中文摘要：

对闽东南海岸带代表山地灵石山次生林的2种优势乔木和3种优势灌木的叶绿素含量及其不同海拔资源位的变化规律进行了研究．结果显示：米槠和猴欢喜2种乔木的叶绿素含量总体呈现随海拔升高而降低的趋势；围涎树、罗伞树和九节木3种灌木的叶绿素含量没有随海拔升高出现明显变化的趋势；5种树种中唯有米槠叶绿素含量在不同海拔资源位上具有极显著差异；300和400m两个海拔资源位乔木与灌木叶绿素含量间的差异显著；300—700m海拔资源位2种乔木叶绿素含量间的差异极显著；200—400m海拔资源位同种灌木叶绿素含量间的差异不显著，而不同种灌木叶绿素含量间的差异极显著．表明植物能够根据其所处的海拔资源位来调整叶绿素含量．

英文摘要：

The chlorophyl traits of 2 dominant arbors and 3 dominant shrubs in multi-elevation resource niche were analyzed in the secondary forests of Lingshi Mountain. The results showed that the chlorophyll contents of Castanopsis carlesii and Sloanea sirtensis generally decreased with the increase of elevation, while those of Irenina pithecollobii, Ardisia quinquegona and Psychotria rubra did not obviously correspond with elevations. The chlorophyll contents of Castanopsis carlesii showed significant differences in various el- evation resource niches. There were significant differences in chlorophyll contents between arbors and shrubs in elevations of 300 m and 400 m and obviously significant differences between arbor species in elevations of 300 - 700 m. In the elevations of 200 - 400 m, no significant differences were found in chlorophyll contents of the same shrub species, while obviously significant differences were found among various shrubs. The adjustment of chlorophyll based on elevation resource niche, community niche and lights ex- olains the strategies of olants to adapt to environment.