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The influence of spatial scales on Red List composition: Forest species in Fennoscandia / Lise Tingstad in Global ecology and conservation, vol 11 (July 2017)  

Public [article]  inGlobal ecology and conservation > vol 11 (July 2017) . - pp 247 - 297 Titre : The influence of spatial scales on Red List composition: Forest species in Fennoscandia Type de document : Article/Communication Auteurs : Lise Tingstad, Auteur ; I. Gjerde, Auteur ; A. Dahlberg, Auteur ; J.A. Grytnes, Auteur Année de publication : 2017 Article en page(s) : pp 247 - 297 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Végétation [Termes IGN] aire de répartition [Termes IGN] Fennoscandie [Termes IGN] Finlande [Termes IGN] forêt [Termes IGN] Norvège [Termes IGN] politique de conservation (biodiversité) [Termes IGN] Suède [Termes IGN] variation d'échelle Résumé : (auteur) National Red Lists are widely used prioritizing tools for nature conservation. However, status and trends of species vary with scale, and accounting for a larger spatial scale may provide complementary perspectives for nature conservation. We investigate effects of up-scaling and influence of wider-scale distribution patterns for composition of Red Lists. We collated nationally red-listed forest species in Norway, Sweden and Finland, and extracted “Candidates for a Fennoscandian Red List” (CFRL), defined as species red-listed where they appear in the region. For each country, we compared composition of organism groups and forest type associations of species that were national CFRL to the nationally red-listed species not CFRL. European distribution patterns were compared to investigate how broader-scale distribution is reflected in national Red Lists. Among the 4830 nationally red-listed forest species in Fennoscandia, 58% were CFRL. The fraction of species in the different forest type and species groups differed significantly between the two spatial scales for several groups, although the overall differences in composition were relatively small. Red-listed species had more confined distribution patterns, suggesting that many nationally red-listed species owe their status to being at the edge of their distribution range. An up-scaling had a large effect on which species designated to a Red List, but a relatively small impact on which organism groups or forest types that contained most red-listed species. A regional perspective generated by compilation of national Red Lists can give valuable complementary information on the status of species and effects of scale. Numéro de notice : A2017-613 Affiliation des auteurs : non IGN Thématique : BIODIVERSITE/FORET Nature : Article DOI : 10.1016/j.gecco.2017.07.005 En ligne : https://doi.org/10.1016/j.gecco.2017.07.005 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=86922 [article]

Economics of harvesting uneven-aged forest stands in Fennoscandia / Janne Rämo in Scandinavian journal of forest research, vol 29 n° 8 (October 2014)  

Public [article]  inScandinavian journal of forest research > vol 29 n° 8 (October 2014) . - pp 777 - 792 Titre : Economics of harvesting uneven-aged forest stands in Fennoscandia Type de document : Article/Communication Auteurs : Janne Rämo, Auteur ; Olli Tahvonen, Auteur Année de publication : 2014 Article en page(s) : pp 777 - 792 Note générale : bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Economie [Termes IGN] Betula (genre) [Termes IGN] Fennoscandie [Termes IGN] forêt inéquienne [Termes IGN] peuplement forestier [Termes IGN] Picea abies [Termes IGN] Pinus sylvestris [Termes IGN] rendement Résumé : (auteur) This study analyzes the optimal harvesting of uneven-aged Norway spruce (Picea abies (L.) Karst.), Scots pine (Pinus sylvestris L.), and birch (Betula pendula Roth. and B. pubescens Ehrh.) stands. The analysis is based on an economic description of uneven-aged forestry using a size-structured transition matrix model and a single-tree model. The optimization problem is solved in its general dynamic form using gradient-based interior point methods. Increasing the harvesting interval decreases the annual volume yield. Assuming natural regeneration, this suggests that volume yield is maximized by uneven-aged rather than even-aged management. The present value of stumpage revenues is maximized after saw timber and pulpwood prices, interest rate, and a 15-year harvesting interval are included. The economically optimal solution with a 3% interest rate produces an annual yield of 1.9, 6.2, and 3.1 cubic meters for Scots pine, Norway spruce, and birch, respectively. Both the optimal volume yield and net present value maximization solutions converge to unique species- and site-type-specific steady states with constant harvests. The transition matrix model typically used in optimization studies is computationally less demanding than the single-tree model, but the differences in optimal solutions are more remarkable than earlier studies suggest. Numéro de notice : A2014-783 Affiliation des auteurs : non IGN Thématique : FORET Nature : Article DOI : 10.1080/02827581.2014.982166 Date de publication en ligne : 31/10/2014 En ligne : http://dx.doi.org/10.1080/02827581.2014.982166 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=79380 [article]

ITRF2008 plate motion model / Zuheir Altamimi in Journal of geophysical research : Solid Earth, Vol 117 n° B7 (July 2012)  

