Freezing Injury Characteristics of Evergreen Broad-Leaved Trees in Southern Urban Area, Korea

Jung, Su Young; Lee, Kwang Soo; Yoo, Byung Oh; Park, Yong Bae; Ju, Nam Gyu; Kim, Hyung‐Ho; Park, Joon Hyung

doi:10.14578/jkfs.2014.103.4.528

Cited by 4 publications

(3 citation statements)

References 5 publications

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“…Urban green spaces are becoming increasingly important due to their positive effects such as reduced air pollution, landscape functions, noise reduction, and heat island mitigation. Various woody and herbaceous plants are used to create urban green spaces and are the main materials for urban greening [13]. Among them, broad-leaved evergreen trees in warm temperate zones are moving northward, due to climate change.…”

Section: Introductionmentioning

confidence: 99%

Particulate Matter Removal Ability of Ten Evergreen Trees Planted in Korea Urban Greening

Jin

Yoon

Bae

et al. 2021

Forests

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Broad-leaved evergreen trees create urban forests for mitigation of climate warming and adsorption of particulate matter (PM). This study was performed to identify the species suitable for urban greening by examining the adsorption capacity of the evergreen species in urban areas in Korea, the adsorption points and the elemental composition of PM in the adsorbed tree. Leaf sampling was carried out four times (period of seven months from October 2017 to May 2018) and used after drying (period 28 to 37 days). Particulate matter (PM) was classified and measured according to size PM2.5 (0.2–2.5 μm), PM10 (2.5–10 μm), PM100 (10–100 μm). The total amount of PM adsorbed on the leaf surface was highest in Pinus densiflora (24.6 μg∙cm−2), followed by Quercus salicina (47.4 μg∙cm−2). The composition of PM adsorbed by P. densiflora is 4.0% PM2.5, 39.5% PM10 and 56.5% PM100, while those adsorbed by Q. salicina are evergreen at 25.7% PM2.5, 27.4% PM10 and 46.9% PM100. When the amount of PM adsorbed on the leaf was calculated by LAI, the species that adsorbed PM the most was P. densiflora, followed by Q. salicina, followed by Q. salicina in the wax layer, then P. densiflora. As a result of this study, the amount of PM adsorbed per unit area of leaves, and the amount of PM calculated by LAI, showed a simpler pattern. The hardwoods had a high adsorption rate of PM2.5. The adsorption ratio of ultra-fine PM2.5 by evergreen broad-leaved trees was greater than that of coniferous trees. Therefore, broad-leaved evergreens such as Q. salicina are considered very suitable as species for adsorbing PM in the city. PM2.5 has been shown to be adsorbed through the pores and leaves of trees, indicating that the plant plays an important role in alleviating PM in the atmosphere. As a result of analyzing the elemental components of PM accumulated on leaf leaves by scanning electron microscopy (SEM)/ energy dispersive x-ray spectroscopy (EDXS) analysis, it was composed of O, C, Si, and N, and was found to be mainly generated by human activities around the road. The results of this study provide basic data regarding the selection of evergreen species that can effectively remove aerial PM. It also highlights the importance of evergreen plants for managing PM pollution during the winter and provides insights into planning additional green infrastructure to improve urban air quality.

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Section: Introductionmentioning

confidence: 99%

Particulate Matter Removal Ability of Ten Evergreen Trees Planted in Korea Urban Greening

Jin

Yoon

Bae

et al. 2021

Forests

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“…Recently, as interest in warm-temperate tree species has increased due to climate change, various studies have been conducted on QGT, which has relatively high cold resistance compared to other warm-temperate broadleaf evergreen species (Jung et al, 2014). Park (2007) Conversely, experimental studies are in progress to explore the stages of reforestation and the tending of young growth in planted forests.…”

Section: Introductionmentioning

confidence: 99%

Development of Diameter Growth Models by Thinning Intensity of Planted Quercus glauca Thunb. Stands

Jung

Lee²,

Kim

2021

J. People Plants Environ

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Background and objective: This study was conducted to develop diameter growth models for thinned Quercus glauca Thunb. (QGT) stands to inform production goals for treatment and provide the information necessary for the systematic management of this stands.Methods: This study was conducted on QGT stands, of which initial thinning was completed in 2013 to develop a treatment system. To analyze the tree growth and trait response for each thinning treatment, forestry surveys were conducted in 2014 and 2021, and a one-way analysis of variance (ANOVA) was executed. In addition, non-linear least squares regression of the PROC NLIN procedure was used to develop an optimal diameter growth model.Results: Based on growth and trait analyses, the height and height-to-diameter (H/D) ratio were not different according to treatment plot (p > .05). For the diameter of basal height (DBH), the heavy thinning (HT) treatment plot was significantly larger than the control plot (p < .05). As a result of the development of diameter growth models by treatment plot, the mean squared error (MSE) of the Gompertz polymorphic equation (control: 2.2381, light thinning: 0.8478, and heavy thinning: 0.8679) was the lowest in all treatment plots, and the Shapiro-Wilk statistic was found to follow a normal distribution (p > .95), so it was selected as an equation fit for the diameter growth model.Conclusion: The findings of this study provide basic data for the systematic management of Quercus glauca Thunb. stands. It is necessary to construct permanent sample plots (PSP) that consider stand status, location conditions, and climatic environments.

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“…Atmospheric CO 2 is inextricably linked to plant growth and thus directly affects the growth of the trees and forests (Sampson, 2014). As a result of recent global warming and climate change, evergreen tree species in warm temperate forest zones expanded their distribution extents (Jung et al, 2014). In this aspect, Japanese cedar (Cryptomeria japonica) is also one of those in Korea, and is likely to be recognized as more useful forest resources corresponding to climate change in warm temperate forest areas.…”

Section: Introductionmentioning

confidence: 99%

Study on Red and Black Heartwood Properties of Cryptomeria Japonica in Southern Region of Korea

Won¹,

Jung²,

Yoo³

et al. 2017

Journal of the Korean Wood Science and Technology

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The heartwood (HW) of Japanese cedar (Cryptomeria japonica) has usually a reddish color. But some trees have black-colored heartwood (BHW). BHW of Japanese cedar has a low commercial value because of the appearance. Therefore, in this study, a comparative analysis was conducted to evaluate the differences in the physical, mechanical, and inorganic element properties, and decay resistance of red-colored heartwood tree (RHW) and BHW. The physical properties showed significant difference between sapwood (SW) and HW, but there was no significant difference between RHW and BHW. From the results of mechanical properties, no significant difference was recognized in SW of RHW, HW of RHW, SW of BHW, and HW of BHW. There were decay resistance differences between RHW and BHW in HW, and between HW and SW in both RHW and BHW, respectively. The magnesium (Mg), potassium (K), and calcium (Ca) contents had significant differences between SW and HW in both RHW and BHW. In this present study, the decay resistances and the contents of Mg and K were higher in HW than in SW both for RHW and BHW, while these measurements were lower in RHW than in BHW. Therefore, BHW was considered to be worthy as a high-quality material as RHW.

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Freezing Injury Characteristics of Evergreen Broad-Leaved Trees in Southern Urban Area, Korea

Cited by 4 publications

References 5 publications

Particulate Matter Removal Ability of Ten Evergreen Trees Planted in Korea Urban Greening

Particulate Matter Removal Ability of Ten Evergreen Trees Planted in Korea Urban Greening

Development of Diameter Growth Models by Thinning Intensity of Planted Quercus glauca Thunb. Stands

Study on Red and Black Heartwood Properties of Cryptomeria Japonica in Southern Region of Korea

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