Spellmann, Hermann

[["dc.bibliographiccitation.firstpage","278"],["dc.bibliographiccitation.issue","11-12"],["dc.bibliographiccitation.journal","Allgemeine Forst- und Jagdzeitung"],["dc.bibliographiccitation.lastpage","292"],["dc.bibliographiccitation.volume","184"],["dc.contributor.author","Uhl, E."],["dc.contributor.author","Ammer, Christian"],["dc.contributor.author","Spellmann, H."],["dc.contributor.author","Schölch, M."],["dc.contributor.author","Pretzsch, Hans"],["dc.date.accessioned","2017-09-07T11:49:38Z"],["dc.date.available","2017-09-07T11:49:38Z"],["dc.date.issued","2013"],["dc.identifier.gro","3149739"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6435"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.title","Zuwachstrend und Stressresilienz von Tanne und Fichte im Vergleich"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.seriesnr","6"],["dc.contributor.author","Wördehoff, René"],["dc.contributor.author","Spellmann, Hermann"],["dc.contributor.author","Evers, Jan"],["dc.contributor.author","Nagel, Jürgen"],["dc.date.accessioned","2018-05-03T10:42:29Z"],["dc.date.available","2018-05-03T10:42:29Z"],["dc.date.issued","2011"],["dc.description.abstract","Die Speicherung von Kohlenstoff in Wäldern ist klimapolitisch ein hochaktuelles Thema, das die niedersächsische Landesregierung mit der vorliegenden Studie aufgreift. Auf der Basis von Inventurdaten und Szenarienrechnungen werden die Mengen an Kohlenstoff hergeleitet, die heute bzw. künftig in niedersächsischen Wäldern und in den aus niedersächsischem Holz hergestellten Produkten gespeichert werden. Die Kohlenstoffstudie richtet sich an alle Betriebe der Forst- und Holzwirtschaft, politische Entscheidungsträger und die interessierte Öffentlichkeit. Sie liefert wichtige Argumente im Kyoto-Folgeprozess und zeigt die Auswirkungen verschiedener waldbaulicher Strategien auf die Kohlenstoffspeicherung in Wäldern und Forstprodukten auf."],["dc.format.extent","IV, 93"],["dc.identifier.doi","10.17875/gup2011-252"],["dc.identifier.isbn","978-3-86395-014-9"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?isbn-978-3-86395-014-9"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/13899"],["dc.identifier.urn","urn:nbn:de:gbv:7-isbn-978-3-86395-014-9-1"],["dc.language.iso","de"],["dc.notes.intern","TASK GROB-550"],["dc.notes.status","zu prüfen"],["dc.publisher","Universitätsverlag Göttingen"],["dc.publisher.place","Göttingen"],["dc.relation.crisseries","Beiträge aus der Nordwestdeutschen Forstlichen Versuchsanstalt"],["dc.relation.ispartofseries","Beiträge aus der Nordwestdeutschen Forstlichen Versuchsanstalt; 06"],["dc.rights","CC BY-ND 3.0"],["dc.rights.uri","http://creativecommons.org/licenses/by-nd/3.0/de"],["dc.title","Kohlenstoffstudie Forst und Holz Niedersachsen"],["dc.type","book"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","278"],["dc.bibliographiccitation.issue","11-12"],["dc.bibliographiccitation.journal","Allgemeine Forst- und Jagdzeitung"],["dc.bibliographiccitation.lastpage","292"],["dc.bibliographiccitation.volume","184"],["dc.contributor.author","Uhl, E."],["dc.contributor.author","Ammer, Christian"],["dc.contributor.author","Spellmann, H."],["dc.contributor.author","Schoelch, M."],["dc.contributor.author","Pretzsch, Hans"],["dc.date.accessioned","2018-11-07T09:29:19Z"],["dc.date.available","2018-11-07T09:29:19Z"],["dc.date.issued","2013"],["dc.description.abstract","The study compares long term growth trend and resilience performances due to drought stress of Silver fir (Abies alba Mill.) and Norway spruce (Picea abies (L.) Karst.). In total, 118 trees of each tree species were dendroecologically analysed. The sample trees were selected from 22 mixed stands of Silver fir and Norway spruce in Bavaria and Lower Saxony (Fig. 1) representing a wide range of ecological growth conditions (Tab. 1). During the last hundred years both tree species show a general increasing level of growth which is interrupted by a growth decline mainly during the 1960ies and 1970ies (Fig. 4). Due to the species specific differences in growth different growth relations occur in the period of observation (Fig. 3). In the time of high rates of sulphur dioxide emissions spruce outranges fir whereas in particular during the last 20 years the growth relation inverts (Fig. 4). Beside the obvious higher vitality in that time Silver fir shows a more stable resilience to the drought stress in 2003 compared to 1976 with higher loads of sulphur deposition (Fig. 6). No differences in resilience behaviour between the two dry years could be observed at Norway spruce. Significant effects by site conditions could only be detected in terms of growth level of