Link, Roman Mathias

[["dc.bibliographiccitation.firstpage","1675"],["dc.bibliographiccitation.issue","12"],["dc.bibliographiccitation.journal","Forests"],["dc.bibliographiccitation.volume","12"],["dc.contributor.author","Röll, Alexander"],["dc.contributor.author","Ramesha, Mundre N."],["dc.contributor.author","Link, Roman M."],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Patil, Shekhargouda L."],["dc.contributor.author","Hölscher, Dirk"],["dc.date.accessioned","2022-02-01T10:31:47Z"],["dc.date.available","2022-02-01T10:31:47Z"],["dc.date.issued","2021"],["dc.description.abstract","Farmland tree cultivation is considered an important option for enhancing wood production. In South India, the native leaf-deciduous tree species Melia dubia is popular for short-rotation plantations. Across a rainfall gradient from 420 to 2170 mm year–1, we studied 186 farmland woodlots between one and nine years in age. The objectives were to identify the main factors controlling aboveground biomass (AGB) and growth rates. A power-law growth model predicts an average stand-level AGB of 93.8 Mg ha–1 for nine-year-old woodlots. The resulting average annual AGB increment over the length of the rotation cycle is 10.4 Mg ha–1 year–1, which falls within the range reported for other tropical tree plantations. When expressing the parameters of the growth model as functions of management, climate and soil variables, it explains 65% of the variance in AGB. The results indicate that water availability is the main driver of the growth of M. dubia. Compared to the effects of water availability, the effects of soil nutrients are 26% to 60% smaller. We conclude that because of its high biomass accumulation rates in farm forestry, M. dubia is a promising candidate for short-rotation plantations in South India and beyond."],["dc.description.abstract","Farmland tree cultivation is considered an important option for enhancing wood production. In South India, the native leaf-deciduous tree species Melia dubia is popular for short-rotation plantations. Across a rainfall gradient from 420 to 2170 mm year–1, we studied 186 farmland woodlots between one and nine years in age. The objectives were to identify the main factors controlling aboveground biomass (AGB) and growth rates. A power-law growth model predicts an average stand-level AGB of 93.8 Mg ha–1 for nine-year-old woodlots. The resulting average annual AGB increment over the length of the rotation cycle is 10.4 Mg ha–1 year–1, which falls within the range reported for other tropical tree plantations. When expressing the parameters of the growth model as functions of management, climate and soil variables, it explains 65% of the variance in AGB. The results indicate that water availability is the main driver of the growth of M. dubia. Compared to the effects of water availability, the effects of soil nutrients are 26% to 60% smaller. We conclude that because of its high biomass accumulation rates in farm forestry, M. dubia is a promising candidate for short-rotation plantations in South India and beyond."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2021"],["dc.identifier.doi","10.3390/f12121675"],["dc.identifier.pii","f12121675"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/98945"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-517"],["dc.relation.eissn","1999-4907"],["dc.relation.orgunit","Abteilung Waldbau und Waldökologie der Tropen"],["dc.rights","CC BY 4.0"],["dc.title","Water Availability Controls the Biomass Increment of Melia dubia in South India"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","Plant Biology"],["dc.contributor.author","Weithmann, G."],["dc.contributor.author","Schuldt, B."],["dc.contributor.author","Link, R. M."],["dc.contributor.author","Heil, D."],["dc.contributor.author","Hoeber, S."],["dc.contributor.author","John, H."],["dc.contributor.author","Müller‐Haubold, H."],["dc.contributor.author","Schüller, L.‐M."],["dc.contributor.author","Schumann, K."],["dc.contributor.author","Leuschner, C."],["dc.date.accessioned","2022-01-11T14:06:01Z"],["dc.date.available","2022-01-11T14:06:01Z"],["dc.date.issued","2021"],["dc.identifier.doi","10.1111/plb.13366"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/97807"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-507"],["dc.relation.eissn","1438-8677"],["dc.relation.issn","1435-8603"],["dc.rights.uri","http://creativecommons.org/licenses/by-nc/4.0/"],["dc.title","Leaf trait modification in European beech trees in response to climatic and edaphic drought"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","151"],["dc.bibliographiccitation.journal","Agricultural and Forest Meteorology"],["dc.bibliographiccitation.lastpage","161"],["dc.bibliographiccitation.volume","244-245"],["dc.contributor.author","Fuchs, Sebastian"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Link, Roman"],["dc.contributor.author","Coners, Heinz"],["dc.contributor.author","Schuldt, Bernhard"],["dc.date.accessioned","2018-02-26T10:42:20Z"],["dc.date.available","2018-02-26T10:42:20Z"],["dc.date.issued","2017"],["dc.description.abstract","Sap