文献类型：期刊文献

中文题名：干热河谷4个树种叶温与蒸腾速率关系的研究

英文题名：Relationship between Leaf Temperature and Transpiration of 4 Tree Species in Dry-hot Valley in Yunnan

作者：彭辉[1] 李昆[1,2] 孙永玉[1,2]

第一作者：彭辉

机构：[1]中国林业科学研究院资源昆虫研究所;[2]国家林业局元谋荒漠生态定位站

年份：2009

卷号：24

期号：4

起止页码：1-4

中文期刊名：西北林学院学报

外文期刊名：Journal of Northwest Forestry University

收录：CSTPCD;;北大核心:【北大核心2008】；CSCD:【CSCD_E2011_2012】；

基金：国家科技部"十一五"科技支撑课题:(2006BAD03A0101);(2006BAD03A0304)

语种：中文

中文关键词：干热河谷;叶温;蒸腾速率

外文关键词：dry-hot valley; leaf temperature ; transpiration

分类号：S718.43

摘要：对金沙江干热河谷4个树种叶温与蒸腾速率日进程在旱季和雨季的关系进行研究,结果表明:(1)4个树种旱季蒸腾受到严重抑制呈单峰曲线,致使叶温大部分时间高于气温。其中旱季通过蒸腾控制叶温的能力排序为车桑子>赤桉>苏门答腊金合欢>大叶相思。(2)雨季4个树种蒸腾均为双峰曲线,都有明显的"午降现象",且叶温大部分时间低于气温。
The leaf temperature and diurnal course of transpiration rate of 4 tree species in rain season and dry season in dry-hot valley were studied. The results showed that （1） the transpiration of 4 tree species were all severely inhibited, and exhibited single-peak curve under dry season, the leaf temperature were higher than air temperature, the ability of maintaining leaf temperature through transpiration was in the order of Dodonaea viscosa （L） Jacq〉 Eucalyptus camaldulensis Dehnh〉Acacia glauca （L） Moelichl〉 Acacia auriculiformis A. Cunn. ex Benthn, （2） in rain season, the diurnal course of transpiration rate of 4 tree species showed double-peak curve, there appeared an obviously phenomenon of transpiration midday depression ,and the leaf temperature was lower than air temperature in most of the daytime.