Comparison of climatic effects on radial growth of evergreen broad‐leaved trees at their northern distribution limit and co‐dominating deciduous broad‐leaved trees and evergreen conifers

Takahashi, Koichi; Okuhara, Isao

doi:10.1007/s11284-011-0879-3

Cited by 18 publications

(13 citation statements)

References 28 publications

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“…Individual trees were treated as a random effect, and the ADGR was calculated for 2002-2007, 2007-2012, 2012-2015) for each tree (Sakai, 1978). Takahashi and Okuhara (2012) showed that growth of evergreen hardwoods is usually restricted by winter cold in the same site as this study. The threshold temperature for tolerance to freezing is between −7°C and −18°C for evergreen hardwoods that distribute up to central Japan (Sakai, 1978).…”

Section: Species Number Of Evergreen Hardwoodssupporting

confidence: 64%

“…Species more tolerant to freezing can distribute in colder areas, and generally tolerance to freezing is greater for deciduous hardwoods than evergreen hardwoods (Sakai, ). Takahashi and Okuhara () showed that growth of evergreen hardwoods is usually restricted by winter cold in the same site as this study. The threshold temperature for tolerance to freezing is between −7°C and −18°C for evergreen hardwoods that distribute up to central Japan (Sakai, ).…”

Section: Discussionsupporting

confidence: 53%

“…The WI was 94.6°C months at the study site, and the CI was −11.9°C months. Thus, the thermal condition of the study site is a climate range limit for evergreen hardwoods (Takahashi & Okuhara, ).…”

Section: Methodsmentioning

confidence: 99%

“…Thus, the thermal condition of the study site is a climate range limit for evergreen hardwoods (Takahashi & Okuhara, 2012).…”

Section: Relationships Between Plant Distribution and Climate Are Oftenmentioning

confidence: 99%

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Stand dynamics and competition in a mixed forest at the northern distribution limit of evergreen hardwood species

Takahashi

Ikeyama

Okuhara

2018

Ecology and Evolution

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Tree species of three growth forms (evergreen conifers, deciduous hardwoods, and evergreen hardwoods) codominate at the northern distribution limit of evergreen hardwoods in central Japan. This study examined the stand dynamics and competition during 13 years at a single plot to reveal how three growth forms codominate at the ecotone. Species were characterized as large DBH and low tree density for evergreen conifers, and conversely for evergreen hardwoods. Total basal area increased during the examined period, accompanied with the reduction in tree density (i.e., mortality exceeded the recruitment rate). Mortality increased with time especially for small trees of deciduous hardwoods. The effect of competition among the three growth forms on tree growth was not detected. Species were classified into two axes. Ingrowth and recruitment rates of large evergreen conifers were lower than those of small evergreen hardwoods. The population growth rate was lower in species with greater mortality within each growth form. Deciduous hardwoods showed the highest mortality and lowest population growth rates among the three growth forms. Although the tree‐ring analysis revealed that disturbances occurred to some extent, the current disturbance regime would not trigger the regeneration of deciduous hardwoods. This study suggests that negative relations of maximum DBH with ingrowth and recruitment rates contribute to codominance of evergreen conifers and evergreen hardwoods, and more frequent or larger disturbances than at present are necessary for regeneration of deciduous hardwoods.

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Section: Species Number Of Evergreen Hardwoodssupporting

confidence: 64%

Section: Discussionsupporting

confidence: 53%

Section: Methodsmentioning

confidence: 99%

“…Thus, the thermal condition of the study site is a climate range limit for evergreen hardwoods (Takahashi & Okuhara, 2012).…”

Section: Relationships Between Plant Distribution and Climate Are Oftenmentioning

confidence: 99%

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Stand dynamics and competition in a mixed forest at the northern distribution limit of evergreen hardwood species

Takahashi

Ikeyama

Okuhara

2018

Ecology and Evolution

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“…Particularly in temperate and cold climates, air temperature is the most important environmental variable along elevational gradients [18]. Previous studies have revealed that a shorter growing season [19] and declining radial growth are general trends as altitude/latitude increases [20,21]. However, whether the shorter duration of xylogenesis is due to later onset, or to earlier cessation remains unclear.…”

Section: Introductionmentioning

confidence: 99%

Intra-Annual Xylem Growth of Larix principis-rupprechtii at Its Upper and Lower Distribution Limits on the Luyashan Mountain in North-Central China

Jiang

Zhang

Guo

et al. 2015

Forests

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Altitude-related climatic factors, especially temperature, are important factors that affect tree growth in mountain forest ecosystems. The aims of this study were to estimate the intra-annual radial growth differences of Larix principis-rupprechtii (L. principis-rupprechtii) between its upper and lower distribution limits, at 2740 and 2040 m a.s.l, respectively. Dynamics of xylem growth were observed by collecting microcore samples weekly during the 2011 growth season. The result indicated that different strategies were adopted at the two selected sites. Trees at the upper distribution limit adopted an "intensive strategy" with higher maximum growth rates (0.69 cell· day −1 ) within a shorter duration of 95 days, producing 21 new tracheids. By contrast, trees at the lower distribution limit exhibited an "extensive strategy" with lower maximum growth rates (0.53 cell· day −1 ) over a longer duration of 135 days, producing 50 tracheids. The soil temperature was probably the main factor limiting the onset of cambial activity for L. principis-rupprechtii, its daily mean thresholds for onset were 0 °C and 1.4 °C at the upper and lower distribution limits, respectively. These results indicate that OPEN ACCESSForests 2015, 6 3810 L. principis-rupprechtii is able to adjust its xylem growth according to environmental conditions.

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Seasonal changes in photosynthesis and starch content in Japanese fir (Abies firma Sieb. et Zucc.) saplings under different levels of irradiance

Tanaka

Yoneda

Ninomiya

2017

Trees

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Comparison of climatic effects on radial growth of evergreen broad‐leaved trees at their northern distribution limit and co‐dominating deciduous broad‐leaved trees and evergreen conifers

Abstract: Using dendrochronological techniques,

Cited by 18 publications

References 28 publications

Stand dynamics and competition in a mixed forest at the northern distribution limit of evergreen hardwood species

Stand dynamics and competition in a mixed forest at the northern distribution limit of evergreen hardwood species

Intra-Annual Xylem Growth of Larix principis-rupprechtii at Its Upper and Lower Distribution Limits on the Luyashan Mountain in North-Central China

Seasonal changes in photosynthesis and starch content in Japanese fir (Abies firma Sieb. et Zucc.) saplings under different levels of irradiance

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