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Proceedings Paper

Comparison of photosynthesis, transpiration, and water use efficiency in two desert shrubs
Author(s): Ruyi Wei; Xiaoling Pan
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Paper Abstract

Photosynthesis and transpiration are the most important physiological activities for plants. They are closely related not only to photosynthesis active radiation (PAR), air temperature (Ta), relative humility (RH) and ambient CO2 concentration, but also to plant stomatal conductance and intercellular CO2 concentration. Their relationship can be analyzed through statistic methods to indicate plant eco-physiological ability bearing to environment. By means of measuring the photosynthesis of Haloxylon ammodendron and Reaumuria soongorica in the Sangonghe River valley we have dealt with similarities and differences of two species. Results show that net photosynthesis rate of Reaumuria soongorica is slight higher than Haloxylon ammodendron, but water use efficiency of Haloxylon ammodendron is evidently higher than Reaumuria soongorica. It suggests that Haloxylon ammodendron has strong bearing ability to drought in natural habitat.

Paper Details

Date Published: 14 July 2003
PDF: 5 pages
Proc. SPIE 4890, Ecosystems Dynamics, Ecosystem-Society Interactions, and Remote Sensing Applications for Semi-Arid and Arid Land, (14 July 2003); doi: 10.1117/12.466454
Show Author Affiliations
Ruyi Wei, Nanjing Institute of Meteorology (China)
Xinjiang Univ. (China)
International Ctr. for Desert Affairs (China)
Xiaoling Pan, Xinjiang Univ. (China)
International Ctr. for Desert Affairs (China)


Published in SPIE Proceedings Vol. 4890:
Ecosystems Dynamics, Ecosystem-Society Interactions, and Remote Sensing Applications for Semi-Arid and Arid Land
Xiaoling Pan; Wei Gao; Michael H. Glantz; Yoshiaki Honda, Editor(s)

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