Schuldt, Bernhard

[["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.artnumber","191"],["dc.bibliographiccitation.journal","Frontiers in Plant Science"],["dc.bibliographiccitation.volume","6"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Barus, Henry"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Kotowska, Martyna M."],["dc.contributor.author","Rajab, Yasmin Abou"],["dc.date.accessioned","2018-11-07T09:59:24Z"],["dc.date.available","2018-11-07T09:59:24Z"],["dc.date.issued","2015"],["dc.description.abstract","For decades it has been assumed that the largest vessels are generally found in roots and that vessel size and corresponding sapwood area-specific hydraulic conductivity are acropetally decreasing toward the distal twigs. However, recent studies from the perhumid tropics revealed a hump-shaped vessel size distribution. Worldwide tropical perhumid forests are extensively replaced by agroforestry systems often using introduced species of various biogeographical and climatic origins. Nonetheless, it is unknown so far what kind of hydraulic architectural patterns are developed in those agroforestry tree species and which impact this exerts regarding important tree functional traits, such as stem growth, hydraulic efficiency and wood density (WD). We investigated wood anatomical and hydraulic properties of the root, stem and branch wood in Theobroma cacao and five common shade tree species in agroforestry systems on Sulawesi (Indonesia); three of these were strictly perhumid tree species, and the other three tree species are tolerating seasonal drought. The overall goal of our study was to relate these properties to stem growth and other tree functional traits such as foliar nitrogen content and sapwood to leaf area ratio. Our results confirmed a hump-shaped vessel size distribution in nearly all species. Drought-adapted species showed divergent patterns of hydraulic conductivity, vessel density, and relative vessel lumen area between root, stem and branch wood compared to wet forest species. Confirming findings from natural old-growth forests in the same region, WD showed no relationship to specific conductivity. Overall, aboveground growth performance was better predicted by specific hydraulic conductivity than by foliar traits and WD. Our study results suggest that future research on conceptual trade-offs of tree hydraulic architecture should consider biogeographical patterns underlining the importance of anatomical adaptation mechanisms to environment."],["dc.description.sponsorship","Open Access Publikationsfonds 2015"],["dc.identifier.doi","10.3389/fpls.2015.00191"],["dc.identifier.isi","000352504600001"],["dc.identifier.pmid","25873922"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/11858"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/37578"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.relation","SFB 990 | B | B04: Pflanzenproduktivität und Ressourcenaufteilung im Wurzelraum entlang von Gradienten tropischer Landnutzungsintensität und Baumartenvielfalt"],["dc.relation.eissn","1664-462X"],["dc.relation.issn","1664-462X"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.gro","sfb990_journalarticles"],["dc.title","Patterns in hydraulic architecture from roots to branches in six tropical tree species from cacao agroforestry and their relation to wood density and stem growth"],["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","1016"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","Tree Physiology"],["dc.bibliographiccitation.lastpage","1025"],["dc.bibliographiccitation.volume","38"],["dc.contributor.author","Zhang, Ya"],["dc.contributor.author","Lamarque, Laurent J."],["dc.contributor.author","Torres-Ruiz, José M."],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Karimi, Zohreh"],["dc.contributor.author","Li, Shan"],["dc.contributor.author","Qin, De-Wen"],["dc.contributor.author","Bittencourt, Paulo"],["dc.contributor.author","Burlett, Régis"],["dc.contributor.author","Cao, Kun-Fang"],["dc.contributor.author","Delzon, Sylvain"],["dc.contributor.author","Oliveira, Rafael"],["dc.contributor.author","Pereira, Luciano"],["dc.contributor.author","Jansen, Steven"],["dc.date.accessioned","2019-07-09T11:45:50Z"],["dc.date.available","2019-07-09T11:45:50Z"],["dc.date.issued","2018"],["dc.description.abstract","Methods to estimate xylem embolism resistance generally rely on hydraulic measurements, which can be far from straightforward. Recently, a pneumatic method based on air flow measurements of terminal branch ends was proposed to construct vulnerability curves by linking the amount of air extracted from a branch with the degree of embolism. We applied this novel technique for 10 temperate tree species, including six diffuse, two ring-porous and two gymnosperm species, and compared the pneumatic curves with hydraulic ones obtained from either the flow-centrifuge or the hydraulic-bench dehydration method. We found that the pneumatic method provides a good estimate of the degree of xylem embolism for all angiosperm species. The xylem pressure at 