Plant trait database for <i>Cryptomeria japonica</i> and <i>Chamaecyparis obtusa</i> (SugiHinoki DB): Their physiology, morphology, anatomy and biochemistry

Osone, Yoko; Hirano, Shoji; Tanaka, Kenzö; Araki, Masami; Inoue, Yuta; Shichi, Koji; Toriyama, Jumpei; Yamashita, Naoyuki; Tsuruta, Kenji; Ishizuka, Shigehiro; Nagakura, Junko; Noguchi, Kyotaro; Ono, Kaori; Sakai, Hisao; Sakai, Yoshimi; Sano, Tetsuya; Shigenaga, Hidetoshi; Shinohara, Yoshinori; Yazaki, K.

doi:10.1111/1440-1703.12062

Cited by 17 publications

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“…We used a PTDB for Japanese cedar [ 15 ] for the parameterization of BBGC. The PTDB contains 16,410 data entries for 177 types of plant traits in Japanese cedar, which were collected through review of previous studies published since 1950.…”

Section: Methodsmentioning

confidence: 99%

“…We compared the trend in mean NPP with age between the model output and observations. We extracted observed NPP values from the PTDB [ 15 ] by filtering for a stand age of 31–50 years. We also analyzed the increases in biomass C with age and extracted wood volume data from the National Forest Inventory (NFI) for 2009–2013 by filtering for a stand age of 30–60 years without thinning history.…”

Section: Methodsmentioning

confidence: 99%

“…A plant trait database (PTDB) for Japanese cedar ( Cryptomeria japonica D . Don ), which is described later, and Japanese cypress ( Chamaecyparis obtusa ) was published recently [ 15 ]. We can refer to this PTDB for representative values of eco-physiological parameters to apply in process-based models, such as leaf nitrogen (N) content and specific leaf area (SLA).…”

Section: Introductionmentioning

confidence: 99%

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Estimating spatial variation in the effects of climate change on the net primary production of Japanese cedar plantations based on modeled carbon dynamics

et al. 2021

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Spatiotemporal prediction of the response of planted forests to a changing climate is increasingly important for the sustainable management of forest ecosystems. In this study, we present a methodology for estimating spatially varying productivity in a planted forest and changes in productivity with a changing climate in Japan, with a focus on Japanese cedar (Cryptomeria japonica D. Don) as a representative tree species of this region. The process-based model Biome-BGC was parameterized using a plant trait database for Japanese cedar and a Bayesian optimization scheme. To compare productivity under historical (1996–2000) and future (2096–2100) climatic conditions, the climate scenarios of two representative concentration pathways (i.e., RCP2.6 and RCP8.5) were used in five global climate models (GCMs) with approximately 1-km resolution. The seasonality of modeled fluxes, namely gross primary production, ecosystem respiration, net ecosystem exchange, and soil respiration, improved after two steps of parameterization. The estimated net primary production (NPP) of stands aged 36–40 years under the historical climatic conditions of the five GCMs was 0.77 ± 0.10 kgC m-2 year-1 (mean ± standard deviation), in accordance with the geographical distribution of forest NPP estimated in previous studies. Under the RCP2.6 and RCP8.5 scenarios, the mean NPP of the five GCMs increased by 0.04 ± 0.07 and 0.14 ± 0.11 kgC m-2 year-1, respectively. The increases in annual NPP were small in the southwestern region because of the decreases in summer NPP and the small increases in winter NPP under the RCP2.6 and RCP8.5 scenarios, respectively. Under the RCP2.6 scenario, Japanese cedar was at risk in the southwestern region, in accordance with previous studies, and monitoring and silvicultural practices should be modified accordingly.

