Assessing the stability of radial growth responses to climate change by two dominant conifer trees species in the Tianshan Mountains, northwest China

Jiao, Liang; Jiang, Yuan; Zhang, Wentao; Wang, Mingchang; Wang, Shengjie; Liu, Xuerui

doi:10.1016/j.foreco.2018.11.046

Cited by 43 publications

(25 citation statements)

References 57 publications

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“…The strong and continuous radial growth decrease at the low elevation for all variables (ring, early-and latewood width, and from 1990 for BAI) is consistent with predictions (Primicia et al 2015;Sidor et al 2015;M. Saulnier et al 2019) and with observations of different species including Larix decidua (Obojes et al 2018;Jiao et al 2019;Zhu et al 2018;Marqués et al 2016). However, we find contradictory trends for the high elevation radial growth between BAI and ring width, even if partly explained by the geometrical relationship between both traits.…”

Section: Discussionsupporting

confidence: 88%

Climate warming differently affects Larix decidua ring formation at each end of a French Alps elevational gradient

Rozenberg

Chauvin

Sandoval

et al. 2020

Annals of Forest Science

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& Key message The ongoing global warming tends to reduce Larix decidua radial growth and ring wood density at the bottom of an elevational gradient in the French Alps, while it has a less marked effect at the top. & Context The ongoing climate warming affects most tree species across their biogeographic distribution range. The bottom and the top of an elevational gradient are appropriate environments to observe the effect of climate warming in contrasted temperature conditions. & Aims To retrospectively study the effect of the ongoing climate warming on Larix decidua trees located in warm and cold conditions, i.e., at the bottom (1200 m) and the top (2300 m) of an elevational gradient, respectively. & Methods Dendroecological analysis of two groups of Larix decidua trees located at very low (1200 m) and very high (2300 m) elevations. Construction of climatic response curves for annual ring variables. Decomposition of the variance of the response models into their high and low frequency components. & Results At Briançon, in the French Alps, the increase of the daily maximum temperature during the last 50 years is already almost 3°C for the March-October period. The results reveal contrasted behaviors at both ends of the investigated elevational gradient. Basal area increment, ring width, and their earlywood and latewood components increase or level off at the top of the gradient, while they all strongly decrease at the bottom. At the bottom, the low frequency warming effect explains the recent ring width decrease, with no influence of the high frequency temperature variation. At the top, both the low frequency warming effect Handling Editor: Patrick Fonti This article is part of the topical collection on Wood formation and tree adaptation to climate

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Section: Discussionsupporting

confidence: 88%

Climate warming differently affects Larix decidua ring formation at each end of a French Alps elevational gradient

Rozenberg

Chauvin

Sandoval

et al. 2020

Annals of Forest Science

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“…Previous studies indicated that drought was a major constraint of forest development and tree growth in semiarid regions (Barber et al. , Jiao ).…”

Section: Discussionmentioning

confidence: 97%

Radial growth response of two oaks to climate at their disparate distribution limits in semiarid areas, Beijing, China

Gao

Lei

et al. 2020

Ecosphere

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Impending climate warming is expected to influence plant growth and distribution, and the distribution range limit of tree species is extremely sensitive to climate change. However, synchronous comparisons of responses of different tree species with overlapping ecological niches to climate at their distribution range limit in the same region have received little attention. In the present study, we assessed the discrepancy in radial growth responses of two dominant oak species to climate at their distribution range limit (southern range limit for Quercus mongolica, northern range limit for Quercus variabilis) in Beijing, China. Furthermore, growth–climate relationships were examined using linear mixed‐effects models, and growth trends up to the year 2100 were forecast based on future climate scenarios (RCP2.6 and RCP8.5). Our results indicated that there were no significant differences in the growth response to climate between Q. variabilis at its northern limit and Q. mongolica at its southern limit, and the growth of the two tree species was positively correlated with the minimum temperature and negatively correlated with the climatic moisture deficit of autumn. However, the growth response to climate variables varied at different sites. Additionally, the model forecast showed an increase in radial growth of Q. variabilis at its northern limit and Q. mongolica at its southern limit up to the end of the present century.

