An index to evaluate the amount of the solar radiation for a surface with eight directions

Koyamatsu, Yuki; Shiota, Atushi; Mitani, Yasunori; Qudaih, Yaser Soliman; Fuji, Kiyotaka

doi:10.12720/sgce.4.3.241-246

Cited by 3 publications

(5 citation statements)

References 4 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Warmer temperatures in south-facing than in north-facing cavities have also been reported previously (Paclik & Weidinger, 2007;Schwartz et al, 2020;Wiebe, 2001). South-facing entrances receive more solar radiation (Koyamatsu et al, 2015) and may therefore warm up faster. That higher moisture was observed with decreasing angle of entrance (i.e., directing more upwards) was expected due to the higher probability of rainwater entering these hollows.…”

Section: Importance Of Tree Characteristics For Microclimatesupporting

confidence: 76%

See 1 more Smart Citation

Microclimate in hollow trees and how it affects an inhabiting beetle species,Osmoderma eremita

Lindman

Öckinger

Ranius

2022

Ecological Entomology

View full text Add to dashboard Cite

1. Studies of species' responses to microclimatic conditions have increased our understanding of their habitat requirements and possible responses to climate warming. However, little is known about the role of microclimate for insects inhabiting hollow trees.2. We explored the relationship between tree characteristics and microclimate, and analysed how the microclimate in tree-hollows affects the occurrence and body size of an endangered beetle species, Osmoderma eremita.3. We placed temperature data-loggers in wood mould (= loose material in tree-hollows) and surveyed O. eremita in 47 hollows in oak pastures in south-eastern Sweden. We found that tree characteristics previously known to be associated with occurrence of beetle species confined to tree-hollows (larger diameters, more wood mould, entrances higher up, and not directed upwards) tend to decrease moisture and moisture variation, while their effects on temperature and temperature fluctuations differ during different seasons. This indicates that microclimatic conditions are important for beetles in hollow trees, and many specialised species seem to avoid conditions that are too moist. 4. O. eremita occurred more frequently in trees with a warmer and more stable microclimate, while adult body size decreased with a warmer microclimate. A positive effect of a warmer microclimate was expected, since the study was done near the northern margin of the species' range. 5. O. eremita is confined to living in hollow trees, which may be due to the microclimate there being more stable in comparison to both the ambient climate and the microclimate in standing and downed dead wood.

show abstract

Section: Importance Of Tree Characteristics For Microclimatesupporting

confidence: 76%

“…Warmer temperatures in south‐facing than in north‐facing cavities have also been reported previously (Paclik & Weidinger, 2007; Schwartz et al, 2020; Wiebe, 2001). South‐facing entrances receive more solar radiation (Koyamatsu et al, 2015) and may therefore warm up faster.…”

Section: Discussionmentioning

confidence: 99%

Microclimate in hollow trees and how it affects an inhabiting beetle species,Osmoderma eremita

Lindman

Öckinger

Ranius

2022

Ecological Entomology

View full text Add to dashboard Cite

show abstract

“…Southfacing facades, for instance, receive the most direct sunlight during the day, resulting in higher elevated temperatures and increased solar heat gain compared to other orientations. Conversely, the lowest solar radiation levels are typically found along the north-facing surface [37,38]. This discrepancy in solar exposure leads to pronounced variations in microclimatic conditions across different facade orientations, creating distinct ecological niches that could influence the colonisation and proliferation of fungi on the Biofinishcoated facade in this study.…”

Section: Discussionmentioning

confidence: 87%

Bioinspired Living Coating System for Wood Protection: Exploring Fungal Species on Wood Surfaces Coated with Biofinish during Its Service Life

