[논문]기후변화 조건에서 수분구배 및 영양소 구배에 따른 굴참나무와 상수리나무 잎 형태적 특성의 생태지위 변화

박여빈; 김의주; 박재훈; 김윤서; 박지원; 이정민; 유영한

doi:10.13087/kosert.2024.27.2.43

기후변화 조건에서 수분구배 및 영양소 구배에 따른 굴참나무와 상수리나무 잎 형태적 특성의 생태지위 변화
Variations in Ecological Niche of Quercus variabilis and Quercus acutissima Leaf Morphological Characters in Response to Moisture and Nutrient Gradient Treatments under Climate Change Conditions 원문보기

環境復元綠化 = Journal of the Korean Society of Environmental Restoration Technology, v.27 no.2, 2024년, pp.43 - 53

박여빈 (국립공주대학교 생명과학과) , 김의주 (국립공주대학교 생명과학과) , 박재훈 (국립공주대학교 생명과학과) , 김윤서 (국립공주대학교 생명과학과) , 박지원 (국립공주대학교 생명과학과) , 이정민 (국립공주대학교 생명과학과) , 유영한 (국립공주대학교 생명과학과)

Abstract ▼ AI-Helper

This study attempted to elucidate the ecological niches and influencing environmental factors of Quercus variabilis and Quercus acutissima, which are representative deciduous broad-leaved trees in Korean forests, taxonomically close and genetically similar, under climate change conditions. Under climate change conditions induced by increased CO2 and temperature, soil moisture and nutrient environments were manipulated in four gradients. At the end of the growing, plants were harvested to measure growth responses, calculate ecological niches, and compare them with those of the control. Eperimental plants were grown for 180 days in a glass greenhouse designed with four gradients each for soil moisture and nutrient environments under climate change conditions induced by increased CO2 and temperature. After harvesting, growth responses of leaf traits were measured, ecological niches were calculated, and these were compared with those of the control groups. Furthermore, the responses of the two species' populations were interpreted using principal component analysis(PCA) based on leaf trait measurements. As a result, under climate change conditions, the ecological niche breadth for moisture environment was broader for Quercus variabilis than Quercus acutissima, whereas for the nutrient environment, Quercus acutissima exhibited a broader niche breadth than Quercus variabilis. And the rate of change in ecological niche breadth due to climate change decreased for Quercus variabilis in both moisture and nutrient environments, while for Quercus acutissima, it increased in the moisture environment but decreased in the nutrient environment. Additionally, in terms of group responses, both Quercus variabilis and Quercus acutissima expanded their ecological niches under climate change conditions in both soil moisture and nutrient conditions, with Quercus acutissima exhibiting a broader niche than Quercus variabilis under nutrient conditions. These results indicate that the changes in leaf morphological characteristics and the responses of individuals reflecting them vary not only under climate change conditions but also depending on environmental factors.

주제어

표/그림 (5)

그림 Figure 1. Schematic diagram of environmental condition treatments: Climate change treatments and soil moisture and nutrient gradient within a glass greenhouse.
표 Table 1. Ecological niche breadth of Q. variabilis(Q.v) and Q. acutissima(Q.a) under climate change treatment(elevated CO₂ - elevated temperature, treatment) by moisture and nutrient environment
그림 Figure 2. Variation(%) in the ecological niche breadth of 8 leaf traits of Q. variabilis and Q. acutissima under climate change treatment in soil moisture and nutrient environment to ambient atmosphere condition(control). Negative numbers indicate a decrease and positive numbers indicate an increase compared to the control.
그림 Figure 3. Principal component analysis(PCA) ordination of 8 leaf traits of Q. variabilis and Q. acutissima under control(ambient CO₂-ambient temperature, C) and climatic change treatment(elevated CO₂-elevated temperature, T) by soil moisture and nutrient environment.
표 Table 2. Correlation matrix of 8 variables treated with the moisture and nutrient gradient with the PC1 and PC2 scores of the principal component analysis(PCA).

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표제어: PCR

동의어: Packet Collision Rate

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용어 설명: PCR은 세균 특이성이 있는 primer를 이용하여 적은 수의 세균이 있을지라도 쉽게 검출할 수 있는 유용한 방법이며, 이를 이용하여 구강 내 치면세균막이나 타액에서 직접 세균을 검출할 수 있게 되었다[8].

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