Public [article]  inJournal of geophysical research : Solid Earth > Vol 117 n° B7 (July 2012) Titre : ITRF2008 plate motion model Type de document : Article/Communication Auteurs : Zuheir Altamimi , Auteur ; Laurent Métivier , Auteur ; Xavier Collilieux , Auteur Année de publication : 2012 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Systèmes de référence et réseaux [Termes IGN] Fennoscandie [Termes IGN] International Terrestrial Reference Frame [Termes IGN] modèle de déformation tectonique [Termes IGN] tectonique des plaques Résumé : (Auteur) [1] The ITRF2008 velocity field is demonstrated to be of higher quality and more precise than past ITRF solutions. We estimated an absolute tectonic plate motion model made up of 14 major plates, using velocities of 206 sites of high geodetic quality (far from plate boundaries, deformation zones and Glacial Isostatic Adjustment (GIA) regions), derived from and consistent with ITRF2008. The precision of the estimated model is evaluated to be at the level of 0.3 mm/a WRMS. No GIA corrections were applied to site velocities prior to estimating plate rotation poles, as our selected sites are outside the Fennoscandia regions where the GIA models we tested are performing reasonably well, and far from GIA areas where the models would degrade the fit (Antarctica and North America). Our selected velocity field has small origin rate bias components following the three axis (X, Y, Z), respectively 0.41 ± 0.54, 0.22 ± 0.64 and 0.41 ± 0.60 (95 per cent confidence limits). Comparing our model to NNR‐NUVEL‐1A and the newly available NNR‐MORVEL56, we found better agreement with NNR‐MORVEL56 than with NNR‐NUVEL‐1A for all plates, except for Australia where we observe an average residual rotation rate of 4 mm/a. Using our selection of sites, we found large global X‐rotation rates between the two models (0.016°/Ma) and between our model and NNR‐MORVEL56 of 0.023°/Ma, equivalent to 2.5 mm/a at the Earth surface. Numéro de notice : A2012-745 Affiliation des auteurs : LAREG (1991-2011) Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1029/2011JB008930 Date de publication en ligne : 04/07/2012 En ligne : https://doi.org/10.1029/2011JB008930 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=91514 [article]

Determination of postglacial land uplift in Fennoscandia from leveling, tide-gauges and continuous GPS stations using least squares collocation / O. Vestol in Journal of geodesy, vol 80 n° 5 (August 2006)  

Public [article]  inJournal of geodesy > vol 80 n° 5 (August 2006) . - pp 248 - 258 Titre : Determination of postglacial land uplift in Fennoscandia from leveling, tide-gauges and continuous GPS stations using least squares collocation Type de document : Article/Communication Auteurs : O. Vestol, Auteur Année de publication : 2006 Article en page(s) : pp 248 - 258 Note générale : Bibliographie Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Applications de géodésie spatiale [Termes IGN] altitude [Termes IGN] collocation par moindres carrés [Termes IGN] données altimétriques [Termes IGN] données GPS [Termes IGN] données marégraphiques [Termes IGN] Fennoscandie [Termes IGN] rebond post-glaciaire [Termes IGN] réseau de nivellement [Termes IGN] réseau géodésique local [Termes IGN] réseau géodésique permanent [Termes IGN] station permanente [Termes IGN] tectonique des plaques Résumé : (Auteur) Precise leveling, tide-gauge recordings and time series from continuous GPS stations are all sources of information about the ongoing postglacial land uplift in Fennoscandia. This article describes how to gather these three sources of data together in a least-squares collocation adjustment in order to calculate uplift rates, as well as new heights for the benchmarks in the leveling network. The estimated reliability of the resulting uplift model is in general better than 0.4 mm/year, decreasing in areas of fewer data. Copyright Springer Numéro de notice : A2006-367 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Article nature-HAL : ArtAvecCL-RevueIntern DOI : 10.1007/s00190-006-0063-7 En ligne : https://doi.org/10.1007/s00190-006-0063-7 Format de la ressource électronique : URL article Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=28091 [article]

Exemplaires(2)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
266-06071	RAB	Revue	Centre de documentation	En réserve L003	Disponible
266-06072	RAB	Revue	Centre de documentation	En réserve L003	Disponible

Geodesy and geophysics / J. Kakkuri (1993)

Public Titre : Geodesy and geophysics : lectures notes for NKG autumn school 1992 organized by Nordiska kommissionen for geodesi, Korpilampi, Finland, 7-13 september 1992 Type de document : Monographie Auteurs : J. Kakkuri, Auteur Editeur : Helsinki : Finnish Geodetic Institute FGI Année de publication : 1993 Collection : Publications of the Finnish Geodetic Institute, ISSN 0085-6932 num. 115 Importance : 200 p. Format : 18 x 25 cm ISBN/ISSN/EAN : 978-951-711-155-3 Langues : Anglais (eng) Descripteur : [Vedettes matières IGN] Géodésie physique [Termes IGN] Baltique, mer [Termes IGN] Fennoscandie [Termes IGN] géoïde [Termes IGN] géophysique [Termes IGN] niveau moyen des mers [Termes IGN] océanographie [Termes IGN] rebond post-glaciaire [Termes IGN] variation séculaire Index. décimale : 30.40 Géodésie physique Note de contenu : ANDERSEN, O.B. : Preface EKMAN, M. : Postglacial rebound and sea level phenomena, with special refernce to Fennoscandia and Baltic Sea KAKKURI, J. : The stress phenomenon in the Fennoscandian Shield KNUDSEN, P. : Altimetry for geodesy and oceanography TORGE, W. : Gravimetry and tectonics VERMEER, M. : Terrain reduction and griding techniques for geoid determination VERMEER, M. : Geoid determination using frequency domain techniques. Numéro de notice : 60928 Affiliation des auteurs : non IGN Thématique : POSITIONNEMENT Nature : Recueil / ouvrage collectif Permalink : https://documentation.ensg.eu/index.php?lvl=notice_display&id=44218

Exemplaires(1)

Code-barres	Cote	Support	Localisation	Section	Disponibilité
60928-01	30.40	Livre	Centre de documentation	Géodésie	Disponible

Modern techniques in geodesy and surveying / Nordic Geodetic Commission NGC (1989)

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The geopotential / F. Peng (1989)

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Measurements of gravity tides along the "blue road geotraverse" in Fennoscandia / G. Asch (1987)

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The Fennoscandian land uplift gravity lines 1966-1984 / J. Makinen (1986)

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A preliminary investigation on the equator radius of a reference ellipsoid suitable for fennoscandia / B. Wideland (1952)

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On the upheaval of land in Fennoscandia / E. Niskanen (1939)

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