50% and 88% loss of hydraulic conductivity (i.e., Ψ50 and Ψ88) based on the methods applied showed a strongly significant correlation for all eight angiosperms. However, the pneumatic method showed significantly reduced Ψ50 values for the two conifers. Our findings suggest that the pneumatic method could provide a fast and accurate approach for angiosperms due to its convenience and feasibility, at least within the range of embolism resistances covered by our samples."],["dc.identifier.doi","10.1093/treephys/tpy015"],["dc.identifier.pmid","29474679"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15323"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59316"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","1758-4469"],["dc.rights","CC BY-NC-ND 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by-nc-nd/4.0"],["dc.subject.ddc","570"],["dc.title","Testing the plant pneumatic method to estimate xylem embolism resistance in stems of temperate trees"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","5611"],["dc.bibliographiccitation.issue","22"],["dc.bibliographiccitation.journal","Journal of Experimental Botany"],["dc.bibliographiccitation.lastpage","5623"],["dc.bibliographiccitation.volume","69"],["dc.contributor.author","Klepsch, Matthias"],["dc.contributor.author","Zhang, Ya"],["dc.contributor.author","Kotowska, Martyna M"],["dc.contributor.author","Lamarque, Laurent J"],["dc.contributor.author","Nolf, Markus"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Torres-Ruiz, José M"],["dc.contributor.author","Qin, De-Wen"],["dc.contributor.author","Choat, Brendan"],["dc.contributor.author","Delzon, Sylvain"],["dc.contributor.author","Scoffoni, Christine"],["dc.contributor.author","Cao, Kun-Fang"],["dc.contributor.author","Jansen, Steven"],["dc.date.accessioned","2019-07-09T11:50:22Z"],["dc.date.available","2019-07-09T11:50:22Z"],["dc.date.issued","2018"],["dc.description.abstract","According to the hydraulic vulnerability segmentation hypothesis, leaves are more vulnerable to decline of hydraulic conductivity than branches, but whether stem xylem is more embolism resistant than leaves remains unclear. Drought-induced embolism resistance of leaf xylem was investigated based on X-ray microcomputed tomography (microCT) for Betula pendula, Laurus nobilis, and Liriodendron tulipifera, excluding outside-xylem, and compared with hydraulic vulnerability curves for branch xylem. Moreover, bordered pit characters related to embolism resistance were investigated for both organs. Theoretical P50 values (i.e. the xylem pressure corresponding to 50% loss of hydraulic conductance) of leaves were generally within the same range as hydraulic P50 values of branches. P50 values of leaves were similar to branches for L. tulipifera (-2.01 versus -2.10 MPa, respectively), more negative for B. pendula (-2.87 versus -1.80 MPa), and less negative for L. nobilis (-6.4 versus -9.2 MPa). Despite more narrow conduits in leaves than branches, mean interconduit pit membrane thickness was similar in both organs, but significantly higher in leaves of B. pendula than in branches. This case study indicates that xylem shows a largely similar embolism resistance across leaves and branches, although differences both within and across organs may occur, suggesting interspecific variation with regard to the hydraulic vulnerability segmentation hypothesis."],["dc.identifier.doi","10.1093/jxb/ery321"],["dc.identifier.pmid","30184113"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/15922"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/59758"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.relation.issn","1460-2431"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.subject.ddc","570"],["dc.title","Is xylem of angiosperm leaves less resistant to embolism than branches? Insights from microCT, hydraulics, and anatomy"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","1194"],["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.journal","Frontiers in plant science"],["dc.bibliographiccitation.lastpage","13"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Kirfel, Kristina"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Schuldt, Bernhard"],["dc.date.accessioned","2018-02-26T10:41:44Z"],["dc.date.available","2018-02-26T10:41:44Z"],["dc.date.issued","2017"],["dc.description.abstract","Despite their importance for water uptake and transport, the xylem anatomical and hydraulic properties of tree roots have only rarely been studied in the field. We measured mean vessel diameter (D), vessel density (VD), relative vessel lumen area (lumen area per xylem area) and derived potential hydraulic conductivity (Kp) in the xylem of 197 fine- to medium-diameter roots (1-10 mm) in the topsoil and subsoil (0-200 cm) of a mature European beech forest on sandy soil for examining the influence of root diameter and soil depth on xylem anatomical and derived hydraulic traits. All anatomical and functional traits showed strong dependence on root diameter and thus root age but no significant relation to soil depth. Averaged