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| 内蒙古典型草原地区常见植物光合、蒸腾速率和水分利用效率的比较研究 | |
| 引用本文： | 杜菁昀,杜占池,崔骁勇.内蒙古典型草原地区常见植物光合、蒸腾速率和水分利用效率的比较研究[J].草业科学,2003,20(6):11-15. |
| 作者姓名： | 杜菁昀 杜占池 崔骁勇 |
| 作者单位： | 1. 中国科学院研究生院,北京,100039 2. 中国科学院地理科学与资源研究所,北京,100101 3. 中国林业科学院森林生态环境与保护研究所,北京,100091 |
| 基金项目： | 国家自然科学基金重大项目(49790020)，中科院内蒙古草原生态系统定位研究站(9813)资助 |
| 摘 要： | 在所测78种植物中，光合(Ph)、蒸腾速率(Tr)和水分利用效率(WUE)的平均值，分别以反枝苋、藜和西伯利亚滨藜最高。在不同分类系统中，Ph、Tr和WUE个指标，C4植物大于C3植物；双子叶植物通常大于单子叶植物；藜科植物高于其他科植物；1—2年生草本高于其他生活型植物；撂荒地植物一般高于其他植被类型的植物。方差分析表明，光合速率的差异显著性水平在各分类系统中均高于蒸腾速率和水分利用效率。 |
| 关 键 词： | 内蒙古典型草原地区 光合速率 蒸腾速率 水分利用效率 植物 |
| 文章编号： | 1001-0629(2003)06-0011-05 |
A comparative study on photosynthesis, transpiration rate and water use efficiency of common plants in typical steppe grassland of Inner Mongolia |
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| DU Jing yun ,DU Zhan chi ,CUI Xiao yong.A comparative study on photosynthesis, transpiration rate and water use efficiency of common plants in typical steppe grassland of Inner Mongolia[J].Pratacultural Science,2003,20(6):11-15. | |
| Authors: | DU Jing yun DU Zhan chi CUI Xiao yong |
| Institution: | DU Jing yun 1,DU Zhan chi 2,CUI Xiao yong 3 |
| Abstract: | The average values of photosynthesis (Ph), transpiration rate (Tr) and water use efficiency (WUE) of Amaranthus retroflexus, Chenopodium album and Atriplex sibirica were the highest in 78 species tested In different classification system, as far as Ph, Tr and WUE values are concerned, C 4 plant was higher than C 3 plant; dicotyledons were usually higher than monocotyledons; chenopodiaceae plant gave higher values than other plant family; annual and biennial forages were higher than others; plants in abandoned land gave better performance than other vegetation form The variance analyses indicated that difference significance levels of Ph are higher than those of Tr and WUE in every classification system |
| Keywords: | photosynthesis transpiration rate water use efficiency typical steppe grassland |
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