Poohphajai,

Gubenšek,

Černoša

et al. 2024

Coatings

View full text Add to dashboard Cite

Biofinish is an innovative wood protection system inspired by biological processes. It enhances the hydrophobicity of wood through oil treatment, resulting in improved dimensional stability. Living cells of the fungus Aureobasidium pullulans effectively protect wood from deterioration caused by other decaying fungi. The melanin pigment produced by the fungus provides an appealing dark surface and additionally protects the wood substrate against UV radiation. The significant advantage of Biofinish is its remarkable self-healing ability, which distinguishes it from conventional wood protection methods. This research aimed to explore fungal species colonising surfaces exposed to natural weathering and assess the survival of A. pullulans on wood surfaces coated with Biofinish during its in-service period. This study was performed on a facade composed of European larch wood (Larix decidua) treated with linseed oil and coated with Biofinish at the InnoRenew CoE building in Izola, Slovenia, following a 9-month exposure period. The majority of the detected species belonged to the genera Aureobasidium. The results indicated the survival and effective antagonistic action of A. pullulans, the living and active ingredient of the coating, against other wood-decaying fungi.

show abstract

“…Our findings indicate that direction is more significant than height because we always collected samples from the open-air side of the tree ( Figure 1 a–d). In the open-air, the total amount of sunlight may not differ by height, but the amount of sunlight per year clearly differs by direction [ 39 ]. Although direction significantly affected male strobilus weight, effects on pollen size were non-significant ( Figure 3 a).…”

Section: Resultsmentioning

confidence: 99%

“…Both datasets suggest that male strobili collected from the south side of trees tended to have approximately 1.5-fold greater male strobilus weight compared to those collected from the north side (1.475-fold for all data [ Figure 5 b], 1.458-fold for the Wogon-sugi subset [ Figure 5 c]). This is likely due to the amount of sunlight that male strobili are exposed to, as the south sides of trees in Japan receive more sunlight than the north sides [ 39 ]. It is known that the amount of solar radiation positively affects the male strobilus number [ 33 ].…”

Section: Resultsmentioning

confidence: 99%

Factors Affecting the Number of Pollen Grains per Male Strobilus in Japanese Cedar (Cryptomeria japonica)

Kakui

Tsurisaki

Shibata

et al. 2021

Plants

View full text Add to dashboard Cite

Japanese cedar (Cryptomeria japonica) is the most important timber species in Japan; however, its pollen is the primary cause of pollinosis in Japan. The total number of pollen grains produced by a single tree is determined by the number of male strobili (male flowers) and the number of pollen grains per male strobilus. While the number of male strobili is a visible and well-investigated trait, little is known about the number of pollen grains per male strobilus. We hypothesized that genetic and environmental factors affect the pollen number per male strobilus and explored the factors that affect pollen production and genetic variation among clones. We counted pollen numbers of 523 male strobili from 26 clones using a cell counter method that we recently developed. Piecewise Structural Equation Modeling (pSEM) revealed that the pollen number is mostly affected by genetic variation, male strobilus weight, and pollen size. Although we collected samples from locations with different environmental conditions, statistical modeling succeeded in predicting pollen numbers for different clones sampled from branches facing different directions. Comparison of predicted pollen numbers revealed that they varied >3-fold among the 26 clones. The determination of the factors affecting pollen number and a precise evaluation of genetic variation will contribute to breeding strategies to counter pollinosis. Furthermore, the combination of our efficient counting method and statistical modeling will provide a powerful tool not only for Japanese cedar but also for other plant species.

show abstract

An index to evaluate the amount of the solar radiation for a surface with eight directions

Cited by 3 publications

References 4 publications

Microclimate in hollow trees and how it affects an inhabiting beetle species,Osmoderma eremita

Microclimate in hollow trees and how it affects an inhabiting beetle species,Osmoderma eremita

Bioinspired Living Coating System for Wood Protection: Exploring Fungal Species on Wood Surfaces Coated with Biofinish during Its Service Life

Factors Affecting the Number of Pollen Grains per Male Strobilus in Japanese Cedar (Cryptomeria japonica)

Contact Info

Product

Resources

About