Fusing tree‐ring and forest inventory data to infer influences on tree growth DOI Creative Commons
Margaret E. K. Evans, Donald A. Falk, Alexis Arizpe

et al.

Ecosphere, Journal Year: 2017, Volume and Issue: 8(7)

Published: July 1, 2017

Abstract Better understanding and prediction of tree growth is important because the many ecosystem services provided by forests uncertainty surrounding how will respond to anthropogenic climate change. With ultimate goal improving models forest dynamics, here we construct a statistical model that combines complementary data sources, tree‐ring inventory data. A Bayesian hierarchical was used gain inference on effects factors growth—individual size, climate, biophysical conditions, stand‐level competitive environment, tree‐level canopy status, management treatments—using both diameter at breast height (dbh) The consists two multiple regression models, one each for linked via constant proportionality between coefficients are found in parallel regressions. This applied set ~130 increment cores ~500 repeat measurements dbh single site Jemez Mountains north‐central New Mexico, USA . serve as only source information annual responds variation, whereas types inform non‐climatic growth. Inferences from included positive seasonal precipitation, wetness index, ratio, negative dbh, temperature, southerly aspect radiation, plot basal area. Climatic inferred were confirmed dendroclimatic analysis. Combining sources substantially reduced about non‐climate fixed radial increments. demonstrates measured trees, combined with developed small number can be quantify parse influences absolute We highlight kinds research questions addressed combining high‐resolution contained rings rich tree‐ inventories, including projection under future scenarios, carbon accounting, investigation actions aimed increasing resilience.

Language: Английский

A Combined Tree Ring and Vegetation Model Assessment of European Forest Growth Sensitivity to Interannual Climate Variability DOI Open Access
Stefan Klesse, Flurin Babst, Sebastian Lienert

et al.

Global Biogeochemical Cycles, Journal Year: 2018, Volume and Issue: 32(8), P. 1226 - 1240

Published: July 31, 2018

Abstract The response of forest growth to climate variability varies along environmental gradients. A increase and decrease with warming is usually observed in cold‐humid warm‐dry regions, respectively. However, it remains poorly known where the sign these temperature effects switches. Here we introduce a newly developed European tree ring network that has been specifically collected reconstruct aboveground biomass increment (ABI). We quantify, how long‐term (1910–2009) interannual ABI depends on local mean May–August test, if dynamic global vegetation model ensemble reflects resulting patterns. find sites at 8 °C average by 5.7 ± 1.3%, whereas 20 3.0 1.8% m −2 year −1 Δ°C . threshold between beneficial detrimental associated water demand emerged 15.9 1.4 temperature. Because increases proportionally rate—that is, coefficient variation stays constant—we were able validate findings much larger data set had established following classic dendrochronological sampling schemes. While sensitivity pattern well reflected ensemble, there large spread temperatures individual models. Also, models disagree strongly magnitude impact coldest warmest locations, suggesting improvement most needed more accurately predict effectively guide silvicultural practices.

Language: Английский

Citations

67
Environmental drivers interactively affect individual tree growth across temperate European forests DOI
S. Maes, Michael P. Perring, Margot Vanhellemont

et al.

Global Change Biology, Journal Year: 2018, Volume and Issue: 25(1), P. 201 - 217

Published: Oct. 22, 2018

Abstract Forecasting the growth of tree species to future environmental changes requires a better understanding its determinants. Tree is known respond global‐change drivers such as climate change or atmospheric deposition, well local land‐use forest management. Yet, large geographical scale studies examining interactive responses multiple are relatively scarce and rarely consider management effects. Here, we assessed effects three (temperature, precipitation nitrogen deposition) on individual study ( Quercus robur/petraea, Fagus sylvatica Fraxinus excelsior) . We sampled trees along spatial gradients across Europe accounted for collected increment cores from 267 distributed over 151 plots in 19 regions characterized their neighbouring environment take into account potentially confounding factors size, competition, soil conditions elevation. demonstrate that responds interactively drivers, with species‐specific sensitivities combined factors. Simultaneously high levels deposition benefited Fraxinus, but negatively affected Quercus’ growth, highlighting drivers. For Fagus, stronger response higher temperatures was found when also higher, illustrating potential negative drought stress under warming this species. Furthermore, show past can modulate changing growth; individuals coppicing history showed temperatures. Overall, our findings highlight how be determined by these might modulated By showing scenarios change, importance considering including interactions, predicting growth.