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Section: Methodsmentioning

confidence: 99%

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Estimating spatial variation in the effects of climate change on the net primary production of Japanese cedar plantations based on modeled carbon dynamics

et al. 2021

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“…The sugi-hinoki database (SugiHinoki DB) consists of 24683 data entries for 177 traits of C . japonica and C. obtusa from 364 primary sources including journal papers, unpublished data and grey literature (e.g., reports, theses, articles) (Osone et al, 2020). The traits, grouped into 15 categories by their features (Table 1), are those that are widely agreed on as relevant to plant life-history strategies, vegetation modelling and global change responses (Grime, 1977; Díaz et al, 2004; Kleyer et al, 2008; Kattge et al, 2011).…”

Section: Methodsmentioning

confidence: 99%

“…Each data entry is accompanied by ancillary information about the location, environmental conditions, experimental treatment, measurement methods, status of measured individuals in the stand and the position of measured parts (e.g., upper or lower crown for photosynthetic measurements). Further details on the database are given in Osone et al (2020).…”

Section: Methodsmentioning

confidence: 99%

Verification of our empirical understanding of the physiology and ecology of two contrasting plantation species using a trait database

Osone

Hirano

Tanaka

2021

Preprint

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The effects of climate change on forest ecosystems take on increasing importance more than ever. Information on plant traits is a powerful predictor of ecosystem dynamics and functioning. We reviewed the major ecological traits, such as foliar gas exchange and nutrients, xylem morphology and drought tolerance, of Cryptomeria japonica and Chamaecyparis obtusa , which are major timber species in East Asia, especially in Japan, by using a recently developed functional trait database for both species (SugiHinokiDB). Empirically, C. obtusa has been planted under drier conditions, whereas C. japonica has been planted under wetter conditions. Our analyses revealed followings: The maximum photosynthetic rate, stomatal conductance, foliar nutrient content and soil-to-foliage hydraulic conductance were higher in C. japonica than in C. obtusa and were consistent with the higher growth rate of C. japonica. In contrast, the foliar turgor loss point and xylem pressure corresponding to 50% conductivity, which indicate drought tolerance, were lower in C. obtusa than in C. japonica and are consistent with the drier habitat of C. obtusa. Ontogenetic shifts were also observed; as the age and height of the trees increased, many foliar nutrient concentrations decreased, and the foliar minimum midday water potential and specific leaf area also decreased. This suggests that an ontogenetic reduction in photosynthesis occurred due to an increase in drought stress with tree height and age. However, among the Cupressaceae worldwide, the drought tolerance of C. japonica and C. obtusa is not as high. This may be related to the fact that the Japanese archipelago has historically not been subjected to strong dryness. The maximum photosynthetic rate showed intermediate values within the family, indicating that C. japonica and C. obtusa exhibit relatively high growth rates in the Cupressaceae family, and this is thought to be the reason why they have been selected as economically suitable timber species in Japanese forestry. This study clearly demonstrated that the plant trait database provides us a promising opportunity to verify out empirical knowledge of plantation management and helps us to understand effect of climate change on plantation forests by using trait-based modelling.

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Soil Carbon Stock Change Due to Afforestation in Japan by Paired-Sampling Method in an Equivalent Mass Basis

Ishizuka

Hirano

Kaneko

et al. 2020

Preprint

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To identify the soil carbon stock change from cropland to forest land in Japan, we compared the soil carbon stock of a cropland and that of an adjacent forest land at 23 different sites. With regard to a 0-30 cm depth basis, the soil carbon stock in the cropland was greater than that in the forest land; however, it was less than that in the forest land when an equivalent mass basis was used. In less than an elapsed time of 20 years after a land-use change, the soil carbon stock after afforestation was less than that in the adjacent cropland at the same sites. However, after an elapsed time of 20 years, the soil carbon stock in the afforested site exceeded that in the adjacent cropland at the same sites. The ratio of the soil carbon stock in forest land to that in the cropland was 1.10 on average, which is comparable with the previous mass-corrected paired-sampling studies. The ratio in the conifer-planted forest was significantly greater than that in the hardwood re-generated forest. Some of the previous reviews, including those of the non-mass-corrected data, were possibly biased, and more studies using the paired-sampling method with equivalent mass basis need to provide more general ratios in the future.

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Plant trait database for Cryptomeria japonica and Chamaecyparis obtusa (SugiHinoki DB): Their physiology, morphology, anatomy and biochemistry

Cited by 17 publications

References 0 publications

Estimating spatial variation in the effects of climate change on the net primary production of Japanese cedar plantations based on modeled carbon dynamics

Estimating spatial variation in the effects of climate change on the net primary production of Japanese cedar plantations based on modeled carbon dynamics

Verification of our empirical understanding of the physiology and ecology of two contrasting plantation species using a trait database

Soil Carbon Stock Change Due to Afforestation in Japan by Paired-Sampling Method in an Equivalent Mass Basis

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