浙江林学院学报2001，Vol.18Issue(1)：46-49,4.
元谋干热河谷几种外来树种在旱季的光合特点
Photosynthetic characteristics of several exotic species in dry season in Yuanmou County
摘要
Abstract
The measurements of diurnal pattern of net photosynthetic rate ofAcacia mangium，A． aulacocarpa，A． auriformis，A． holosericea，A． cunninghamii，Eucalyptus camaldulensis，E． exserta，E． citriodora were carried out in three year old stands in Zulin twonship，Yuanmou County．The net photosynthesis rate in eight species showed the double-peak pattern during the drought period．The maximum of photosynthetic rate appeared at 9：00 and 15：00 respectively （A． aulacocarpa，A． auriformis and A． cunninghamii at 17：00）．The minimum appeared at 13：00（A． cunninghamii at 15：00）．The photosynthesis patterns in eight species showed significant midday depression caused by the closure of stomata．This midday depression must be one of the adaptation of the plant to the climate of dry-hot valley，regulating the moisture condition in the stand and saving the water for survival．关键词
干热河谷/光合作用/桉树/相思树/生态区适应分类
农业科技引用本文复制引用
马焕成,吴延熊..元谋干热河谷几种外来树种在旱季的光合特点[J].浙江林学院学报,2001,18(1):46-49,4.基金项目
云南省中青年学术和技术带头人培养基金资助项目(98C060M)；云南省基础研究基金资助项目(98C012G) （98C060M）
