文献类型：期刊文献

中文题名：广西热带岩溶区苹婆幼树光合蒸腾特性研究

英文题名：Photosynthesis and Transpiration Characteristics of Sterculia nobililis Seedlings in Guangxi Tropical Karst Area

作者：朱宏光[1] 农友[1] 苏建苗[2] 王家妍[1] 李燕群[1] 刘正富[1] 赵金龙[1] 林建勇[1] 温远光[1]

第一作者：朱宏光

机构：[1]广西大学林学院;[2]中国林业科学研究院热带林业实验中心

年份：2011

卷号：39

期号：13

起止页码：7751-7752

中文期刊名：安徽农业科学

外文期刊名：Journal of Anhui Agricultural Sciences

收录：北大核心:【北大核心2008】；

基金：广西自然科学基金项目(桂科基0639006);中南速生材繁育重点实验室开放基金项目(KF[2004]-002);"十一五"广西林业科技项目(林科字[2008]第08号)

语种：中文

中文关键词：苹婆;净光合速率;蒸腾速率;气孔导度;水分利用效率;岩溶地区

外文关键词：Sterculia nobililis; Net photosynthesis rate; Transpiration rate; Stomata conduct; Water use efficiency; Karst areas

分类号：S718.45

摘要：[目的]探讨北热带岩溶区主要树种苹婆幼树的光合蒸腾特性。[方法]利用1年生苹婆实生苗,经盆栽和控水试验,研究其净光合速率、蒸腾速率、气孔导度、胞间CO2浓度、水分利用效率等的变化。[结果]长期干旱胁迫和正常供水的苹婆幼树,其净光合速率、蒸腾速率、气孔导度、水分利用效率有极显著差异,干旱胁迫将导致净光合速率、蒸腾速率和气孔导度显著降低,而水分利用效率有所提高。[结论]苹婆属于光合速率、蒸腾速率和水分利用效率较低的树种。
[Objective] The aim of this paper was to study the photosynthesis and transpiration characteristics of S.nobililis seedlings under different water conditions.[Method] The effect of water stress on the net photosynthesis rate,transpiration rate,stomata conduct,intercellular carbon dioxide concentration and water use efficiency of 1-year old seedlings of S.nobililis was studied by pot experiment.[Result] There were significant difference in net photosynthesis rate,transpiration rate,stomata conduct and water use efficiency of the S.nobililis seedlings under pot experiment of different water conditions.The condition of long-term water stress generated the decreasing ofthe net photosynthesis rate,transpiration rate,stomata conduct of seedlings obviously,whereas increasing the water use efficiency.[Conclusion] The S.nobililis belong to a tree of lower photosynthesis rate,transpiration rate and water use efficiency.