over topsoil and deep soil and variable flow path lengths in the roots,Dincreased linearly with root diameter from ∼50 μm in the smallest diameter class (1-2 mm) to ∼70 μm in 6-7 mm roots (corresponding to a mean root age of ∼12 years), but remained invariant in roots >7 mm.Dnever exceeded ∼82 μm in the 1-10 mm roots, probably in order to control the risk of frost- or drought-induced cavitation. This pattern was overlain by a high variability in xylem anatomy among similar-sized roots withKpshowing a higher variance component within than between root diameter classes. With 8% of the roots exceeding averageKpin their diameter class by 50-700%, we obtained evidence of the existence of 'high-conductivity roots' indicating functional differentiation among similar-sized roots. We conclude that the hydraulic properties of small to medium diameter roots of beech are mainly determined by root age, rendering root diameter a suitable predictor of hydraulic functioning, while soil depth - without referring to path length - had a negligible effect."],["dc.description.sponsorship","Open-Access-Publikationsfonds 2017"],["dc.identifier.doi","10.3389/fpls.2017.01194"],["dc.identifier.pmid","28791029"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/14597"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/12608"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.publisher","Frontiers Media S.A."],["dc.relation.eissn","1664-462X"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Influence of Root Diameter and Soil Depth on the Xylem Anatomy of Fine- to Medium-Sized Roots of Mature Beech Trees in the Top- and Subsoil"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["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","1027"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Annals of Forest Science"],["dc.bibliographiccitation.lastpage","1038"],["dc.bibliographiccitation.volume","68"],["dc.contributor.author","Horna, Viviana"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Brix, Sarah"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2018-11-07T08:53:26Z"],["dc.date.available","2018-11-07T08:53:26Z"],["dc.date.issued","2011"],["dc.description.abstract","Introduction We studied stem sap flux density in seven common tree species in a perhumid tropical rainforest at pre-montane elevation in Sulawesi with the aims (1) to analyse the among-species variation in flow patterns, (2) to search for an assumed convergence in the response to controlling environmental factors, and (3) to investigate the effect of tree size on xylem flux. Materials and methods Sap flux density was measured for 20 months in 39 tree individuals of seven species (from six of the most dominant families in the area). Synchronous sap flux density in the outermost xylem differed more than threefold among the species and was highest in the tall Fagaceae Castanopsis acuminatissima. Across the seven species, a tight exponential correlation was found between tree diameter (or tree height) and tree daily water use. Results Daily sap flux density correlated better with atmospheric vapour pressure deficit than with shortwave radiation, in spite of the permanently high atmospheric humidity. Soil moisture did not vary significantly and therefore showed no effect on mean daily sap flux density. The hysteresis in the diurnal plot of xylem flux density against vapour pressure deficit or radiation was larger for radiation supporting the close coupling of flux variation to vapour pressure deficit, which exists even in this perhumid climate. Conclusion We conclude that the species of this perhumid forest show convergent patterns in the environmental control of sap flux. Largely different water consumption rates of coexisting trees were mainly caused by differences in tree size and the position of the tree within the canopy. Our extrapolated daily stand transpiration rates are low in comparison to other tropical forests which may be a consequence of the permanently high air humidity."],["dc.description.sponsorship","German Science Foundation (DFG)"],["dc.identifier.doi","10.1007/s13595-011-0110-2"],["dc.identifier.isi","000294494900015"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/7187"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/22407"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Springer"],["dc.relation.issn","1286-4560"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Environment and tree size controlling stem sap flux in a perhumid tropical forest of Central Sulawesi, Indonesia"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.artnumber","857"],["dc.bibliographiccitation.firstpage","1"],["dc.bibliographiccitation.journal","Frontiers in Plant Science"],["dc.bibliographiccitation.lastpage","12"],["dc.bibliographiccitation.volume","6"],["dc.contributor.author","Lübbe, Torben"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2018-07-19T15:42:34Z"],["dc.date.available","2018-07-19T15:42:34Z"],["dc.date.issued","2015"],["dc.description.abstract","Species diversity may increase the productivity of tree communities