Language: Английский

Citations

67
Tree-ring-based disturbance reconstruction in interdisciplinary research: Current state and future directions DOI
Jan Altman

Dendrochronologia, Journal Year: 2020, Volume and Issue: 63, P. 125733 - 125733

Published: July 10, 2020

Language: Английский

Citations

61
The growth ring concept: seeking a broader and unambiguous approach covering tropical species DOI
Marcelo dos S. Silva, Lígia Silveira Funch, Lazaro B. da Silva

et al.

Biological reviews/Biological reviews of the Cambridge Philosophical Society, Journal Year: 2019, Volume and Issue: 94(3), P. 1161 - 1178

Published: Jan. 25, 2019

ABSTRACT The concept of growth rings is little discussed in the literature and their treatment remains somewhat confusing terms diversity structures described. This situation has a major impact on study tropical species, which variations complexity are greater accuracy identification less good. rigid conceptual delimitations used by dendrochronologists wood anatomists temperate regions cannot be applied to most led neglect this subject. With objective discussing rings, present consists survey anatomical, periodicity, causal evolutionary aspects these as evidenced previous studies, evaluation application limitations development concept. Anatomical arise through radial integrity, or presence early late wood; degree distinction may vary from well poorly defined; tangential continuity, meaning that form complete circle transverse section trunk, instead tangentially discontinuous, lens‐shaped wedges. In addition there anatomical markers enable us recognize rings. Regarding annual, infra‐annual supra‐annual. Causal include genetic, endogenous environmental components. Evolutionary continue insufficiently investigated, although comparative studies treat recognized different though they were single character, it questionable whether can regarded homologous result homoplasy. We conclude elaboration robust but broad definition all variation observed species complex task, only possible overcoming restrictions adopted for whom essentially strongly demarcated, continuous restricted pronounced markers.

Language: Английский

Citations

58
Tropical and subtropical dendrochronology: Approaches, applications, and prospects DOI Creative Commons
Adolfo Quesada‐Román, Juan Antonio Ballesteros‐Cánovas, Scott St. George

et al.

Ecological Indicators, Journal Year: 2022, Volume and Issue: 144, P. 109506 - 109506

Published: Sept. 29, 2022

Tropical and subtropical forests cover only 7 % of the Earth’s land surface. Yet, they host nearly half global tree density with a high species number (∼40,000 species), store up to 25 terrestrial carbon represent one-third net primary productivity on Earth. Over last four decades, study growth in tropics has gained substantial momentum, not least because increasing application tropical climatology, ecology, geomorphology, archaeology. So far, various have been shown form rings regular, sometimes annual, layering that is driven by species’ sensitivity climatic, ecological, or geodynamic variations. Here, we provide detailed review dendrochronology studies indicating their (i) patterns, (ii) most common regions studied preferentially families genera trees employed frequently, so as an overview suitable species, (iii) approaches techniques used dendrochronology, (iv) different applications, (v) limitations inherent tree-ring research tropics. The paper concludes call for further this still understudied environment provides potential perspectives future work biodiverse region world.

Language: Английский

Citations

30
Enhanced growth resistance but no decline in growth resilience under long‐term extreme droughts DOI

Xiaona Wang,

Taoran Xu,

Chenxi Xu

et al.

Global Change Biology, Journal Year: 2023, Volume and Issue: 30(1)

Published: Nov. 21, 2023

Abstract The frequency, intensity, and duration of extreme droughts, with devastating impacts on tree growth survival, have increased climate change over the past decades. Assessing resistance resilience to drought is a crucial prerequisite for understanding responses forest functioning events. However, droughts different durations across climatic zones remain unclear. Here, we investigated spatiotemporal patterns in response during 1901–2015, relying tree‐ring chronologies from 2389 stands mid‐ high‐latitudinal Northern Hemisphere, species‐specific plant functional traits, diverse factors. findings revealed that under 1‐year were higher humid regions than arid regions. Significant was observed 2‐year both regions, while did not show significant difference. Temporally, became less resistant resilient 1980–2015 1901–1979 As lengthened, predominant factors weakened instead foliar economic hydraulic soil properties much more important regions; addition, such trends also temporally. Finally, found most Earth system models (ESMs) used this study overestimated underestimated droughts. A comprehensive ecophysiological longer intensified events urgently needed, specific emphasis should be placed improving performance ESMs.

Language: Английский

Citations

19
The climatic drivers of normalized difference vegetation index and tree‐ring‐based estimates of forest productivity are spatially coherent but temporally decoupled in Northern Hemispheric forests DOI
Kristina Seftigen, David Frank, Jesper Björklund

et al.

