鹅掌楸和女贞同化CO_2和释O_2能力的比较  

CO_2 Absorbing and O_2 Releasing of Liriodendron chinese and Ligustrum lucidum

作　　者：陈辉[1] 阮宏华[1] 叶镜中[1] 

机构地区：[1]南京林业大学,南京210037

出　　处：《城市环境与城市生态》2002年第3期17-18,共2页Urban Environment & Urban Ecology

基　　金：国家林业局下蜀城市森林生态系统定位站基金项目;国家自然科学基金项目 (3 983 93 70 -1)

摘　　要：采用LI- 6 4 0 0红外气体分析仪 ,分别在生长初期、盛期、末期测定鹅掌楸和女贞净光合速率 ,用重量法测定叶面积。得到女贞的净光合速率、叶面积指数和同化CO2 及释O2 的能力均大于鹅掌楸的结论 。Liriodendron chinese and Ligustrum lucidum are common green trees. In this paper, their net photosynthetic rate (Pn) were determined in different growth seasons: initial stage, flourishing stage and final stage and their gross leave area was also measured. The result showed that the net photosynthetic rate, the leave area indexes and the ability of CO 2 absorbing and O 2 releasing of Ligustrum lucidum were all better than of Liriodendron Chinese, which is very useful for the selection of green trees.

关 键 词：鹅掌楸 女贞 净光合速率 叶面积指数 氧气 二氧化碳 城市绿化 树种 

分 类 号：X173[环境科学与工程—环境科学] S731.2[农业科学—林学]