Journal of Environmental Science International (한국환경과학회지)

The Korean Environmental Sciences Society (한국환경과학회)
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The Effects of Site Environmental Factors on Estimation of Site Index Function for Chamaecyparis obtusa Endlicher Stands

입지환경인자를 바탕으로 한 편백의 지위지수 추정에 관한 연구

  • Kim, Dae-Hyun (Warm Temperate Forest Research Center, Korea Forest Research Institute) ;
  • Kim, Eui-Gyeong (Division of Environmental Forest Science, College of Agriculture and Life Sciences, Gyeongsang National University) ;
  • Lee, Sung-Gi (Warm Temperate Forest Research Center, Korea Forest Research Institute) ;
  • Chung, Young-Gyo (Warm Temperate Forest Research Center, Korea Forest Research Institute) ;
  • Jeong, Jin-Hyun (Warm Temperate Forest Research Center, Korea Forest Research Institute)
  • 김대현 (국립산림과학원 난대산림연구소) ;
  • 김의경 (경상대학교 환경산림과학부) ;
  • 이성기 (국립산림과학원 난대산림연구소) ;
  • 정영교 (국립산림과학원 난대산림연구소) ;
  • 정진현 (국립산림과학원 난대산림연구소)
  • Published : 2008.08.30
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Abstract

This study was conducted to develop the effects of site environmental factors on estimation of site index function for Chamaecyparis obtusa Endlicher stands. We derived nonlinear growth equation and the draw site index curves by applying this estimated equation. This study with Chapman-Richards function showed significant P-value which was less then 0.0001 and $R^2$ value 0.5947. This study was conducted to develop the feasible site index equation of Chamaecyparis obtusa Endlicher. For the table, the data of 82 sample areas that were thought to be without errors among the data of Chamaecyparis obtusa Endlicher sample area located on the value-oriented forest location chart were used and estimated. After analyzing the quantification method I based on 13 environmental factors to develop the score table for the site-index estimation of Chamaecyparis obtusa Endlicher, $R^2$ value of the model was 0.7555. It has been analyzed that the scope value of Soil moisture in horizon A was 7.5045, that of total soil depth was 6.3896, that of topography was 5.3471, that of slope was 4.7000 and that of aspect was 3.2038. After analyzing the partial correlation to examine the factors that affected most the site-index of Chamaecyparis obtusa Endlicher, it has been noted that the partial correlation of climatic zone was 0.4987, which was highest, and it was followed by Soil moisture in horizon A (0.4592), slope (0.4537), topography (0.3299) and total soil depth (0.1035). As a result of conducting the significance test for partial correlation, it has been found that topography, climatic zone, parent rock, slope, altitude, aspect, Soil moisture in horizon A, soil hardness in horizon A and total soil depth were recognized significant with 1% of significance level and sedimentary type and soil texture in horizon A were recognized significant with 5% of significance level.

Keywords

References

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