Tree growth, cambial phenology, and wood anatomy of limber pine at a Great Basin (USA) mountain observatory

Ziaco, Emanuele; Biondi, Franco

doi:10.1007/s00468-016-1384-7

Cited by 36 publications

(32 citation statements)

References 94 publications

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“…The elevational gradients of the decrease in the duration and temperatures of vegetative season seem to yield a significant decrease in the wood cell production with elevation, due to a shorter period of cambial activity, and due to the positive relationship between temperature and cell division rate in the cambial zone (Vaganov et al 2006;Begum et al 2013;Rossi et al 2014;Jiang et al 2015;Kraus et al 2016;Ziaco and Biondi 2016). Accordingly, TRW decreases for trees of all ages ( Figure 5).…”

Section: Growth Patterns Of Sprucementioning

confidence: 98%

Divergent growth trends and climatic response of Picea obovata along elevational gradient in Western Sayan mountains, Siberia

et al. 2018

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In mountain ecosystems, plants are sensitive to climate changes, and an entire range of species distribution can be observed in a small area. Therefore, mountains are of great interest for climate-growth relationship analysis. In this study, the Siberian spruce"s (Picea obovata Ledeb.) radial growth and its climatic response were investigated in the Western Sayan Mountains, near the Sayano-Shushenskoe Reservoir. Sampling was performed at three sites along an elevational gradient: at the lower border of the species range, in the middle, and at the treeline. Divergence of growth trends between individual trees was observed at each site, with microsite landscape-soil conditions as the most probable driver of this phenomenon. Cluster analysis of individual treering width series based on inter-serial correlation was carried out, resulting in two subset chronologies being developed for each site. These chronologies appear to have substantial differences in their climatic responses, mainly during the cold season. This response was not constant due to regional climatic change and the local influence of the nearby Sayano-Shushenskoe Reservoir. The main response of spruce to growing season conditions has a typical elevational pattern expected in mountains: impact of temperature shifts with elevation from positive to negative, and impact of precipitation shifts in the opposite direction. Chronologies of trees, growing under more severe micro-conditions, are very sensitive to temperature during September-April and to precipitation during October-December, and they record both inter-annual and long-term climatic variation. Consequently, it would be interesting to test if they indicate the Siberian High anticyclone, which is the main driver of these climatic factors.

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Section: Growth Patterns Of Sprucementioning

confidence: 98%

Divergent growth trends and climatic response of Picea obovata along elevational gradient in Western Sayan mountains, Siberia

et al. 2018

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“…Both extended growing seasons and enhanced productivity under warmer conditions are questionable in arid and semiarid, that is, water‐limited, forest ecosystems where a prolonged growing season may expose trees to higher levels of drought stress (Way & Oren, ). For instance, narrow tree rings associated with earlier cessation of cambial division were observed in Pinus flexilis from a semiarid montane site in the south‐central Great basin of North America in response to water limitation during the growing season when compared to high‐elevation stands less exposed to summer drought stress (Ziaco & Biondi, ). Evaluating the climatic drivers of xylogenesis for dominant species subject to periodical water stress, and assessing their plasticity at the cellular level, is crucial to delineate reliable predictions on seasonal forest phenology (Camarero, Olano, & Parras, ; de Luis, Gričar, Čufar, & Raventós, ; Linares, Camarero, & Carreira, ; Vieira, Rossi, Campelo, Freitas, & Nabais, ).…”

Section: Introductionmentioning

confidence: 99%

Moisture‐driven xylogenesis in Pinus ponderosa from a Mojave Desert mountain reveals high phenological plasticity

