Centre de documentation
scientifique

Dépouillements

Considering evolutionary processes in adaptive forestry / François Lefèvre in Annals of Forest Science, vol 71 n° 7 (October 2014)  

Public [article]  inAnnals of Forest Science > vol 71 n° 7 (October 2014) . - pp 723 - 739 Titre : Considering evolutionary processes in adaptive forestry Type de document : Article/Communication Auteurs : François Lefèvre, Auteur ; Thomas Boivin, Auteur ; A. Bontemps, Auteur ; et al., Auteur Année de publication : 2014 Article en page(s) : pp 723 - 739 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation [Termes IGN] changement climatique [Termes IGN] surveillance forestière [Termes IGN] sylviculture Résumé : (Auteur) Context Managing forests under climate change requires adaptation. The adaptive capacity of forest tree populations is huge but not limitless. Integrating evolutionary considerations into adaptive forestry practice will enhance the capacity of managed forests to respond to climate-driven changes. Aims Focusing on natural regeneration systems, we propose a general framework that can be used in various and complex local situations by forest managers, in combination with their own expertise, to integrate evolutionary considerations into decision making for the emergence of an evolution-oriented forestry. Methods We develop a simple process-based analytical grid, using few processes and parameters, to analyse the impact of forestry practice on the evolution and evolvability of tree populations. Results We review qualitative and, whenever possible, quantitative expectations on the intensity of evolutionary drivers in forest trees. Then, we review the effects of actual and potential forestry practice on the evolutionary processes. We illustrate the complexity of interactions in two study cases: the evolutionary consequences for forest trees of biotic interactions and of highly heterogeneous environment. Conclusion Evolution-oriented forestry may contribute adapting forests to climate change. It requires combining short-term and long-term objectives. We propose future lines of research and experimentation. Numéro de notice : A2014-532 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-013-0272-1 Date de publication en ligne : 08/03/2013 En ligne : https://doi.org/10.1007/s13595-013-0272-1 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74145 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
016-2014071	SL	Revue	Centre de documentation	Revues en salle	Disponible

Is generalisation of uneven-aged management in mountain forests the key to improve biodiversity conservation within forest landscape mosaics? / M. Redon in Annals of Forest Science, vol 71 n° 7 (October 2014)  

Public [article]  inAnnals of Forest Science > vol 71 n° 7 (October 2014) . - pp 751 - 760 Titre : Is generalisation of uneven-aged management in mountain forests the key to improve biodiversity conservation within forest landscape mosaics? Type de document : Article/Communication Auteurs : M. Redon, Auteur ; Sandra Luque, Auteur ; Frédéric Gosselin, Auteur ; et al., Auteur Année de publication : 2014 Article en page(s) : pp 751 - 760 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation [Termes IGN] Alpes [Termes IGN] aménagement paysager [Termes IGN] climat de montagne [Termes IGN] forêt [Termes IGN] protection de la biodiversité [Termes IGN] sylviculture [Termes IGN] Vercors, massif du Résumé : (Auteur) Context Uneven-aged management systems based on selection silviculture have become popular in European mountain forests and progressively replace other silvicultural practices. In time, this trend could lead to a homogenisation of the forest mosaic with consequences on structural indices recognised as beneficial to forest biodiversity. Aims This study was conducted to investigate the potential effects of a generalisation of the selection silvicultural system on structural diversity in the forest landscape with consequences for forest biodiversity conservation. Methods We compared four structural indices (tree species richness, diameter heterogeneity, deadwood volume and basal area of mature trees) in five different stand types typical of the northern French Alps, using forest plot data in the Vercors mountain range. Through virtual landscape simulations, we then calculated predicted mean proportions of stand types under two different conservation strategies: (i) maximising mean index values at the landscape level and (ii) maximising the number of plots in the landscape with index values above given thresholds. Results Multi-staged forests did not maximise all indices, the best solution being to combine the five stand types in uneven proportions to improve biodiversity conservation. Conclusion The expansion of selection silviculture in European heterogeneous forest landscapes could enhance biodiversity conservation if other stand types with complementary structural characteristics are maintained. Numéro de notice : A2014-533 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-014-0371-7 Date de publication en ligne : 17/04/2014 En ligne : https://doi.org/10.1007/s13595-014-0371-7 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74146 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
016-2014071	SL	Revue	Centre de documentation	Revues en salle	Disponible

Impact of local slope and aspect assessed from LiDAR records on tree diameter in radiata pine (Pinus radiata D. Don) plantations / Hanieh Saremi in Annals of Forest Science, vol 71 n° 7 (October 2014)  

