspective méditerranéenne. Archéologie des espaces économiques. Actes du Symposium international d’HALMA-IPEL sur La concentration spatiale des activités et la question des quartiers spécialisés (Lille 2009) (2012)

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