CAJ | 학술논문

采用生态解剖学的方法对玉龙雪山自然保护区内不同海拔梯度（3100 m，3250 m，3400 m，3550 m，3700 m）的急尖长苞冷杉叶片解剖结构特征进行比较研究，探究不同海拔高度对急尖长苞冷杉叶片生态适应的影响。结果表明：在海拔低于3550 m时，随着海拔的升高，叶片表皮角质层厚度、上表皮厚度、栅栏组织厚度、海绵组织厚度、栅栏组织细胞长短径、栅栏系数、栅栏细胞系数、韧皮部厚度、木质部厚度及转输组织厚度均呈增大趋势，而海拔高于3550 m时，各项指标及参数有所下降。因此，海拔3550 m附近为玉龙雪山急尖长苞冷杉生长最适宜的环境；不同海拔梯度上复杂的环境条件导致了急尖长苞冷杉叶片解剖结构的差异性，并限制了它的生长和分布。这种差异性是植物在一定程度上适应环境的结果。
채용생태해부학적방법대옥룡설산자연보호구내불동해발제도（3100 m，3250 m，3400 m，3550 m，3700 m）적급첨장포랭삼협편해부결구특정진행비교연구，탐구불동해발고도대급첨장포랭삼협편생태괄응적영향。결과표명：재해발저우3550 m시，수착해발적승고，협편표피각질층후도、상표피후도、책란조직후도、해면조직후도、책란조직세포장단경、책란계수、책란세포계수、인피부후도、목질부후도급전수조직후도균정증대추세，이해발고우3550 m시，각항지표급삼수유소하강。인차，해발3550 m부근위옥룡설산급첨장포랭삼생장최괄의적배경；불동해발제도상복잡적배경조건도치료급첨장포랭삼협편해부결구적차이성，병한제료타적생장화분포。저충차이성시식물재일정정도상괄응배경적결과。
To study the ecological adaptation of Abies georgei var.Smithii leaves at different gradient eleva?tions,the leaf anatomical characteristics of Abies georgei var. Smithii and their relationship with ecological fac?tors were investigated,which are growing at different elevations ( 3 100 m,3 250 m,3 400 m,3 550 m,3 700 m) in the Nature Reserve of Yulong Snow Mountain.The results showed that:at the altitude below 3 550 m,the strata corneum epidermidis thickness,upper epidermis thickness,palisade mesophyll thickness,spongy meso?phyll thickness,length and width of palisade cell,palisade tissue ratio,palisade cell factor,phloem thickness, xylem thickness and the transfusion tissue thickness increased with the increasing elevation. However,the pa?rameters of leaf anatomical characteristics decreased at the elevation above 3 550 m. Hence, the optimum zone for Abies georgei var.Smithii was nearly at the elevation of around 3 550 m.On one hand,the growth and distribution of Abies georgei var.Smithii are limited by the changes of complex environmental conditions along with different altitudes,which resulted in the differences of the leaf anatomical characteristics of Abies georgei var.Smithii.On the other hand,these differences of the plant could lead to a good adaptation to the environment changes in a certain degree.