摘要
为了揭示植被的适应机理,从而为广西滨海过渡带的恢复途径与技术提供科学依据,对两种不同培养(海沙培养和河沙培养)基质下红鳞蒲桃幼苗的光合生理日变化特征进行研究。结果表明,在海沙中生长的红鳞蒲桃幼苗的光合速率、蒸腾速率及气孔导度均高于在河沙中生长的幼苗。两种基质培养的幼苗的光合速率和气孔导度都呈现"双峰"曲线的变化趋势,且第一个峰值大于第二个峰值。幼苗的蒸腾速率呈现"波浪"渐减曲线的变化趋势。
In order to reveal the mechanism of adaptation of vegetation and provide scientific basis for recovery approach and technology in coastal zone in Guangxi,the photosynthetic diurnal variation characteristics of Syzygium hancei seedlings in two different filter media,including sea sand culture and river sand culture,were studied.The results showed that photosynthetic rate,transpiration rate and stomatal conductance of Syzygium hancei seedlings in sea sand were higher than that in river sand.Photosynthetic rate and stomatal conductance showed ＂peaks＂ of the trend curve,and the first peak was greater than the second peak in two filter media.Transpiration rate of the seedlings was a ＂wave＂ in the trend of decreasing curve.
出处
《中国农学通报》
CSCD
北大核心
2010年第2期141-144,共4页
Chinese Agricultural Science Bulletin
基金
广西大学学术带头人启动项目"广西滨海生态过渡带退化机理与恢复研究"
关键词
红鳞蒲桃
光合速率
幼苗日变化
Syzygium hancei Merr.et Perry
photosynthetic rate
seedling
diurnal variation
