Photosynthesis and biomass of chaparral shrubs along a fire-induced age gradient in southern california
Photosynthetic rates were measured in Ceanothusgreggii Gray and Adenostoma fasciculatum H and A to determine change in productivity along a fire- induced age gradient in southern California. In general C. greggii had higher rates of CO2 uptake than did A. fasciculatum. The strongest differences in photosynthesis were measured during February 1982. The variations were not as pronounced in May, August, or February 1983 when generally lower photosynthetic rates in C. greggii and A. fasciculatum are similar and do not decrease significantly in older stands along a fire-induced age gradient. Standing biomass and foliage projective cover decreased in stands older than 40 years. Data from this research will allow a better understanding of the physiological mechanisms leading to senescence in chaparral shrubs. Ó 1993 Taylor & Francis Group, LLC. © 1984 Taylor & Francis Group, LLC.
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- Plant Biology & Botany
- 0607 Plant Biology
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Published In
DOI
ISSN
Publication Date
Volume
Issue
Start / End Page
Related Subject Headings
- Plant Biology & Botany
- 0607 Plant Biology