Public [article]  inAnnals of Forest Science > vol 71 n° 7 (October 2014) . - pp 771 - 780 Titre : Impact of local slope and aspect assessed from LiDAR records on tree diameter in radiata pine (Pinus radiata D. Don) plantations Type de document : Article/Communication Auteurs : Hanieh Saremi, Auteur ; L. Kumar, Auteur ; Russell Turner, Auteur ; et al., Auteur Année de publication : 2014 Article en page(s) : pp 771 - 780 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] biomasse [Termes IGN] pente [Termes IGN] Pinus (genre) [Termes IGN] topographie locale Résumé : (Auteur) Context Reliable information on tree stem diameter variation at local spatial scales and on the factors controlling it could potentially lead to improved biomass estimation over pine plantations. Aims This study addressed the relationship between local topography and tree diameter at breast height (DBH) within two even-aged radiata pine plantation sites in New South Wales, Australia. Methods A total of 85 plots were established, and 1,302 trees were sampled from the two sites. Airborne light detection and ranging (LiDAR) was used to derive slope and aspect and to link them to each individual tree. Results The results showed a significant relationship between DBH and local topography factors. At both sites, trees on slopes below 20° and on southerly aspects displayed significantly larger DBHs than trees on steeper slopes and northerly aspects. Older trees with similar heights also exhibited a significant relationship between DBH and aspect factor, where greater DBHs were found on southerly aspects. Conclusions The observed correlation between tree DBH and LiDAR-derived slope and aspect could contribute to the development of improved biomass estimation approaches in pine plantations. These topographical variables are easily attained with airborne LiDAR, and they could potentially improve DBH predictions in resource inventories (e.g. stand volume or biomass) and support field sampling design. Numéro de notice : A2014-534 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-014-0374-4 Date de publication en ligne : 16/04/2014 En ligne : https://doi.org/10.1007/s13595-014-0374-4 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74147 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
016-2014071	SL	Revue	Centre de documentation	Revues en salle	Disponible

Effects of forest management on the amount of deadwood in Mediterranean oak ecosystems / Alessandro Paletto in Annals of Forest Science, vol 71 n° 7 (October 2014)  

Public [article]  inAnnals of Forest Science > vol 71 n° 7 (October 2014) . - pp 791 - 800 Titre : Effects of forest management on the amount of deadwood in Mediterranean oak ecosystems Type de document : Article/Communication Auteurs : Alessandro Paletto, Auteur ; Isabella De Meo, Auteur ; Paolo Cantiani, Auteur ; et al., Auteur Année de publication : 2014 Article en page(s) : pp 791 - 800 Note générale : Bibliographie Langues : Anglais (eng) Résumé : (Auteur) Context Deadwood is an important habitat for vertebrate and invertebrate species, a key factor in the nutrient cycle and a valuable carbon pool. Difference in the deadwood C stock depends on many variables such as forest type, microclimate and forest management. Aims We investigated the relationship between C stock in deadwood and forest management in oak stands of southern Italy. Methods Deadwood C stock was quantified in 74 forest stands under intensive, extensive or multifunctional management. The relationship between management and C stock in deadwood was assessed taking into account the decay class and the type of deadwood (snags, stumps and logs). Results Intensively managed forests are characterized by significantly lower mean levels of deadwood C than the other forms of management. Multifunctional management resulted in the highest level of C, mainly in logs and snags, while extensive management resulted in high levels of C storage concentrated in snags. Conclusion Results of the research highlight that forest management practices greatly influence the quantitative and qualitative presence of deadwood in forests. Numéro de notice : A2014-535 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-014-0377-1 Date de publication en ligne : 15/05/2014 En ligne : https://doi.org/10.1007/s13595-014-0377-1 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74148 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
016-2014071	SL	Revue	Centre de documentation	Revues en salle	Disponible

Disturbances in European beech water relation during an extreme drought / Marianne Peiffer in Annals of Forest Science, vol 71 n° 7 (October 2014)  

Public [article]  inAnnals of Forest Science > vol 71 n° 7 (October 2014) . - pp 821 - 829 Titre : Disturbances in European beech water relation during an extreme drought Type de document : Article/Communication Auteurs : Marianne Peiffer, Auteur ; Nathalie Bréda, Auteur ; Vincent Badeau, Auteur ; et al., Auteur Année de publication : 2014 Article en page(s) : pp 821 - 829 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de télédétection [Termes IGN] comportement [Termes IGN] evaporation [Termes IGN] Fagus (genre) [Termes IGN] forêt [Termes IGN] humidité du sol [Termes IGN] indice foliaire [Termes IGN] Lorraine [Termes IGN] sécheresse Résumé : (Auteur) Context In the context of a probable increase in intensity and frequency of extreme summer drought events, a better understanding of the key processes involved in water relations is needed to improve the theoretical foundations of predictive process-based models. Aims This paper aims to analyse how temperate deciduous trees cope with water shortage. Methods The exceptional summer drought of 2003 in Europe provided an opportunity to monitor stomatal conductance and twig water potential in European beech (Fagus sylvatica L.) at predawn and midday and to analyse variations with respect to leaf height within the canopy. By comparing our field measurements of twig water potential to values found in the literature, we confirmed the strong impact of soil water shortage on crown water relations. Results This paper shows that (1) the vertical gradient of stomatal conductance within the crown disappeared under extreme soil water depletion; (2) at maximum drought intensity, predawn twig water potential (ψ pd) reached −2.3 MPa at a height of 14 m in the crown and −2.0 MPa at a height of 10 m. The significant differences in ψ pd between the two measurement heights in the canopy may be due to night transpiration; (3) there was a close relationship between predawn twig water potential and relative extractable soil water; (4) as drought conditions intensified, there was a close relationship between canopy radiation interception and predawn water potential, as estimated daily from relative extractable soil water. Numéro de notice : A2014-536 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1007/s13595-014-0383-3 Date de publication en ligne : 23/05/2014 En ligne : https://doi.org/10.1007/s13595-014-0383-3 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=74149 [article]

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
016-2014071	SL	Revue	Centre de documentation	Revues en salle	Disponible