天台山植物功能群光合生理特性研究  

Study on Photosynthetic Characteristics of Plant Functional Groups at Tiantai Mountain

作　　者：陈海生[1] 

机构地区：[1]浙江同济科技职业学院,浙江杭州311231

出　　处：《安徽农学通报》2012年第9期41-42,53,共3页Anhui Agricultural Science Bulletin

基　　金：浙江省教育厅高校科研计划项目(Y201122704)

摘　　要：于2011年7月份对浙江省天台山森林生态系统海拔700m处的以木荷(Schima su Perba)为优势种的植物功能群光合生理生态特性进行了研究,分别测定了乔木木荷(Schima su Perba)、灌木柃木(Eurya ja ponica)和草本茫萁(Dicranopteris dichotoma)叶片的叶绿素含量和光合速率、气孔导度的日变化。结果表明:3种植物的净光合速率日平均值以木荷的为最高,其他依次为柃木和茫萁。气孔导度的日平均值同样以接受强光照的乔木木荷为最高,灌木柃木次之,草本茫萁最低。木荷和柃木的叶绿素a、叶绿素b含量以及Chla/Chlb均低于茫萁,这说明草本植物茫萁由于叶绿素含量高,从而可以吸收较多的太阳辐射,是草本植物对林下长期低光照的生态适应。Taking samples from communities dominated by Schima su Perba, the leaf photosynthetic characteristics and chlo- rophyll contents of Plant functional groups at Tiantai mountain in Zhejing province were studied in July 2011. The results showed the average diurnal net photosynthetic rate and stomatal conductance of Schima su Perba are the highest among three plants, next to Eurya japonica and Dicranopteris dichotoma. The contents of chlorophyll a , chlorophyll b and the ratio of chlorophyll a / chlorophyll b of Dicranopteris dichotoma are higher than those of Schima su Perba and Euryaja ponica respec- tively ,which is the results from ecological adaptation of Dicranopteris dichotoma under weak light for long time.

关 键 词：植物功能群 光合生理特性 天台山 

分 类 号：Q94[生物学—植物学]