지구온난화와 환경요소인 광, 토양수분, 영양소가 상수리나무와 굴참나무의 생태 지위에 미치는 영향
분야
자연과학 > 지질
저자
조규태 ( Kyu Tae Cho ) , 장래하 ( Rae Ha Jang ) , 이승혁 ( Seung Hyuk Lee ) , 한영섭 ( Young Sub Han ) , 유영한 ( Young Han You )
발행기관
한국하천호수학회(구 한국육수학회)
간행물정보
생태와 환경 2013년, 제46권 제3호, 429~439페이지(총11페이지)
파일형식
08802018.pdf [무료 PDF 뷰어 다운로드]
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    영문초록
    This study was conducted to determine the changes of the ecological niche breadth and niche overlap of Quercus acutissima and Quercus variabilis under elevated CO2 concentrations and under elevated temperature conditions. We investigated the growth responses by environmental factor, CO2 concentration, air temperature, light, soil moisture and nutrients. Rising CO2 concentration was treated with 1.6 times than control (ambient) and increased temperature with 2.2℃ above the control (ambient) in the glass greenhouse. Ecological niche breadth and niche overlap was calculated the two oak species (Q. acutissima and Q. variabilis), which were cultivated with light, soil moisture and nutrient gradients at four levels. As a result, the ecological niche breadth of Quercus acutissima was determined to be increased under the warming treatment, but decreased under soil moisture and nutrient environments. The ecological niche breadth of Quercus variabilis was increased under light, soil moisture and nutrients of the warming treatment than control. Ecological niche overlap between Quercus acutissima-Quercus variabilis was increased under light of the warming treatment than control, but decreased under soil moisture and nutrient environments. These results means that two oak species are more severe competition in light environments than soil moisture and nutrient environments. According to analyses of the Cluster and PCA, the two oak species were more sensitive react under light environment than to elevated CO2 concentration or elevated temperature.
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