12种木兰科乔木固碳释氧和降温增湿能力研究-广东农业科学.PDFVIP

广东农业科学 2013 年第 6 期 47 12 种木兰科乔木固碳释氧和降温增湿能力研究 于雅鑫 胡希军 金晓玲 中南林业科技大学风景园林学院袁 湖南 长沙 410004 冤 要 选取木兰科的落叶齐木和常绿乔木各 6 种袁采用 Li-6400XT 携带型光合作用测量仪和ACCUPAR LP-80 型植物冠层 分析仪测定各植物的光合速率尧蒸腾速率和叶面积指数袁量化分析各树种单位土地面积上的固碳释氧和降温增湿能力遥结果表明袁 单位土地面积上袁常绿树种的日固碳释氧能力排序为乐昌含笑约平伐含笑约紫花含笑约毛桃木莲约观光木约木莲袁日降温增湿能力排 序为乐昌含笑约平伐含笑约毛桃木莲约紫花含笑约木莲约观光木曰落叶树种中的日固碳释氧能力排序为厚朴约黄花玉兰约黄山木兰约紫 玉兰约凹叶厚朴约鹅掌楸袁日降温增湿能力排序为厚朴约黄山木兰约黄花玉兰约凹叶厚朴约紫玉兰约鹅掌楸遥 综合分析发现袁落叶乔木 的固碳释氧和降温增湿能力比常绿乔木好遥 关键词 木兰科曰 叶面积指数曰 固碳释氧曰 降温增湿 中图分类号 Q949.747.1 文献标识码 A 文章编号 1004-874X 2013冤06-0047-04 Carbon fixation and oxygen release, cooling and humidification of 12 Magnoliaceae species Y U Ya-xin, HU Xi-jun, JI N Xiao-ling (College of Landscape A rc hitecture , Ce ntral South Unive rsity of Forestry Technology, Changsha 410004, China) Abstract: Taking 6 species of deciduous trees and evergreen trees of Magnoliaceae as materials, portable photosynthesis analyzer Li- 6400XT and plant canopy analyzer ACCUPAR LP -80 were used to calculate their photosynthetic rate, transpiration rate and leaf area index. And their carbon fixation and oxygen release, cooling and humidification of unit land area were studied quantitatively. The results showed that in unit land area, the evergreen trees 爷 capacity order of diurnal carbon fixation and oxygen release were Michelia c hapensis约 Miche lia cav aleriei 约Mic helia c rassipes 约Manglietia moto 约Tsoongiode ndron odorum 约Manglietia fordiana, and the capacity order of their diurnal cooling and humidification were Michelia ch