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지리산 구상나무림의 식생구조 변화와 연륜생장 패턴 원문보기

  • 저자

    조민기

  • 학위수여기관

    경상대학교 대학원

  • 학위구분

    국내박사

  • 학과

    산림자원학과

  • 지도교수

  • 발행년도

    2014

  • 총페이지

    ⅸ, 100 p.

  • 키워드

    구상나무 식생구조 연륜 기후변화;

  • 언어

    kor

  • 원문 URL

    http://www.riss.kr/link?id=T13534393&outLink=K  

  • 초록

    Abstract The provide the basic information on relationship between Abies koreana and climatic change, soil environment, vegetation structure, weather and annual-ring growth were studied on A. koreana forest in Mt. Jirisan. All 111 plots were set up in Habong, Jungbong, Jeseokbong, Seseok, Tokkibong, Banyabong and Dwaejiryeong on A. koreana forest in Mt. Jirisan. 1. Soil environment 1) Analysis of soil chemical properties, soil pH was 4.26~4.64, organic matter 10.58~13.86%, total N 0.20~0.41%, available phosphorus 10.86~20.93ppm, Cation exchange capacity 16.63~22.37cmol+/kg, exchangeable cation were high in the order of their content of Ca2+>Mg2+>K+>Na+. 2. Vegetation of A. koreana forest 1) The importance value of A. koreana forest at the tree layer was the highest as in order of A. koreana(32.4~70.9), and high in other of Pinus koraiensis(6.7~24.8), Beltula ermanii(5.3~19.6). The importance value of A. koreana forest at the subtree layer was the highest as in order of A. koreana(7.9~37.6) and high in order of Rhododendron mucronulatum(9.9~31.1). In the shrub layer, the importance value of A. koreana was only 0.4~15.0, and generally high to Tripterygium regelii(6.4~29.4), Sasa borealis(0.9~19.9). In the herb layer, Appearance to 117 species were Calamagrostis arundinacea, Hosta longipes, Ainsliaea acerifolia etc. 2) The species diversity of A. koreana forest at the tree layer were 0.310~0.669, the subtree layer were 0.882~1.123, the shrub layer were 0.856~1.343, and Evenness values at the tree layer were 0.344~0.702, the subtree layer were 0.607~0.932, the shrub layer were 0.605~0.867. 3) The distribution of DBH of A. koreana showed to reverse J type, and 20 years ago was appeared reverse J type. Therefore, for a while expected to maintain homeostasis. 4) As a result of analyzing for height and DBH, the A. koreana distributions of DBH and height were lower than the P. jezoensis. 5) The similarity index analysis of A. koreana forest showed that wide range of 0.3 to 0.7 have the distribution. The similarity index analysis in 7 areas of A. koreana forest showed that Habong, Jungbong and Jeseokbong belong to similar community and has same species components. 6) By Morisita's index, A. koreana, Pinus koraiensis, Betula ermanii and Picea jezoensis showed the random distribution at the tree layer, and values were 1.149~1.556. A. koreana and almost species showed the random distribution at the subtree layer, and values were 1.085~1.801. Pinus koraiensis, Acer barbinerve and Symplocos tanakana showed the uniform distribution at the subtree layer, and values were 0.727~0.771. Salix hallaisanensis showed the aggregated distribution at the subtree layer, and values were 2.049. 7) According to species correlation among the importance percentages of the woody species, A. koreana was significantly and positively correlated with Malus baccata var. mandshurica, however, significantly and negatively correlated with Picea jezoensis, Symplocos tanakana, Sorbus commixta, Acer komarovii, Pinus koraiensis, Carpinus cordata, Euonymus macropterus, Viburnum opulus var. calvescens, Acer ukurunduense, Carpinus laxiflora, Taxus cuspidata. 3. Pattern of annual ring growth 1) The accumulated days of YDI and Tn in Banyabong were 226 days and 193 days in 2012, 245 days and 194 days in 2013, and the accumulated days of YDI and Tn in Seseok were 228 days and 201 days in 2012, 244 days and 198 days in 2013. 2) The mean temperature in Banyabong and Seseok was higher of 1℃ in 2013 than 2012. The temperature lapse rate in the two regions was appeared –0.47℃/100m in Banyabong, and –0.50℃/100m in Seseok, respectively. 3) Average annual ring growth in each diameter class was 1.012 mm/year at small diameter tree, 1.118 mm/year at middle diameter tree and 1.323 mm/year at large diameter tree. Since the late 1980s, annual ring growth have been decreased in all diameter class. 4) This study aims to reveal the relationship between major climatic factors and annual ring growth in A. koreana forest. In terms of relationship between monthly mean temperature and annual ring growth, negative correlations were observed in monthly temperature. On the other hand, positively correlation were observed in monthly precipitation. 5) Using the Pearson's correlation analysis, correlation coefficients were obtained between major climate factors and annual ring growth of each diameter class for A. koreana forest stand in Mt Jirisan. Climate factors such as average temperature, precipitation, average temperature in growth period, accumulated temperature in summer, accumulated temperature in autumn and low temperature had significance at significant level 5%, and middle diameter either. However, large diameter had no significance except average temperature, accumulated temperature in autumn and low temperature at significant level 5%.


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