Global Ecology and Biogeography, Journal Year: 2018, Volume and Issue: 27(11), P. 1352 - 1365

Published: Oct. 15, 2018

Abstract Aim Radial growth and foliage dynamics of trees both play a significant role in the terrestrial carbon cycle. Yet, crucial knowledge gaps exist how these two components are linked. Our goal is to help bridge by providing Northern Hemispheric survey connections between, drivers of, inter‐annual wood canopy–landscape phenology. Location (>30° N) forest ecosystems. Methods We compared multispecies network ca . 700 annually resolved radial tree‐growth records with global inventory modelling mapping studies‐normalized difference vegetation index (GIMMS‐NDVI) estimates greenness between 1982 2012. Tree‐ring data were assimilated into simple process‐based Vaganov–Shashkin Lite model derive xylem phenology on monthly basis contrasted against NDVI canopy additionally determined response all measures temperature precipitation. Results found broad‐scale agreement growing season climate tree seasonally integrated dynamics. On basis, however, temporal asynchrony signals at mid‐ high latitudes was observed, where strongest record occurred around leaf flush, whereas an early‐ mid‐growing signal dominated tree‐ring growth. Main conclusions comprehensive study helps elucidate unique contributions foliar cycling time‐scales which they operate. Although we observed that have similar overall constraints, sensitive distinct seasonal windows. suggests joint assessment stem required address productivity forests demonstrates sensitivities must be considered before combining interpreting metrics.

Language: Английский

Citations

58
A Wood Biology Agenda to Support Global Vegetation Modelling DOI
Pieter A. Zuidema, Benjamin Poulter, David Frank

et al.

Trends in Plant Science, Journal Year: 2018, Volume and Issue: 23(11), P. 1006 - 1015

Published: Sept. 9, 2018

Language: Английский

Citations

51
Large apparent growth increases in boreal forests inferred from tree-rings are an artefact of sampling biases DOI Creative Commons
Louis Duchesne, Daniel Houle, Rock Ouimet

et al.

Scientific Reports, Journal Year: 2019, Volume and Issue: 9(1)

Published: May 2, 2019

Abstract Tree rings are thought to be a powerful tool reconstruct historical growth changes and have been widely used assess tree responses global warming. Demographic inferences suggest, however, that typical sampling procedures induce spurious trends in reconstructions. Here we use the world’s largest single tree-ring dataset (283,536 trees from 136,621 sites) Quebec, Canada, what extent reconstructions based on these - thus any similar data might affected by this problem. Indeed, straightforward rate suggest six-fold increase radial of black spruce ( Picea mariana ) ~0.5 mm yr −1 1800 ~2.5 1990. While strong correlation (R 2 = 0.98) between atmospheric CO could causal relationship, here unambiguously demonstrate trend is an artefact biases caused absence old, fast-growing (cf. “ slow-grower survivorship bias ”) young, slow-growing big-tree selection dataset. At moment, cannot envision how remedy issue incomplete representation cohorts existing large-scale datasets. Thus, innovation will needed before such datasets can for

Language: Английский

Citations

49
Advanced X-ray CT scanning can boost tree ring research for earth system sciences DOI Open Access
Jan Van den Bulcke,

Marijn Boone,

Jan Dhaene

et al.

Annals of Botany, Journal Year: 2019, Volume and Issue: 124(5), P. 837 - 847

Published: July 24, 2019

Abstract Background and Aims Tree rings, as archives of the past biosensors present, offer unique opportunities to study influences fluctuating environment over decades centuries. As such, tree-ring-based wood traits are capital input for global vegetation models. To contribute earth system sciences, however, sufficient spatial coverage is required detailed individual-based measurements, necessitating large amounts data. X-ray computed tomography (CT) scanning one few techniques that can deliver such data sets. Methods Increment cores four different temperate tree species were scanned with a state-of-the-art CT at resolutions ranging from 60 μm down 4.5 μm, an additional scan resolution 0.8 splinter-sized sample using second highlight potential cell-level scanning. Calibration-free densitometry, based on full scanner simulation third system, illustrated increment tropical species. Key Results We show how multiscale offers unprecedented mapping rings without manipulation limited operator intervention. Custom-designed holders enable simultaneous multiple ring analysis densitometry well single core enabling quantitative anatomy, thereby approaching conventional thin section approach. Standardized volumes are, furthermore, ideal imagery automated pipelines neural-based learning detection measurements traits. Conclusions Advanced high-throughput processing within reach, generating pith-to-bark width series, density profiles trait This would allow contribution large-scale monitoring modelling efforts coverage.

Language: Английский

Citations

43