CAJ | 학술논문

在云南省油茶主产区文山州广南县，以3年生云油茶为研究对象，运用主成分分析法，分析坡向、坡位、坡度、土壤容重和土壤有机质含量等5个立地条件对油茶生长的影响。结果表明，不同立地条件下云油茶各生长指标差异均达到极显著水平，云油茶生长状况与立地条件关系密切；云油茶地径与树高和新梢长都存在极显著的正相关性关系，生长量作用的大小排序为地径＞新梢长＞树高＞枝条数＞冠幅；土壤容重与土壤有机质含量存在极显著的负相关关系，立地条件对云油茶生长影响作用的大小排序为土壤容重＞坡位＞土壤有机质含量＞坡向＞坡度。
재운남성유다주산구문산주엄남현，이3년생운유다위연구대상，운용주성분분석법，분석파향、파위、파도、토양용중화토양유궤질함량등5개입지조건대유다생장적영향。결과표명，불동입지조건하운유다각생장지표차이균체도겁현저수평，운유다생장상황여입지조건관계밀절；운유다지경여수고화신소장도존재겁현저적정상관성관계，생장량작용적대소배서위지경＞신소장＞수고＞지조수＞관폭；토양용중여토양유궤질함량존재겁현저적부상관관계，입지조건대운유다생장영향작용적대소배서위토양용중＞파위＞토양유궤질함량＞파향＞파도。
By investigating the growth status of a new variety of Camellia oleifera in Guangnan county , Yunnan province , and by using Principal Component Analysis approach , a research on the influence of five site conditions i.e., the slope aspect , the slope position , the slope gradient , the soil bulk density and the content of soil organic matter on the growth of Camellia oleifera was conducted.The results showed that the differences of growth indexes were extremely significant under different site conditions , and the growth of the new variety of Camellia oleifera was significantly affected by site conditions .There were extremely significant positive correlations between ground diam-eter and tree height , between ground diameter and the length of sprout .According to the principal component a-nalysis, the order of the major growth indexes was ground diameter ﹥length of sprout ﹥tree height﹥number of branches﹥crown breadth; There were extremely significant negative correlations between soil bulk density and soil organic matter content .Based on the effects of site conditions on the growth of Camellia oleifera , the order of the major site conditions was soil bulk density ﹥slope position ﹥soil organic matter content ﹥slope aspect ﹥slope gradient .