flow probes are routinely used in forest and horticulture hydrology for estimating tree water use. This requires unbiased measurements when upscaling from tree to stand level, but accuracy and comparability of different thermometric methods have been questioned. Three sap flow measuring techniques were compared against gravimetric flow measurement in cut stem segments: ‘Granier-type’ thermal dissipation probes (TDP; three different sensor types), the heat field deformation method (HFD), and the heat ratio method (HRM). For the empirical methods (TDP and HFD), new calibration parameters were estimated using a nonlinear hierarchical modelling approach. 66 stem segments from five temperate, diffuse-porous tree species (9–16 cm stem diameter, 100 cm stem length) were exposed to a wide range of flux densities by applying subatmospheric pressure (−50 to −650 hPa) analogous to natural flow conditions in the field. All TDP probes underestimated flux density by 23–45% when calculated with Granier's original calibration parameters, with the deviation increasing with flux rate. The accuracy was significantly improved by estimating new calibration parameters, especially for probes differing from Granier's original sensor design. Species-specific parameters further improved accuracy, although the species differences might partially be explained by variation in the observed ranges of sap flux. The HFD sensor overestimated gravimetric flow by ∼11%; empirical calibration did not improve its accuracy compared to the manufacturer's equation. At low to medium flow rates, the HRM system achieved higher accuracy than the other probes (0.8% underestimation), while performing poorly at high flux rates under our measurement settings (energy input of 25 J). Both for TDP and HFD sensors, we observed a surprisingly large variability in calibration parameters between different stems of the same species. We conclude that (i) TDP and HFD sensors require species-specific calibration to measure sap flux with high accuracy, (ii) the original Granier equation cannot be used for TDP probes with deviating design, and (iii), at low to medium flow rates, the highest accuracy can be achieved with HRM sensors. Our results help to increase the accuracy of tree sap flow measurements with thermal dissipation probes, and to assess various levels of errors related to the different thermometric methods. This is important when synthesizing forest transpiration data on regional and global scales."],["dc.identifier.doi","10.1016/j.agrformet.2017.04.003"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/12609"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.title","Calibration and comparison of thermal dissipation, heat ratio and heat field deformation sap flow probes for diffuse-porous trees"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","Frontiers in Forests and Global Change"],["dc.bibliographiccitation.volume","3"],["dc.contributor.affiliation","Kotowska, Martyna M.; 1Plant Ecology and Ecosystems Research, Albrecht von Haller Institute for Plant Sciences, University of Goettingen, Göttingen, Germany"],["dc.contributor.affiliation","Link, Roman M.; 1Plant Ecology and Ecosystems Research, Albrecht von Haller Institute for Plant Sciences, University of Goettingen, Göttingen, Germany"],["dc.contributor.affiliation","Röll, Alexander; 3Tropical Silviculture and Forest Ecology, University of Goettingen, Göttingen, Germany"],["dc.contributor.affiliation","Hertel, Dietrich; 1Plant Ecology and Ecosystems Research, Albrecht von Haller Institute for Plant Sciences, University of Goettingen, Göttingen, Germany"],["dc.contributor.affiliation","Hölscher, Dirk; 3Tropical Silviculture and Forest Ecology, University of Goettingen, Göttingen, Germany"],["dc.contributor.affiliation","Waite, Pierre-André; 1Plant Ecology and Ecosystems Research, Albrecht von Haller Institute for Plant Sciences, University of Goettingen, Göttingen, Germany"],["dc.contributor.affiliation","Moser, Gerald; 4Plant Ecology, Justus Liebig University of Giessen, Giessen, Germany"],["dc.contributor.affiliation","Tjoa, Aiyen; 5Department of Agrotechnology, Faculty of Agricultural Sciences, Tadulako University, Palu, Indonesia"],["dc.contributor.affiliation","Leuschner, Christoph; 1Plant Ecology and Ecosystems Research, Albrecht von Haller Institute for Plant Sciences, University of Goettingen, Göttingen, Germany"],["dc.contributor.affiliation","Schuldt, Bernhard; 1Plant Ecology and Ecosystems Research, Albrecht von Haller Institute for Plant Sciences, University of Goettingen, Göttingen, Germany"],["dc.contributor.author","Kotowska, Martyna M."],["dc.contributor.author","Link, Roman