Hertel, Dietrich

[["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","1173"],["dc.bibliographiccitation.issue","5"],["dc.bibliographiccitation.journal","Agroforestry Systems"],["dc.bibliographiccitation.lastpage","1187"],["dc.bibliographiccitation.volume","87"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Moser, Gerald"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Erasmi, Stefan"],["dc.contributor.author","Leitner, Daniela"],["dc.contributor.author","Culmsee, Heike"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Schwendenmann, Luitgard"],["dc.date.accessioned","2018-08-10T14:37:12Z"],["dc.date.accessioned","2020-05-11T13:21:03Z"],["dc.date.available","2018-08-10T14:37:12Z"],["dc.date.available","2020-05-11T13:21:03Z"],["dc.date.issued","2013"],["dc.description.abstract","Tropical forests store a large part of the terrestrial carbon and play a key role in the global carbon (C) cycle. In parts of Southeast Asia, conversion of natural forest to cacao agroforestry systems is an important driver of deforestation, resulting in C losses from biomass and soil to the atmosphere. This case study from Sulawesi, Indonesia, compares natural forest with nearby shaded cacao agroforests for all major above and belowground biomass C pools (n = 6 plots) and net primary production (n = 3 plots). Total biomass (above- and belowground to 250 cm soil depth) in the forest (approx. 150 Mg C ha−1) was more than eight times higher than in the agroforest (19 Mg C ha−1). Total net primary production (NPP, above- and belowground) was larger in the forest than in the agroforest (approx. 29 vs. 20 Mg dry matter (DM) ha−1 year−1), while wood increment was twice as high in the forest (approx. 6 vs. 3 Mg DM ha−1 year−1). The SOC pools to 250 cm depth amounted to 134 and 78 Mg C ha−1 in the forest and agroforest stands, respectively. Replacement of tropical moist forest by cacao agroforest reduces the biomass C pool by approximately 130 Mg C ha−1; another 50 Mg C ha−1 may be released from the soil. Further, the replacement of forest by cacao agroforest also results in a 70–80 % decrease of the annual C sequestration potential due to a significantly smaller stem increment."],["dc.identifier.doi","10.1007/s10457-013-9628-7"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/65035"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.relation.eissn","1572-9680"],["dc.relation.issn","0167-4366"],["dc.title","Conversion of tropical moist forest into cacao agroforest: consequences for carbon pools and annual C sequestration"],["dc.title.subtitle","consequences for carbon pools and annual C sequestration"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1201"],["dc.bibliographiccitation.journal","Science of The Total Environment"],["dc.bibliographiccitation.lastpage","1208"],["dc.bibliographiccitation.volume","642"],["dc.contributor.author","Mausolf, Katharina"],["dc.contributor.author","Wilm, Paul"],["dc.contributor.author","Härdtle, Werner"],["dc.contributor.author","Jansen, Kirstin"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Sturm, Knut"],["dc.contributor.author","von Oheimb, Goddert"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Fichtner, Andreas"],["dc.date.accessioned","2020-12-10T15:21:13Z"],["dc.date.available","2020-12-10T15:21:13Z"],["dc.date.issued","2018"],["dc.identifier.doi","10.1016/j.scitotenv.2018.06.065"],["dc.identifier.issn","0048-9697"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/72950"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Higher drought sensitivity of radial growth of European beech in managed than in unmanaged forests"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["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.firstpage","289"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Forests"],["dc.bibliographiccitation.volume","11"],["dc.contributor.author","Fuchs, Sebastian"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2020-12-10T18:47:04Z"],["dc.date.available","2020-12-10T18:47:04Z"],["dc.date.issued","2020"],["dc.identifier.doi","10.3390/f11030289"],["dc.identifier.eissn","1999-4907"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/78632"],["dc.language.iso","en"],["dc.notes.intern","DOI Import GROB-354"],["dc.title","Effects of Summer Drought on the Fine Root System of Five Broadleaf Tree Species along a Precipitation Gradient"],["dc.type","journal_article"],["dc.type.internalPublication","yes"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","1481"],["dc.bibliographiccitation.journal","Global Change Biology"],["dc.bibliographiccitation.lastpage","1491"],["dc.bibliographiccitation.volume","20"],["dc.contributor.author","Moser, Gerald"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Horna, Viviana"],["dc.contributor.author","Barus, Henry"],["dc.contributor.author","Leuschner, Christoph"],["dc.date.accessioned","2018-08-01T14:12:07Z"],["dc.date.available","2018-08-01T14:12:07Z"],["dc.date.issued","2014"],["dc.description.abstract","Climate change scenarios predict increases in the frequency and duration of ENSO-related droughts for parts of South-East Asia until the end of this century exposing the remaining rainforests to increasing drought risk. A pan-tropical review of recorded drought-related tree mortalities in more than 100 monitoring plots before, during and after drought events suggested a higher drought-vulnerability of trees in South-East Asian than in Amazonian forests. Here, we present the results of a replicated (n=3 plots) throughfall exclusion experiment in a perhumid tropical rainforest in Sulawesi, Indonesia. In this first large-scale roof experiment outside semihumid eastern Amazonia, 60% of the throughfall was displaced during the first 8months and 80% during the subsequent 17months, exposing the forest to severe soil desiccation for about 17months. In the experiment's second year, wood production decreased on average by 40% with largely different responses of the tree families (ranging from -100 to +100% change). Most sensitive were trees with high radial growth rates under moist conditions. In contrast, tree height was only a secondary factor and wood specific gravity had no influence on growth sensitivity. Fine root biomass was reduced by 35% after 25months of soil desiccation while fine root necromass increased by 250% indicating elevated fine root mortality. Cumulative aboveground litter production