Within- and between-site variations in leaf longevity in hinoki cypress (<i>Chamaecyparis obtusa</i>) plantations in southwestern Japan

Miyamoto, Kazuki; Okuda, Shiro; Inagaki, Yoshiyuki; Noguchi, Mahoko; Itou, Takeharu

doi:10.1007/s10310-012-0346-1

Cited by 21 publications

(7 citation statements)

References 41 publications

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“…This value agrees satisfactorily with those generally reported in 30/57 mature Japanese cedar and cypress forests (e.g. Haibara & Aiba, 1982;Katsuno et al, 1984;Katigiri et al, 1990;Nakane, 1995;Kaneko et al, 1997;Miura, 2000;Ichikawa et al, 2003a,b;Shutou & Nakane, 2004;Yamashita et al, 2004;Yoshida & Hijii, 2006;Inagaki et al, 2010aInagaki et al, ,b, 2012Miyamoto et al, 2013;Wang et al, 2016). Among the dozens of sites investigated by these authors, the annual litterfall varies in the range 0.53±0.15 kg d.w. m-2 y-1 (mean±SD).…”

Section: Generic Activity Concentrations In Tree Végétationsupporting

confidence: 91%

Meta-analysis of radiocesium contamination data in Japanese cedar and cypress forests over the period 2011–2017

Gonze

Calmon

Hurtevent

et al. 2021

Science of The Total Environment

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Section: Generic Activity Concentrations In Tree Végétationsupporting

confidence: 91%

Meta-analysis of radiocesium contamination data in Japanese cedar and cypress forests over the period 2011–2017

Gonze

Calmon

Hurtevent

et al. 2021

Science of The Total Environment

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“…Endl. (Miyamoto, Inagaki, Noguchi, & Itou, ) and not significant in 23 evergreen rainforest species (Reich, Uhl, Walters, Prugh, & Ellsworth, ).…”

Section: Introductionmentioning

confidence: 90%

Variations in leaf economics spectrum traits for an evergreen coniferous species: Tree size dominates over environment factors

Liu

Hikosaka

et al. 2020

Functional Ecology

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1. Many leaf traits strongly vary with tree size and environmental factors, but the importance of these factors to intraspecific variations of leaf traits in forest trees has rarely been simultaneously evaluated.2. We measured needle longevity and specific leaf area (SLA) and nitrogen (N) content of every needle age (0-to 4-year old) for 65 individuals with 0.3-100 cm diameter at breast height (DBH) for an evergreen coniferous species, Pinus koraiensis Sieb. et Zucc., in Northeast China. We simultaneously evaluated the effects of tree size (DBH or tree height) and environment factors (light intensity, soil N content and water availability) on the needle longevity, SLA, foliage N content as well as the slopes of regressions of SLA and foliage N content against needle age.3. All of the studied leaf traits and slopes of regressions of SLA and foliage N content against needle age were significantly related to tree size. Tree height had a greater impact on SLA and area-based leaf N content (N area ), whereas DBH was more important for needle longevity and mass-based leaf N content (N mass ). The environment variables, light intensity, soil N content and water availability, were rather minor factors for trait variations compared with tree size. Significant influence of light intensity was found only on needle longevity, and soil N and water availability had no effects on the leaf traits.4. Our study clearly showed that tree size is an important driver of intraspecific variations in the key leaf traits of P. koraiensis in a natural forest. We also emphasize the importance of DBH or tree height varies depending on leaf traits, suggesting various mechanisms of size effects on the intraspecific variations in leaf traits. We suggest that ecological significance of leaf trait variations needs reconsideration incorporating tree size effect.

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“…In spring (April to June), Japanese cypress trees expand their leaves, and the proportion of these new leaves is estimated approximately to be 18 % at the study site from the fluctuation of LAI (4.5-5.5). The ratio of annual leaf litter fall to leaf mass is reported from 15 to 35 % for eight different sites in Japan (Miyamoto et al 2012). This might be one of the reasons for the smaller g c in spring.…”

Section: Resultsmentioning

confidence: 92%

“…Thus, this finding appears to be unique to the study site. Japanese cypress forests have longer life cycle of leaves (from 3.9 to 6.8 years; Miyamoto et al 2012) comparing with deciduous and evergreen broadleaved forests in temperate region. Longer life cycle of leaves obscured the effect of LAI on V CMAX .…”

Section: Phenology In Ecosystem Respirationmentioning

confidence: 99%

Determination of the gas exchange phenology in an evergreen coniferous forest from 7 years of eddy covariance flux data using an extended big‐leaf analysis

Kosugi

Takanashi

Ueyama

et al. 2013

Ecological Research

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We defined gas exchange phenology as the seasonality of the gas exchange characteristics of a forest canopy, and investigated how the gas exchange phenology could be directly detected from an eddy covariance (EC) dataset and its influence on the canopy fluxes within an evergreen Japanese cypress forest. For the detection of gas exchange phenology, we derived three bulk parameters of the extended big‐leaf model (Kosugi et al. ) inversely from EC flux data over a 7‐year period: surface conductance (gc), maximum rate of carboxylation of the “big leaf” (VCMAX), and intercellular CO2 concentration of the “big leaf” (CI). The relationship between gc and the vapor pressure deficit declined in winter and spring. The relationship between the daily ecosystem respiration and air temperature was greater in the spring than in the other seasons. The temperature dependence curve of VCMAX decreased substantially in the winter and was different from that of an evergreen broadleaved forest. A decrease in CI was occasionally coupled with the decrease in canopy gross primary production during April and August, indicating that stomatal closure was responsible for a decline in canopy photosynthesis. Gas exchange phenology should be quantified when understanding the determining factors of the seasonality of canopy fluxes at evergreen coniferous forests.

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Within- and between-site variations in leaf longevity in hinoki cypress (Chamaecyparis obtusa) plantations in southwestern Japan

Cited by 21 publications

References 41 publications

Meta-analysis of radiocesium contamination data in Japanese cedar and cypress forests over the period 2011–2017

Meta-analysis of radiocesium contamination data in Japanese cedar and cypress forests over the period 2011–2017

Variations in leaf economics spectrum traits for an evergreen coniferous species: Tree size dominates over environment factors

Determination of the gas exchange phenology in an evergreen coniferous forest from 7 years of eddy covariance flux data using an extended big‐leaf analysis

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