Norway spruce (Fig. 7) but not in terms of resilience of both species. Drought reduces growth of both species whereas the effect is lightly stronger pronounced with Norway spruce. The results are discussed with regard to their relevance in understanding the gap between fundamental and real niche of both species and how those are modified by additional stress factors (Fig. 9). Silvicultural implications concerning the involvement of Silver fir in particular in the framework of climate change are drawn."],["dc.identifier.isi","000331350500004"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/31000"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","J D Sauerlanders Verlag"],["dc.relation.issn","0002-5852"],["dc.title","Growth and growth resilience to stress of Silver fir and Norway spruce."],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.issue","1"],["dc.bibliographiccitation.journal","Forest Ecosystems"],["dc.bibliographiccitation.volume","2"],["dc.contributor.author","Albert, Matthias"],["dc.contributor.author","Hansen, Jan"],["dc.contributor.author","Nagel, Jürgen"],["dc.contributor.author","Schmidt, Matthias"],["dc.contributor.author","Spellmann, Hermann"],["dc.date.accessioned","2022-11-04T10:55:29Z"],["dc.date.available","2022-11-04T10:55:29Z"],["dc.date.issued","2015"],["dc.description.abstract","Background\r\n\r\nForest management faces a climate induced shift in growth potential and increasing current and emerging new risks. Vulnerability analysis provides decision support based on projections of natural resources taking risks and uncertainties into account. In this paper we (1) characterize differences in forest dynamics under three management scenarios, (2) analyse the effects of the three scenarios on two risk factors, windthrow and drought stress, and (3) quantify the effects and the amount of uncertainty arising from climate projections on height increment and drought stress.\r\nMethods\r\n\r\nIn four regions in northern Germany, we apply three contrasting management scenarios and project forest development under climate change until 2070. Three climate runs (minimum, median, maximum) based on the emission scenario RCP 8.5 control the site-sensitive forest growth functions. The minimum and maximum climate run define the range of prospective climate development.\r\nResults\r\n\r\nThe projections of different management regimes until 2070 show the diverging medium-term effects of thinnings and harvests and long-term effects of species conversion on a regional scale. Examples of windthrow vulnerability and drought stress reveal how adaptation measures depend on the applied management path and the decision-maker’s risk attitude. Uncertainty analysis shows the increasing variability of drought risk projections with time. The effect of climate projections on height growth are quantified and uncertainty analysis reveals that height growth of young trees is dominated by the age-trend whereas the climate signal in height increment of older trees is decisive.\r\nConclusions\r\n\r\nDrought risk is a serious issue in the eastern regions independent of the applied silvicultural scenario, but adaptation measures are limited as the proportion of the most drought tolerant species Scots pine is already high. Windthrow risk is no serious overall threat in any region, but adequate counter-measures such as species conversion, species mixture or reduction of target diameter can be taken. This simulation study of three silvicultural scenarios and three climate runs spans a decision space of potential forest development to be used for decision making. Which adaptation measures to counteract climate induced risks and uncertainty are to be taken is, however, a matter of individual risk attitude."],["dc.identifier.doi","10.1186/s40663-015-0036-5"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/116943"],["dc.identifier.url","http://dx.doi.org/10.1186/s40663-015-0036-5"],["dc.language.iso","en"],["dc.relation.issn","2197-5620"],["dc.relation.orgunit","Nordwestdeutsche Forstliche Versuchsanstalt"],["dc.rights","CC BY 4.0"],["dc.title","Assessing risks and uncertainties in forest dynamics under different management scenarios and climate change"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.lastpage","26"],["dc.contributor.author","Spellmann, H."],["dc.contributor.author","Bolte, Andreas"],["dc.contributor.author","Vor, T."],["dc.contributor.author","Michl, A."],["dc.contributor.author","Schmidt, O."],["dc.contributor.author","Ammer, Christian"],["dc.contributor.editor","Vor, Torsten"],["dc.contributor.editor","Spellmann, Hermann"],["dc.contributor.editor","Bolte, Andreas"],["dc.contributor.editor","Ammer, Christian"],["dc.date.accessioned","2017-09-07T11:49:41Z"],["dc.date.available","2017-09-07T11:49:41Z"],["dc.date.issued","2015"],["dc.identifier.gro","3149746"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6440"],["dc.language.iso","de"],["dc.notes.status","final"],["dc.notes.submitter","chake"],["dc.publisher","Universitätsverlag