CAJ | 학술논문

非结构性碳水化合物（ Non-structural carbohydrates，NSC）含量可较好地表征植物对环境的适应性。该研究比较分析了亚热带地区常见的落叶与常绿2种生活型园林树种的叶和枝中NSC（可溶性糖、淀粉）的含量及其季节变化，以探讨不同生活型植物对亚热带气候的适应方式。结果表明：（1）落叶和常绿树种叶的NSC含量差异明显，落叶树种的为15?71％，而常绿树种的达19?24％；（2）落叶和常绿树种叶和枝的NSC含量均呈现明显的季节动态，叶可溶性糖含量随季节变化逐渐升高、而淀粉含量呈下降的趋势；2种生活型树种1年生枝的可溶性糖含量都表现为上升的趋势，落叶树种的淀粉含量呈“∧”形变化，常绿树种的呈逐渐下降趋势，但落叶树种叶的可溶性糖和枝的淀粉含量季节波动更大；（3）落叶树种的叶可溶性糖与多年生枝的淀粉含量表现为显著负相关，而与1年生枝的关系不显著；常绿树种叶可溶性糖与1年生枝的可溶性糖含量呈正相关，而与多年生枝的相关性不显著。总之，落叶和常绿树种对亚热带气候存在不同的糖转移和转化适应机制。
비결구성탄수화합물（ Non-structural carbohydrates，NSC）함량가교호지표정식물대배경적괄응성。해연구비교분석료아열대지구상견적락협여상록2충생활형완림수충적협화지중NSC（가용성당、정분）적함량급기계절변화，이탐토불동생활형식물대아열대기후적괄응방식。결과표명：（1）락협화상록수충협적NSC함량차이명현，락협수충적위15?71％，이상록수충적체19?24％；（2）락협화상록수충협화지적NSC함량균정현명현적계절동태，협가용성당함량수계절변화축점승고、이정분함량정하강적추세；2충생활형수충1년생지적가용성당함량도표현위상승적추세，락협수충적정분함량정“∧”형변화，상록수충적정축점하강추세，단락협수충협적가용성당화지적정분함량계절파동경대；（3）락협수충적협가용성당여다년생지적정분함량표현위현저부상관，이여1년생지적관계불현저；상록수충협가용성당여1년생지적가용성당함량정정상관，이여다년생지적상관성불현저。총지，락협화상록수충대아열대기후존재불동적당전이화전화괄응궤제。
Non-structural carbohydrate ( NSC) is a good indicator for plant adaptation to the environment. In order to in-vestigate different life form plants adapting to the way of subtropical climate, the content of NSC ( soluble sugar and starch) in the leaves and branches of two common deciduous and evergreen landscape tree species in subtropical region were measured seasonally.The results showed that (1) The content of NSC in leaves was different between deciduous and evergreen trees, the soluble sugar was 15.71% in deciduous tree species, while it was up to 19.24% in evergreen trees. ( 2) The content of all NSC components in leaves and branches of two life form trees showed significant seasonal dynam-ics,with a rising trend of soluble sugar, a falling trend of starch in two kind of leaves. The content of soluble sugar in one-year-old branch showed a rising trend in two life forms, a“∧” shape of starch for deciduous and a falling trend for evergreen trees. But the seasonal dynamic rate of the soluble sugar in leaves and the starch in branches were faster for deciduous trees than that for evergreen trees. ( 3) There was a significant negative relationship between the contents of the soluble sugar in leaves and starch in perennial branches for deciduous trees, but not for one-year-old branches. The contents of the soluble sugar in leaves and one-year-old branches were significantly and positively correlated for evergreen trees. These studies indicated that there were different mechanisms of sugar transformation and translocation between de-ciduous and evergreen trees to adapt subtropical climate.