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Relationships between Soil-Site Properties and Bamboo (Phyllostachys bambusoides) Growth
정영관,Chung, Young Gwan,Ramm, Carl W. Korean Society of Forest Science 1990 한국산림과학회지 Vol.79 No.1
17개(個)의 토양인자(土壤因子)와 대나무의 직경(直徑), 간고(稈高) 그리고 절간(節間) 생장량(生長量)과의 관계(關係)를 구명(究明)하기 위하여 정준상관분석(正準相關分析)을 실시(實施)하였다. 첫번째 정준상관(正準相關)은 매우 유의적(有意的) 이었고, 변수(變數)의 2조합(組合)에서 분산(分散)은 크고, 그리고 정준변량(正準變量)은 생물학적(生物學的)으로 의의(意義)가 있었다. 따라서 표층토심(表層土深), 전질소(全窒素) 그리고 유기물함량(有機物含量)등은 첫번째 토양성질(土壤性質)의 정준변량(正準變量)과 매우높은 정(正)의 상관(相關)을 나타내었다. 그리고 점토함량(粘土含量)과 치환성용량(置煥性容量)은 부(負)의 상관(相關)으로 나타났다. 17개(個) 변수(變數) 가운데 8개(個) 변수(變數)만이 대나무의 생장(生長)을 예측(豫測)하는데 관계(關係)되는 것으로 사료(思料)된다. Canonical correlation analysis was used to relate 17 soil-site variables to bamboo diameter, height, and internodal characteristics. The first canonical correlation was highly significant, explained much of the variance in both sets of variables, and the canonical variates made sense biologically. Surface soil depth, total nitrogen and percent organic matter had high positive correlations with the first soil-site canonical variate. Clay content (%) and cation exchange capacity were negatively correlated with the first soil-site canonical variate. Only 8 of predictor variables were considered relevant for predicting bamboo growth.
정영관,홍병화,김종만 ( Young Gwan Chung,Byung Wha Hong,Jong Man Kim ) 한국산림과학회 1980 한국산림과학회지 Vol.46 No.1
This experiment was carried out to investigate the effects of physico-chemical properties of soil on the growth of Chamaecyparis obtusa and to apply the results to such rational forest management as yield forecast and selection of suitable species for a given forest stand. The soil properties observed in this experiment were soil pH, exchangeable pH organic matter, total nitrogen, available P₂O_5, cation exchange capacity, exchangeable H^+, total base and base saturation. Diameter at breast height (DBH), height and volume growth of C. obtusa were observed at 78 sampling sites. Data were processed into the following series for the analysis of multivariates : inner correlation matrix, multiple correlation coefficients, regression coefficients and partial correlation coefficients. The results are summerized as follows: 1. Multiple correlation coefficients between soil properties and DBH of C. obtusa were .364 for 20-year trees, resulting less efficient for estimating the growth of C. obtusa. However, total base, soil pH and base saturation were considerable characters for better estimation. 2. More efficient multiple correlation coefficients were observed between soil properties and height growth than those between soil properties and DBH, showing .443 for 20-year trees and factors affecting the height growth were similar to those of DBH. 3. Extremely low values of multiple correlation coefficients were estimated between physico-chemical properties of soil and volume growth of C. obtusa resulting low efficient estimation. However, total base contributed highly to volume growth of C. obtusa. Accordingly the most contributable factor for estimating the growth of C. obtusa were total base, soil pH and base saturation. Consequently, these results can be effective for selecting of the reforesting site, and less effective for estimating the growth of C. obtusa.