Photosynthetic acclimation to enriched CO{sub 2} concentrations in Pinus Ponderosa
Conference
·
OSTI ID:282984
- California State Univ., Humbolt, CA (United States)
By the middle of the 21st century earth`s ambient CO{sub 2} level is expected to increase two-fold ({approximately}350 umol/L). Higher levels of CO{sub 2} are expected to cause major changes in the morphological, physiological, and biochemical traits of the world`s vegetation. Therefore, we constructed an experiment designed to measure the long-term acclimation processes of Pinus Ponderosa. As a prominent forest conifer, Pinus Ponderosa is useful when assessing a large scale global carbon budget. Eighteen genetically variable families were exposed to 3 different levels of CO{sub 2} (350 umol/L, 525 umol/L, 700 umol/L), for three years. Acclimation responses were quantified by assays of photosynthetic rate, chlorophyll fluorescence, and chlorophyll pigment concentrations.
- Research Organization:
- Lawrence Livermore National Lab., CA (United States)
- OSTI ID:
- 282984
- Report Number(s):
- UCRL-ID--114972-4; CONF-9505323--; ON: DE96006013
- Country of Publication:
- United States
- Language:
- English
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OSTI ID:52786
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Journal Article
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Thu Jun 01 00:00:00 EDT 1995
· Bulletin of the Ecological Society of America
·
OSTI ID:95870