M."],["dc.contributor.author","Röll, Alexander"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Hölscher, Dirk"],["dc.contributor.author","Waite, Pierre-André"],["dc.contributor.author","Moser, Gerald"],["dc.contributor.author","Tjoa, Aiyen"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Schuldt, Bernhard"],["dc.date.accessioned","2021-05-17T16:13:19Z"],["dc.date.accessioned","2021-10-27T13:11:43Z"],["dc.date.available","2021-05-17T16:13:19Z"],["dc.date.available","2021-10-27T13:11:43Z"],["dc.date.issued","2021"],["dc.date.updated","2022-09-06T14:25:58Z"],["dc.description.abstract","The efficiency of the water transport system in trees sets physical limits to their productivity and water use. Although the coordination of carbon assimilation and hydraulic functions has long been documented, the mutual inter-relationships between wood anatomy, water use and productivity have not yet been jointly addressed in comprehensive field studies. Based on observational data from 99 Indonesian rainforest tree species from 37 families across 22 plots, we analyzed how wood anatomy and sap flux density relate to tree size and wood density, and tested their combined influence on aboveground biomass increment (ABI) and daily water use (DWU). Results from pairwise correlations were compared to the outcome of a structural equation model (SEM). Across species, we found a strong positive correlation between ABI and DWU. Wood hydraulic anatomy was more closely related to these indicators of plant performance than wood density. According to the SEM, the common effect of average tree size and sap flux density on the average stem increment and water use of a species was sufficient to fully explain the observed correlation between these variables. Notably, after controlling for average size, only a relatively small indirect effect of wood properties on stem increment and water use remained that was mediated by sap flux density, which was significantly higher for species with lighter and hydraulically more efficient wood. We conclude that wood hydraulic traits are mechanistically linked to water use and productivity via their influence on sap flow, but large parts of these commonly observed positive relationships can be attributed to confounding size effects."],["dc.description.sponsorship","Open-Access-Publikation 2020"],["dc.identifier.doi","10.3389/ffgc.2020.598759"],["dc.identifier.doi","10.3389/ffgc.2020.598759.s001"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/17787"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/91618"],["dc.language.iso","en"],["dc.notes.intern","Migrated from goescholar"],["dc.relation","SFB 990: Ökologische und sozioökonomische Funktionen tropischer Tieflandregenwald-Transformationssysteme (Sumatra, Indonesien)"],["dc.relation","SFB 990 | A | A02: Wassernutzungseigenschaften von Bäumen und Palmen in Regenwald-Transformationssystemen Zusammenfassung"],["dc.relation","SFB 990 | B | B04: Pflanzenproduktivität und Ressourcenaufteilung im Wurzelraum entlang von Gradienten tropischer Landnutzungsintensität und Baumartenvielfalt"],["dc.relation.eissn","2624-893X"],["dc.relation.orgunit","Fakultät für Biologie und Psychologie"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.subject.ddc","570"],["dc.subject.gro","sfb990_journalarticles"],["dc.title","Effects of wood hydraulic properties on water use and productivity of tropical rainforest trees"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","629"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Oecologia"],["dc.bibliographiccitation.lastpage","644"],["dc.bibliographiccitation.volume","198"],["dc.contributor.author","Weithmann, Greta"],["dc.contributor.author","Link, Roman M."],["dc.contributor.author","Banzragch, Bat-Enerel"],["dc.contributor.author","Würzberg, Laura"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Schuldt, Bernhard"],["dc.date.accessioned","2022-04-01T10:01:08Z"],["dc.date.available","2022-04-01T10:01:08Z"],["dc.date.issued","2022"],["dc.description.abstract","Abstract Xylem embolism resistance has been identified as a key trait with a causal relation to drought-induced tree mortality, but not much is known about its intra-specific trait variability (ITV) in dependence on environmental variation. We measured xylem safety and efficiency in 300 European beech (F agus sylvatica L.) trees across 30 sites in Central Europe, covering a precipitation reduction from 886 to 522 mm year −1 . A broad range of variables that might affect embolism resistance in mature trees, including climatic and soil water availability, competition, and branch age, were examined. The average P 50 value varied by up to 1 MPa between sites. Neither climatic aridity nor structural variables had a significant influence on P 50 . However, P 50 was less negative for trees with a higher soil water storage capacity, and positively related to branch age, while specific conductivity ( K s ) was not significantly associated with either of these variables. The greatest part of the ITV for xylem safety and efficiency was attributed to random variability within populations. We conclude that the influence of site water availability on P 50 and K s is low in European beech, and that