文献类型：期刊文献

中文题名：杜仲蒸腾强度和气孔行为的初步研究

英文题名：A PRELIMINARY STUDY ON LEAF TRANSPIRATION AND STOMATAL CONDUCTANCE OF EUCOMMIA ULMOIDES

作者：张劲松[1] 孟平[1] 尹昌君[1]

第一作者：张劲松

机构：[1]中国林业科学研究院林业研究所

年份：2002

卷号：38

期号：3

起止页码：34-37

中文期刊名：林业科学

外文期刊名：Scientia Silvae Sinicae

收录：CSTPCD;;Scopus;北大核心:【北大核心2000】；CSCD:【CSCD2011_2012】；

基金："九五"国家科技攻关专题"太行山代山丘陵区复合农林业综合配套技术"(96 0 0 7 0 4 0 5 )研究的部分内容

语种：中文

中文关键词：杜仲;蒸腾强度;气孔行为;气孔导度;气象因子

外文关键词：Eucommia ulmoides , Transpiration, Stomatal conductance, Meteorological elements

分类号：S567.19;S715.4

摘要：对太行山低山丘陵区 4a生人工杜仲林叶片的蒸腾强度和气孔导度进行测定和分析 ,结果表明 :(1)在晴朗和晴 -多云天气日 ,叶片蒸腾强度日变化呈双峰型 ,在阴天天气日 ,则呈单峰型 ;(2 )气孔导度的日变化趋势与蒸腾强度基本一致 ;(3)蒸腾强度与光量子密度、饱和水汽压差、水面蒸发等气象因子之间 ,具有较好的相关关系 ;(4)鉴于水面蒸发的测定比较方便、简单 ,因此 ,利用日水面蒸发测定值和叶面积指数去估算杜仲蒸腾耗水量 。
The leaf transpiration ( TR ) and stomatal conductance( g s ) of 4 year old Eucommia ulmoides in the hilly land of Taihang Mountain were measured and analyzed. The results showed that: (1) the diurnal variation of TR was demonstrated double\|peak curve in clear day and cloudy to clear day, and single\|peak curve in overcast day; (2) the tend of diurnal variation of g s was almost the same as TR; (3) the values of TR showed good agreement with meteorological elements such as photon flux density( PFD ), saturation vapour pressure deficit of air( D ) and water surface evaporation ( EV ); (4) Because there was close relation between EV and TR ,and the approach of measuring EV was relative simple,it was feasible that TR was estimated using data on EV.