was not significantly reduced in this period. The trees from this Indonesian perhumid rainforest revealed similar responses of wood and litter production and root dynamics as those in two semihumid Amazonian forests subjected to experimental drought. We conclude that trees from paleo- or neotropical forests growing in semihumid or perhumid climates may not differ systematically in their growth sensitivity and vitality under sublethal drought stress. Drought vulnerability may depend more on stem cambial activity in moist periods than on tree height or wood specific gravity."],["dc.identifier.doi","10.1111/gcb.12424"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/15226"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.title","Replicated throughfall exclusion experiment in an Indonesian perhumid rainforest"],["dc.title.subtitle","Wood production, litter fall and fine root growth under simulated drought"],["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","623"],["dc.bibliographiccitation.issue","3"],["dc.bibliographiccitation.journal","Trees"],["dc.bibliographiccitation.lastpage","636"],["dc.bibliographiccitation.volume","29"],["dc.contributor.author","Chenlemuge, Tselmeg"],["dc.contributor.author","Schuldt, Bernhard"],["dc.contributor.author","Dulamsuren, Choimaa"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Hauck, Markus"],["dc.date.accessioned","2018-07-30T12:29:15Z"],["dc.date.available","2018-07-30T12:29:15Z"],["dc.date.issued","2014"],["dc.description.abstract","Key message Hydraulic conductivity and wood anatomical traits in Larix sibirica are correlated with macroclimate, and growing season precipitation in particular, along a precipitation gradient of 700 mm year −1 . Abstract Empirical (K s) and theoretical (K p) sapwood area-specific hydraulic conductivity, hydraulically weighted (d h ) and simple (d) tracheid diameters as well as tracheid density (TD) in roots, stems, and branches were studied in Larix sibirica trees, the dominant conifer at the southern, drought-affected range limit of the boreal forest in Inner Asia. We compared the hydraulic architecture of L. sibirica in two stands in Mongolia to larch trees grown in Central Europe under moist conditions and related hydraulics to macroclimate (precipitation, temperature) and productivity (basal area increment, BAI). K s, K p, d h, and d correlated positively, and TD negatively with precipitation, temperature, and also BAI. Mean growing season precipitation (MGSP) seemed to affect the hydraulic traits more than temperature. A meta-analysis covering data of 14 conifer species from the northern hemisphere revealed a general relationship between MGSP and hydraulic traits. In contrast to expectation, K p and d h did not show a steady decline from roots through the stem to branches in L. sibirica, but were of similar size or larger in the stem. Our results suggest that considerable plasticity in the hydraulic architecture is an important element of the drought adaptation of L. sibirica. It combines with drought-induced fine root abscission (as reported from earlier work) which may help to protect larger roots and the stem from cavitation."],["dc.identifier.doi","10.1007/s00468-014-1131-x"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/15213"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.title","Stem increment and hydraulic architecture of a boreal conifer (Larix sibirica) under contrasting macroclimates"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]

[["dc.bibliographiccitation.firstpage","744"],["dc.bibliographiccitation.issue","7"],["dc.bibliographiccitation.journal","Tree Physiology"],["dc.bibliographiccitation.lastpage","756"],["dc.bibliographiccitation.volume","34"],["dc.contributor.author","Hajek, Peter"],["dc.contributor.author","Leuschner, Christoph"],["dc.contributor.author","Hertel, Dietrich"],["dc.contributor.author","Delzon, Sylvain"],["dc.contributor.author","Schuldt, Bernhard"],["dc.date.accessioned","2018-08-01T13:12:04Z"],["dc.date.available","2018-08-01T13:12:04Z"],["dc.date.issued","2014"],["dc.description.abstract","Trees face the dilemma that achieving high plant productivity is accompanied by a risk of drought-induced hydraulic failure due to a trade-off in the trees' vascular system between hydraulic efficiency and safety. By investigating the xylem anatomy of branches and coarse roots, and measuring branch axial hydraulic conductivity and vulnerability to cavitation in 4-year-old field-grown aspen plants of five demes (Populus tremula L. and Populus tremuloides Michx.) differing in growth rate, we tested the hypotheses that (i) demes differ in wood anatomical and hydraulic properties, (ii) hydraulic efficiency and safety are related to xylem anatomical traits, and (iii) aboveground productivity and hydraulic efficiency are negatively correlated to cavitation resistance. Significant deme differences existed in seven of the nine investigated branch-related anatomical and hydraulic traits but only in one of the four coarse-root-related anatomical traits; this likely is a consequence of high intra-plant variation in root morphology and the occurrence of a few ‘high-conductivity roots’. Growth rate was positively related to branch hydraulic efficiency (xylem-specific conductivity) but not to cavitation resistance; this indicates that no marked trade-off exists between cavitation resistance and growth. Both branch hydraulic safety and hydraulic efficiency significantly depended on vessel size and were related to the genetic distance between the demes, while the xylem pressure causing 88% loss of hydraulic conductivity (P88 value) was more closely related to hydraulic efficiency than the commonly used P50 value. Deme-specific variation in the pit membrane structure may explain why vessel size was not directly linked to growth rate. We conclude that branch hydraulic efficiency is an important growth-influencing trait in aspen, while the assumed trade-off between productivity and hydraulic safety is weak."],["dc.identifier.doi","10.1093/treephys/tpu048"],["dc.identifier.uri","https://resolver.sub.uni-goettingen.de/purl?gro-2/15222"],["dc.language.iso","en"],["dc.notes.status","final"],["dc.title","Trade-offs between xylem hydraulic properties, wood anatomy and yield in Populus"],["dc.type","journal_article"],["dc.type.internalPublication","unknown"],["dspace.entity.type","Publication"]]