Göttingen"],["dc.publisher.place","Göttingen"],["dc.relation.doi","10.17875/gup2015-843"],["dc.relation.isbn","978-3-86395-240-2"],["dc.relation.isbn","978-3-86395-240-2"],["dc.relation.ispartof","Potenziale und Risiken eingeführter Baumarten - Baumartenportraits mit naturschutzfachlicher Bewertung"],["dc.title","Allgemeiner Teil, Zielsetzung, Definitionen, Bewertung"],["dc.type","book_chapter"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","AFZ, der Wald"],["dc.contributor.author","Albert, Matthias"],["dc.contributor.author","Nagel, Jürgen"],["dc.contributor.author","Schmidt, Matthias"],["dc.contributor.author","Nagel, Ralf-Volker"],["dc.contributor.author","Spellmann, Hermann"],["dc.date.accessioned","2022-11-07T10:03:43Z"],["dc.date.available","2022-11-07T10:03:43Z"],["dc.date.issued","2022"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/116944"],["dc.language.iso","en"],["dc.relation.orgunit","Nordwestdeutsche Forstliche Versuchsanstalt"],["dc.title","Eine neue Generation von Ertragstafeln"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.seriesnr","1"],["dc.contributor.author","Rüther, Burkhard"],["dc.contributor.author","Hansen, Jan"],["dc.contributor.author","Ludwig, Agathe"],["dc.contributor.author","Spellmann, Hermann"],["dc.contributor.author","Nagel, Jürgen"],["dc.contributor.author","Möhring, Bernhard"],["dc.contributor.author","Dieter, Matthias"],["dc.date.accessioned","2018-05-03T10:42:43Z"],["dc.date.available","2018-05-03T10:42:43Z"],["dc.date.issued","2007"],["dc.description.abstract","Die Globalisierung der Rohstoff- und Warenmärkte stellt die deutsche Forst- und Holzwirtschaft vor neue Herausforderungen. Sie hat zu einer steigenden Holznachfrage und zum Aufbau neuer Produktionskapazitäten der Holzindustrie geführt. Ziel der Clusterstudie Forst und Holz Niedersachsen ist es, die Wettbewerbsfähigkeit der niedersächsischen Forst- und Holzwirtschaft vor diesem Hintergrund zu stärken. Hierzu wurden die inneren Strukturen (Betriebe, Umsätze, Beschäftigungszahlen) und wirtschaftlichen Potenziale analysiert, die möglichen Holzaufkommen bei Unterstellung verschiedener Bewirtschaftungsstrategien für einen Zeitraum von 30 Jahren prognostiziert und die wesentlichen Einflussfaktoren auf das zu erwartende Nutzungsverhalten der Forstbetriebe aufgezeigt. Die Clusterstudie Forst und Holz Niedersachsen richtet sich an alle dem Cluster angehörenden Betriebe der Forst- und Holzwirtschaft sowie an die nachgelagerten Bereiche, die Verwaltungen, Forschungseinrichtungen und die Politik. Auf der Basis dieser Studie können gemeinsame Strategien der Forst- und Holzwirtschaft entwickelt werden."],["dc.format.extent","IV, 92"],["dc.identifier.doi","10.17875/gup2007-261"],["dc.identifier.isbn","978-3-940344-07-6"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?isbn-978-3-940344-07-6"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/13955"],["dc.identifier.urn","urn:nbn:de:gbv:7-isbn-978-3-940344-07-6-0"],["dc.language.iso","de"],["dc.notes.intern","TASK GROB-550"],["dc.notes.status","final"],["dc.publisher","Universitätsverlag Göttingen"],["dc.publisher.place","Göttingen"],["dc.relation.crisseries","Beiträge aus der Nordwestdeutschen Forstlichen Versuchsanstalt"],["dc.relation.ispartofseries","Beiträge aus der Nordwestdeutschen Forstlichen Versuchsanstalt; 01"],["dc.rights","CC BY-ND 3.0"],["dc.rights.uri","http://creativecommons.org/licenses/by-nd/3.0/de"],["dc.title","Clusterstudie Forst und Holz Niedersachsen"],["dc.type","book"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","5"],["dc.bibliographiccitation.journal","Holztechnologie"],["dc.bibliographiccitation.lastpage","6"],["dc.bibliographiccitation.volume","49"],["dc.contributor.author","Polle, A."],["dc.contributor.author","Hawighorst, P."],["dc.contributor.author","Spellmann, H."],["dc.date.accessioned","2017-09-07T11:49:56Z"],["dc.date.available","2017-09-07T11:49:56Z"],["dc.date.issued","2008"],["dc.identifier.gro","3149778"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/6477"],["dc.language.iso","de"],["dc.notes.status","public"],["dc.notes.submitter","chake"],["dc.title","Innovative Holzprodukte und Holzwerkstoffe aus nachhaltig produziertem Buchen- und Küstentannenholz"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dc.type.peerReviewed","no"],["dspace.entity.type","Publication"]]