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“…With rapid warming in continental Asia, as well as the species-specific and topographic variability of the climatic reactions of trees on the upper forest boundary and in its vicinity observed in this macroregion (e.g., Liang et al, 2006;Babushkina et al, 2018;Bai et al, 2019;Jiao et al, 2019), the analysis of these reactions and the monitoring of forest stands on regional and local scales are important for predicting the dynamics of vegetation under various scenarios of future climate change. Dark conifer species, such as P. sibirica and A. sibirica, are widely distributed in the region and provide a valuable source of industrial wood, but at the same time are vulnerable to climate variations (Kharuk et al, 2013(Kharuk et al, , 2017; therefore, investigation of their climatic responses is of particular interest for the management of Southern Siberian mountain forests.…”

Section: Discussionmentioning

confidence: 99%

“…Therefore, climate warming can give competitive advantages to moisture-loving dark coniferous species in areas with sufficient moisture and to more drought-resistant species in regions with a moisture deficit (Bigler et al, 2007;Chytrý et al, 2008;Kharuk et al, 2009;Berner et al, 2013;Walker et al, 2015;Jiao et al, 2019).…”

Section: Introductionmentioning

confidence: 99%

Sunshine as culprit: It induces early spring physiological drought in dark coniferous (Pinus sibirica and Abies sibirica) alpine forest

Zhirnova

Babushkina

Belokopytova

et al. 2019

Forest Ecology and Management

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Trees comprising high mountain forests have different requirements for site conditions (such as the water supply), thus current climate warming leads to varying reactions of upper forest boundaries depending on the site conditions and ecophysiological features of species. Positive reactions to an increasing heat supply during vegetative season may be hindered for drought-sensitive species by a water deficit in a cold environment, particularly during late winter or early spring. We investigated the radial growth of dark coniferous forest species Siberian stone pine (Pinus sibirica Du Tour) and Siberian fir (Abies sibirica Ledeb.) growing on slopes of different orientation (south-west, east, and north) near the upper forest boundary in an area undergoing fast climate warming: the Western Sayan Mountains (South Siberia, Russia), near a massive water reservoir. Correlations of tree-ring width chronologies with moving 21-day temperature series were used to more precisely determine the timing of temperature influence; an analysis of extreme and optimal years and multifactor regression modeling were applied to assess the most favorable / unfavorable thermal conditions in the study area and to estimate the tree growth reaction to the current climatic trends, respectively. Despite relatively low variation in growth (standard deviation less than 0.2), a significant common climatic signal in tree-ring width was found at all sampling sites. On the shaded northern slopes, P. sibirica is only mildly limited by summer temperatures and has a low similarity (correlations and synchronicity of extreme / optimal years) with other sites. Conversely, the growth of A. sibirica and P. sibirica on two sunlit slopes is similar (r = 0.44-0.81) and has a common pattern of regulation by temperatures before (r =-0.17…-0.40; April 3-May 4 on average) and more significantly during vegetative season (r = 0.31…0.44; May 17-August 27 on average). We hypothesize that both species, being drought-sensitive, undergo water stress in the early spring, and exposition of previous years' needles to severe temperature variation may lead to partial defoliation and xylem embolism, thus suppressing growth. The patterns of climatic response and species distribution on slopes indicate that A. sibirica is more sensitive to this physiological drought and needs gentler slopes than P. sibirica. Temperature increase in the study area during the last decades have occured about five times faster in the early spring (being enhanced by the reservoir) than in summer. This combination of spring and summer warming leads to an increase in P. sibirica radial growth on the northern slope and the stable growth of both species on sunlit slopes, i.e. providing a tentatively optimistic assessment of the dark coniferous forests' near future in the region.

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Assessing the stability of radial growth responses to climate change by two dominant conifer trees species in the Tianshan Mountains, northwest China

Cited by 43 publications

References 57 publications

Climate warming differently affects Larix decidua ring formation at each end of a French Alps elevational gradient

Climate warming differently affects Larix decidua ring formation at each end of a French Alps elevational gradient

Radial growth response of two oaks to climate at their disparate distribution limits in semiarid areas, Beijing, China

Sunshine as culprit: It induces early spring physiological drought in dark coniferous (Pinus sibirica and Abies sibirica) alpine forest

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