Abstract:
:In five California evergreen trees and shrubs cooccurring in this study but most common in habitats of different moisture availability, leaf nitrogen was a major determinant of photosynthetic capacity. Within each species, stomatal conductance was highly correlated with photosynthetic capacity, resulting in little variation in the concentration of CO2 in the intercellular spaces. Among species, intercellular CO2 concentrations varied significantly. Under controlled conditions, the leaves that realized the highest photosynthesis per unit of leaf nitrogen tended to realize the lowest photosynthesis per unit of water transpired. The ratio of photosynthesis to transpiration, an instantaneous measure of intrinsic water-use efficiency, was highest in the species commonly found in the direst habitats and lowest in the species most common in the wettes habitats.
journal_name
Oecologiajournal_title
Oecologiaauthors
Field C,Merino J,Mooney HAdoi
10.1007/BF00376856subject
Has Abstractpub_date
1983-12-01 00:00:00pages
384-389issue
3eissn
0029-8549issn
1432-1939pii
10.1007/BF00376856journal_volume
60pub_type
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