the high degree of within-population variability for P 50 , partly due to variation in branch age, hampers the identification of a clear environmental signal."],["dc.identifier.doi","10.1007/s00442-022-05124-9"],["dc.identifier.pii","5124"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/105608"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-530"],["dc.relation.eissn","1432-1939"],["dc.relation.issn","0029-8549"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Soil water availability and branch age explain variability in xylem safety of European beech in Central Europe"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","Trees"],["dc.contributor.author","Zimmermann, Jorma"],["dc.contributor.author","Link, Roman M."],["dc.contributor.author","Hauck, Markus"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Schuldt, Bernhard"],["dc.date.accessioned","2021-04-14T08:29:12Z"],["dc.date.available","2021-04-14T08:29:12Z"],["dc.date.issued","2021"],["dc.identifier.doi","10.1007/s00468-021-02090-2"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/82829"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-399"],["dc.relation.eissn","1432-2285"],["dc.relation.issn","0931-1890"],["dc.title","60-year record of stem xylem anatomy and related hydraulic modification under increased summer drought in ring- and diffuse-porous temperate broad-leaved tree species"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","S037811272100966X"],["dc.bibliographiccitation.firstpage","119875"],["dc.bibliographiccitation.journal","Forest Ecology and Management"],["dc.bibliographiccitation.volume","505"],["dc.contributor.author","Ramesha, Mundre N."],["dc.contributor.author","Link, Roman M."],["dc.contributor.author","Paligi, Sharath S."],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Röll, Alexander"],["dc.contributor.author","Hölscher, Dirk"],["dc.contributor.author","Schuldt, Bernhard"],["dc.date.accessioned","2022-04-01T10:02:25Z"],["dc.date.available","2022-04-01T10:02:25Z"],["dc.date.issued","2022"],["dc.identifier.doi","10.1016/j.foreco.2021.119875"],["dc.identifier.pii","S037811272100966X"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/105905"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-530"],["dc.relation.issn","0378-1127"],["dc.rights.uri","https://www.elsevier.com/tdm/userlicense/1.0/"],["dc.title","Variability in growth-determining hydraulic wood and leaf traits in Melia dubia across a steep water availability gradient in southern India"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","329"],["dc.bibliographiccitation.journal","Journal of Theoretical Biology"],["dc.bibliographiccitation.lastpage","341"],["dc.bibliographiccitation.volume","455"],["dc.contributor.author","Link, Roman M."],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Choat, Brendan"],["dc.contributor.author","Jansen, Steven"],["dc.contributor.author","Cobb, Alexander R."],["dc.date.accessioned","2020-12-10T14:25:27Z"],["dc.date.available","2020-12-10T14:25:27Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1016/j.jtbi.2018.07.036"],["dc.identifier.issn","0022-5193"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/72559"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Maximum-likelihood estimation of xylem vessel length distributions"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.journal","New Phytologist"],["dc.contributor.author","Fuchs, Sebastian"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Link, Roman Mathias"],["dc.contributor.author","Schuldt, Bernhard"],["dc.date.accessioned","2021-06-01T10:47:28Z"],["dc.date.available","2021-06-01T10:47:28Z"],["dc.date.issued","2021"],["dc.identifier.doi","10.1111/nph.17448"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/85614"],["dc.language.iso","en"],["dc.notes.intern","DOI-Import GROB-425"],["dc.relation.eissn","1469-8137"],["dc.relation.issn","0028-646X"],["dc.title","Hydraulic variability of three temperate broadleaf tree species along a water availability gradient in Central Europe"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","107913"],["dc.bibliographiccitation.journal","Agricultural and Forest Meteorology"],["dc.bibliographiccitation.volume","287"],["dc.contributor.author","Link, Roman M."],["dc.contributor.author","Fuchs, Sebastian"],["dc.contributor.author","Arias Aguilar, Dagoberto"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Castillo Ugalde, Marvin"],["dc.contributor.author","Valverde Otarola, Juan Carlos"],["dc.contributor.author","Schuldt, Bernhard"],["dc.date.accessioned","2020-12-10T14:22:17Z"],["dc.date.available","2020-12-10T14:22:17Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.1016/j.agrformet.2020.107913"],["dc.identifier.issn","0168-1923"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/71568"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Tree height predicts the shape of radial sap flow profiles of Costa-Rican tropical dry forest tree species"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]