# A note on estimating the mean level of photosynthesis from radiation measurements

- Authors
- Journal
- Agricultural and Forest Meteorology 0168-1923
- Publisher
- Elsevier
- Publication Date
- Volume
- 40
- Issue
- 2
- Identifiers
- DOI: 10.1016/0168-1923(87)90008-6
- Disciplines

## Abstract

Abstract A number of approximate formulae for the calculation of mean photosynthesis from light intensity measurements over a period of time are derived. If the parameter measuring the convexity of the photosynthesis-light intensity curve approaches unity, a particularly simple formula containing the mean light level is obtained. For low radiation intensities the mean as well as the variance of the light level is important. In general it is recommended that means calculated from a somewhat more complicated but exact algebraic formula be used — a straightforward procedure if a computer is available.

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