摘要
利用 CI- 30 1 PS便携式光合作用测定仪 ,CI- 2 0 3手持式激光叶面积测定仪对濒危植物半日花和四合木进行了光合、蒸腾等生理生态学指标的测定。揭示了 2种荒漠植物的生理生态学特征 ,并探讨了其对干旱生态环境的适应机制。分析表明 ,2种植物都是通过减少叶面积、降低蒸腾、减缓新陈代谢活动来抵御干旱、高温的自然环境。
Helianthemum songaricum and Tetraena mongolica are relic desert species of tertiary and endangered,distribute in West Erdos,Inner Mongolia.In this paper,net photosynthesis,transpiration and some other physical ecology data of these two plants were measured with CI 301 photosynthesis system and CI 203 laser leaf area system.Physical ecology characters of two plants were discover,and the adaptation mechanism to dry,high temperature environment were discussed.As a result,all these two desert plants resistant dry,high temperature by release leaf area,lower transpiration and photosynthesis.
出处
《西北植物学报》
CAS
CSCD
2001年第1期184-187,共4页
Acta Botanica Boreali-Occidentalia Sinica
基金
国家自然科学基金资助项目(39760008)
关键词
半日花
四合木
生理生态
特征
Helianthemum songaricum
Tetraena mongolica
physical ecology
characters
