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경기,충청지역의 수치 산림입지도를 이용한 주요 수종의 산림생산력 추정에 관한 연구
구교상 ( Gu Gyo Sang ),김인호 ( Kim In Ho ),정진현 ( Jeong Jin Hyeon ),원형규 ( Won Hyeong Gyu ),신만용 ( Sin Man Yong ) 한국농림기상학회 2003 한국농림기상학회지 Vol.5 No.4
N/A This study was conducted to develop site index equations by main species grown in Gyunggi and Chungcheong provinces using environmental factors obtained from a digital forest site map. For this, 28 environmental factors were regressed on site index by species. Four to five environmental factors by species were selected as independent variables in the best site index equations (coefficients of determination greater than 0.91). For these site index equations, three evaluation statistics, mean difference, standard deviation of difference, and standard error of difference, were applied to the data set. Site index equations by species relationships developed in this study effectively estimate forest productivity in the study area. However, the site index equation of Larix leptolepis showed a larger than expected bias between the estimated and the measured site index. The reason is not clear in this situation, but might be because of the small sample set. It will be necessary, therefore, to conduct more studies to determine the exact reason. It is also expected that the site index equations with a few environmental factors as independent variables could provide valuable information about species well suited to given site conditions. Site index equations for other species should be developed to establish a rational policy about the selection of best species for site conditions.