through complementarity (CE) and/or selection effects (SE), but it is not well known how this relationship changes under water limitation. We tested the stress-gradient hypothesis, which predicts that resource use complementarity and facilitation are more important under water-limited conditions. We conducted a growth experiment with saplings of five temperate broad-leaved tree species that were grown in assemblages of variable diversity (1, 3, or 5 species) and species composition under ample and limited water supply to examine effects of species richness and species identity on stand- and tree-level productivity. Special attention was paid to effects of neighbor identity on the growth of target trees in mixture as compared to growth in monoculture. Stand productivity was strongly influenced by species identity while a net biodiversity effect (NE) was significant in the moist treatment (mostly assignable to CE) but of minor importance. The growth performance of some of the species in the mixtures was affected by tree neighborhood characteristics with neighbor size likely being more important than neighbor species identity. Diversity and neighbor identity effects visible in the moist treatment mostly disappeared in the dry treatment, disproving the stress-gradient hypothesis. The mixtures were similarly sensitive to drought-induced growth reduction as the monocultures, which may relate to the decreased CE on growth upon drought in the mixtures."],["dc.description.sponsorship","Open-Access Publikationsfonds 2015"],["dc.identifier.doi","10.3389/fpls.2015.00857"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/12565"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/15193"],["dc.language.iso","en"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","final"],["dc.publisher","Frontiers Media S.A."],["dc.relation.eissn","1664-462X"],["dc.rights","CC BY 4.0"],["dc.rights.uri","https://creativecommons.org/licenses/by/4.0"],["dc.title","Species identity and neighbor size surpass the impact of tree species diversity on productivity in experimental broad-leaved tree sapling assemblages under dry and moist conditions"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","2179"],["dc.bibliographiccitation.issue","8"],["dc.bibliographiccitation.journal","BIOGEOSCIENCES"],["dc.bibliographiccitation.lastpage","2194"],["dc.bibliographiccitation.volume","8"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Leuschner, C."],["dc.contributor.author","Horna, Viviana"],["dc.contributor.author","Moser, Gerald"],["dc.contributor.author","Koehler, M."],["dc.contributor.author","van Straaten, Oliver"],["dc.contributor.author","Barus, Henry"],["dc.date.accessioned","2018-11-07T09:00:20Z"],["dc.date.available","2018-11-07T09:00:20Z"],["dc.date.issued","2011"],["dc.description.abstract","A large-scale replicated throughfall exclusion experiment was conducted in a pre-montane perhumid rainforest in Sulawesi (Indonesia) exposing the trees for two years to pronounced soil desiccation. The lack of regularly occurring dry periods and shallow rooting patterns distinguish this experiment from similar experiments conducted in the Amazonian rainforest. We tested the hypotheses that a tree's sun canopy is more affected by soil drought than its shade crown, making tall trees particularly vulnerable even under a perhumid climate, and that extended drought periods stimulate an acclimation in the hydraulic system of the sun canopy. In the abundant and tall tree species Castanopsis acuminatissima (Fagaceae), we compared 31 morphological, anatomical, hydraulic and chemical variables of leaves, branches and the stem together with stem diameter growth between drought and control plots. There was no evidence of canopy dieback. However, the drought treatment led to a 30% reduction in sapwood-specific hydraulic conductivity of sun canopy branches, possibly caused by the formation of smaller vessels and/or vessel filling by tyloses. Drought caused an increase in leaf size, but a decrease in leaf number, and a reduction in foliar calcium content. The delta C-13 and delta O-18 signatures of sun canopy leaves gave no indication of a permanent down-regulation of stomatal conductance during the drought, indicating that presenescent leaf shedding may have improved the water status of the remaining leaves. Annual stem diameter growth decreased during the drought, while the density of wood in the recently produced xylem increased in both the stem and sun canopy branches (marginally significant). The sun canopy showed a more pronounced drought response than the shade crown indicating that tall trees with a large sun canopy are more vulnerable to drought stress. We conclude that the extended drought prompted a number of medium-to long-term responses in the leaves, branches and the trunk, which may have reduced drought susceptibility. However, unlike a natural drought, our drought simulation experiment was carried out under conditions of high humidity, which may have dampened drought induced damages."],["dc.description.sponsorship","German