Ziaco

Truettner

Biondi

et al. 2018

Plant Cell & Environment

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Future seasonal dynamics of wood formation in hyperarid environments are still unclear. Although temperature-driven extension of the growing season and increased forest productivity are expected for boreal and temperate biomes under global warming, a similar trend remains questionable in water-limited regions. We monitored cambial activity in a montane stand of ponderosa pine (Pinus ponderosa) from the Mojave Desert for 2 consecutive years (2015-2016) showing opposite-sign anomalies between warm- and cold-season precipitation. After the wet winter/spring of 2016, xylogenesis started 2 months earlier compared to 2015, characterized by abundant monsoonal (July-August) rainfall and hyperarid spring. Tree size did not influence the onset and ending of wood formation, highlighting a predominant climatic control over xylem phenological processes. Moisture conditions in the previous month, in particular soil water content and dew point, were the main drivers of cambial phenology. Latewood formation started roughly at the same time in both years; however, monsoonal precipitation triggered the formation of more false rings and density fluctuations in 2015. Because of uncertainties in future precipitation patterns simulated by global change models for the Southwestern United States, the dependency of P. ponderosa on seasonal moisture implies a greater conservation challenge than for species that respond mostly to temperature conditions.

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“…Despite this, intra-annual stem growth dynamics and its response to regional climate are still very scarce in subtropical China, among which most studies focused on a single site with limited observation years [21][22][23]. On the other hand, it has been documented that studying seasonal stem growth dynamics over an elevational gradient, in which warm and dry conditions at the lower elevation served as a natural analog to simulate future climate, could shed more light on the mechanisms of tree growth under future climate change scenarios [24,25].…”

Section: Introductionmentioning

confidence: 99%

Seasonal Drought Effects on Intra-Annual Stem Growth of Taiwan Pine along an Elevational Gradient in Subtropical China

Liu

Wang

Zhao

2019

Forests

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Knowledge of intra-annual stem growth dynamics across environmental gradients is important for advancing our ability to understand the adaptability and vulnerability of subtropical tree species to future climate change. To assess the effects of seasonal drought on intra-annual stem growth, stem radial variation of Taiwan pine (Pinus taiwanensis Hayata) was monitored with band dendrometers for two years along an elevation transect from 921 to 1402 m in the Lushan Mountains, a transect that covers the contrasting climatic growing conditions for Taiwan pine in southeastern China. We found that the onset of stem growth was nearly synchronous across the transect, in early April 2017 and in late March 2018, whereas large elevational differences were observed for the end of the growing season, which was much earlier at lower elevations. Tree stems frequently rehydrated during the dry growing seasons at the two higher elevations, suggesting that seasonal drought had minor influence on the offset of high-elevation stem growth. A substantial and continuous tree water deficit of low-elevation Taiwan pine was detected during dry seasons, leading to an early growth cessation in late July in both years. Tree water status (reflected by tree water deficit) revealed a higher sensitivity to precipitation and soil water content across wet- and dry-seasons at the lowest elevation than at high elevations, indicating that low-elevation stem radial growth was highly dependent on moisture variables over the whole growing season. Due to the influences of seasonal drought on growth cessation and rates, Taiwan pine produced a rather narrow annual growth at the lowest site, whereas high-elevation Taiwan pine could benefit from the optimal wet-season environmental conditions and the reactivation of cambial activity during dry seasons. Our findings suggest that the more frequent and intensive drought episodes in the future will reduce tree growth of Taiwan pine at the dry edge, probably resulting in upward shifting of the optimal elevation for Taiwan pine in subtropical China.

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Tree growth, cambial phenology, and wood anatomy of limber pine at a Great Basin (USA) mountain observatory

Cited by 36 publications

References 94 publications

Divergent growth trends and climatic response of Picea obovata along elevational gradient in Western Sayan mountains, Siberia

Divergent growth trends and climatic response of Picea obovata along elevational gradient in Western Sayan mountains, Siberia

Moisture‐driven xylogenesis in Pinus ponderosa from a Mojave Desert mountain reveals high phenological plasticity

Seasonal Drought Effects on Intra-Annual Stem Growth of Taiwan Pine along an Elevational Gradient in Subtropical China

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