Changes in Chlorophyll Contents and Net Photosynthesis Rate of 3-year-old Quercus variabilis Seedlings by Experimental Warming

이선정,; 한새롬,; 윤태경,; 조우용,; 한승현,; 정예지,; 손요환,

doi:10.14578/jkfs.2013.102.1.156

Cited by 4 publications

(2 citation statements)

References 22 publications

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“…Moreover, the chlorophyll content increased as the concentration of pigment needed for photosynthesis rose due to the increased temperature (Yin et al, 2008). In a previous study of Q. variabilis, the total chlorophyll content increased due to the early development of leaves as the leafing in the warming treatment plots preceded the control plots (Jo et al, 2011;Lee et al, 2013). It is suggested that the total chlorophyll content increased in this study for the same reason.…”

Section: Net Photosynthetic Rate and Chlorophyll Contentsupporting

confidence: 53%

Short-term effects of warming treatment and precipitation manipulation on the ecophysiological responses of Pinus densiflora seedlings

Yun¹,

Han²,

Han³

et al. 2016

Turk J Agric For

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The aim of this study was to investigate the short-term effects of warming treatment and precipitation manipulation on the growth, photosynthetic rate, and chlorophyll content of Pinus densiflora seedlings based on a climate change scenario in Korea. Twoyear-old P. densiflora seedlings were planted in a nursery in April 2013. The air temperature of warmed plots (W) was set to increase by 3 °C compared to control plots (C) using an infrared heater in May 2013. The three precipitation manipulations consisted of decreased precipitation using transparent panels (-30%; P-), increased precipitation using pumps and drip irrigation (+30%; P +), and a control (0%; P 0). Root collar diameter and seedling height of P. densiflora were measured in April and October 2013. Net photosynthetic rate and total chlorophyll contents were measured from June to October 2013. Warming treatment increased the growth of root collar diameter, and the interaction effect of the warming treatment and precipitation manipulation on it was also significant. In contrast, no significant effects were found for the growth of seedling height. These results demonstrate that warming treatment might affect the growth of root collar diameter and seedling height differently. It was also found that WPtreatment decreased net photosynthetic rates. This pattern might be due to the soil moisture availability, as soil moisture content was lowest in the WPtreatment and net photosynthetic rate was elevated with increasing soil moisture content. Meanwhile, warming treatment increased the total chlorophyll content. The results suggest that chlorophyll synthesis was promoted by a temperature increase in the leaves. The current study, which simulated a climate change environment in an open field, provides important information for the prediction of the ecophysiological effects of changes in temperature and precipitation on P. densiflora seedlings in Korea.

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Section: Net Photosynthetic Rate and Chlorophyll Contentsupporting

confidence: 53%

Short-term effects of warming treatment and precipitation manipulation on the ecophysiological responses of Pinus densiflora seedlings

Yun¹,

Han²,

Han³

et al. 2016

Turk J Agric For

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“…et al, 1992). Barber et al, 2000;Bronson et al, 2009;Kellomäki and Wang, 2001 (Kjellström, 2004;Reich and Oleksyn, 2008 Lee et al, 2012;Lee et al, 2013). Gunderson et al, 2010;Zhou et al, 2007) Table 3).…”

Section: 서 론unclassified

Growth and Physiological Characteristics of Pinus densiflora Seedlings in Response to Open-field Experimental Warming using the Infrared Lamp

Lee¹,

Han²,

Yoon³

et al. 2013

Journal of Korean Forestry Society

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요 약: 기후변화는 수목의 생장과 생리적 특성에 영향을 미칠 것으로 예상되고 있다. 본 연구는 인위적 온난화에 의한 소나무 묘목의 생장과 생리적 반응을 알아보기 위한 목적으로 수행되었다. 이를 위하여 2010년 4월 고려대학 교 구내 묘포장에 1년생 소나무 묘목을 식재하고 당해 11월부터 적외선등을 이용하여 3 o C 온도를 증가시키는 온난 화 처리를 하였으며, 2011년부터 3월부터 2013년 3월까지 묘고 및 근원경, 지상부 및 지하부 생물량, 잎의 엽록소 함량 및 질소 농도 등을 측정하였다. 묘고와 근원경의 경우 2012년 6월에 측정한 근원경을 제외하고 온난화 처리구 와 대조구간 유의한 차이를 보이지 않았다. 그러나 2013년 묘목 개체당 잎의 생물량은 온난화 처리구(23.94±2.10 g) 에서 대조구(26.08±1.72 g)보다 낮게 나타났으며, 줄기와 뿌리의 생물량 비율(S/R율)은 2013년에 온난화 처리구(1.09 ±0.07)에서 대조구(1.31±0.10)보다 낮게 나타났다. 한편 잎의 엽록소 함량 및 질소 농도는 2011년 잎의 질소 농도 를 제외하고 온난화 처리와 대조구간 통계적으로 유의한 차이를 보이지 않았다. 그리고 잎의 C/N율은 2012년에 온 난화 처리구에서 대조구보다 높게 나타났다. 온난화 처리에 따른 소나무 묘목의 일부 생장 및 S/R율 감소는 온도 및 수분 스트레스와 관련이 있을 것으로 추정된다. 본 연구결과 향후 온난화가 지속되면 국내 소나무는 온도 및 수분 스트레스로 인해 지하부로의 탄소 분배를 확대시킬 가능성이 있는 것으로 사료된다.Abstract: Climate change will affect the physiological traits and growth of forest trees. This study was conducted to investigate the effects of an experimental warming on growth and physiological characteristics of Pinus densiflora S. et Z. seedlings. One-year-old P. densiflora seedlings were planted in control and warmed plots in April 2010. The air temperature of warmed plots was increased by 3 o C using infrared lamps from November 2010. We measured shoot height, root collar diameter, above and below ground biomass, chlorophyll contents and leaf nitrogen concentration from March 2011 to March 2013. Seedling height and root collar diameter showed no significant difference between warmed and control plots except for root collar diameter measured in June 2012. Seedling leaf biomass was lower in the warmed (23.94±2.10 g) than in the control (26.08±1.72 g) plots in 2013. Shoot to root ratio (S/R ratio) was lower in the warmed (1.09±0.07) than in the control (1.31±0.10) plots in 2013. Leaf nitrogen concentrations and chlorophyll contents were not significantly different between warmed and control plots except for leaf nitrogen concentration in 2011. Leaf C/N ratio was increased in 2012 under the warming treatment. Low growth and S/R ratio in warmed plots might be related to the higher temperature and water stress. In the future, the below-ground carbon allocation of P. densiflora might be increased by global warming due to temperature and water stress.

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Short-term physiological responses of Larix kaempferi seedlings to spring warming and drought manipulation

Kim

et al. 2021

Forest Science and Technology

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Changes in Chlorophyll Contents and Net Photosynthesis Rate of 3-year-old Quercus variabilis Seedlings by Experimental Warming

Cited by 4 publications

References 22 publications

Short-term effects of warming treatment and precipitation manipulation on the ecophysiological responses of Pinus densiflora seedlings

Short-term effects of warming treatment and precipitation manipulation on the ecophysiological responses of Pinus densiflora seedlings

Growth and Physiological Characteristics of Pinus densiflora Seedlings in Response to Open-field Experimental Warming using the Infrared Lamp

Short-term physiological responses of Larix kaempferi seedlings to spring warming and drought manipulation

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