Science Foundation [SFB 552]"],["dc.identifier.doi","10.5194/bg-8-2179-2011"],["dc.identifier.isi","000294457100012"],["dc.identifier.purl","https://resolver.sub.uni-goettingen.de/purl?gs-1/8422"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/24130"],["dc.notes.intern","Merged from goescholar"],["dc.notes.status","zu prüfen"],["dc.notes.submitter","Najko"],["dc.publisher","Copernicus Gesellschaft Mbh"],["dc.relation.issn","1726-4170"],["dc.rights","Goescholar"],["dc.rights.uri","https://goescholar.uni-goettingen.de/licenses"],["dc.title","Change in hydraulic properties and leaf traits in a tall rainforest tree species subjected to long-term throughfall exclusion in the perhumid tropics"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.peerReviewed","yes"],["dc.type.status","published"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.issue","6"],["dc.bibliographiccitation.journal","Forests"],["dc.bibliographiccitation.volume","13"],["dc.contributor.affiliation","Kumar, Manish; 1Ecophysiology and Vegetation Ecology, Julius-von-Sachs-Institute of Biological Sciences, University of Würzburg, Julius-von-Sachs-Platz 3, 97082 Würzburg, Germany; manish.kumar@uni-wuerzburg.de (M.K.); pierre-andre.waite@uni-wuerzburg.de (P.-A.W.); sharath.paligi@uni-goettingen.de (S.S.P.)"],["dc.contributor.affiliation","Waite, Pierre-André; 1Ecophysiology and Vegetation Ecology, Julius-von-Sachs-Institute of Biological Sciences, University of Würzburg, Julius-von-Sachs-Platz 3, 97082 Würzburg, Germany; manish.kumar@uni-wuerzburg.de (M.K.); pierre-andre.waite@uni-wuerzburg.de (P.-A.W.); sharath.paligi@uni-goettingen.de (S.S.P.)"],["dc.contributor.affiliation","Paligi, Sharath Shyamappa; 1Ecophysiology and Vegetation Ecology, Julius-von-Sachs-Institute of Biological Sciences, University of Würzburg, Julius-von-Sachs-Platz 3, 97082 Würzburg, Germany; manish.kumar@uni-wuerzburg.de (M.K.); pierre-andre.waite@uni-wuerzburg.de (P.-A.W.); sharath.paligi@uni-goettingen.de (S.S.P.)"],["dc.contributor.affiliation","Schuldt, Bernhard; 1Ecophysiology and Vegetation Ecology, Julius-von-Sachs-Institute of Biological Sciences, University of Würzburg, Julius-von-Sachs-Platz 3, 97082 Würzburg, Germany; manish.kumar@uni-wuerzburg.de (M.K.); pierre-andre.waite@uni-wuerzburg.de (P.-A.W.); sharath.paligi@uni-goettingen.de (S.S.P.)"],["dc.contributor.author","Kumar, Manish"],["dc.contributor.author","Waite, Pierre-André"],["dc.contributor.author","Paligi, Sharath Shyamappa"],["dc.contributor.author","Schuldt, Bernhard"],["dc.date.accessioned","2022-07-11T06:53:44Z"],["dc.date.available","2022-07-11T06:53:44Z"],["dc.date.issued","2022-06-10"],["dc.date.updated","2022-07-08T12:13:02Z"],["dc.description.abstract","The evolution of the internal water transport system was a prerequisite for high plant productivity. In times of climate change, understanding the dependency of juvenile growth on xylem hydraulic physiology is therefore of high importance. Here, we explored various wood anatomical, hydraulic, and leaf morphological traits related to hydraulic safety and efficiency in three temperate broadleaved tree species (Acer pseudoplatanus, Betula pendula, and Sorbus aucuparia). We took advantage of a severe natural heat wave that resulted in different climatic growing conditions for even-aged plants from the same seed source growing inside a greenhouse and outside. Inside the greenhouse, the daily maximum vapour pressure deficit was on average 36% higher than outside during the growing seasons. Because of the higher atmospheric moisture stress, the biomass production differed up to 5.6-fold between both groups. Except for one species, a high productivity was associated with a high hydraulic efficiency caused by large xylem vessels and a large, supported leaf area. Although no safety-efficiency trade-off was observed, productivity was significantly related to P50 in two of the tree species but without revealing any clear pattern. A considerable plasticity in given traits was observed between both groups, with safety-related traits being more static while efficiency-related traits revealed a higher intra-specific plasticity. This was associated with other wood anatomical and leaf morphological adjustments. We confirm that a high hydraulic efficiency seems to be a prerequisite for a high biomass production, while our controversial results on the growth–xylem safety relationship confirm that safety-efficiency traits are decoupled and that their relationship with juvenile growth and water regime is species-specific."],["dc.description.sponsorship","Indian Council of Agricultural Research (ICAR)"],["dc.identifier.doi","10.3390/f13060909"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/112424"],["dc.language.iso","en"],["dc.relation.eissn","1999-4907"],["dc.rights","CC BY 4.0"],["dc.title","Influence of Juvenile Growth on Xylem Safety and Efficiency in Three Temperate Tree Species"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dc.type.subtype","original_ja"],["dc.type.version","published_version"],["dspace.entity.type","Publication"]]