Measurement of fluctuating irradiance in field studies of photosynthesis.

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http://hdl.handle.net/1975/9289

Citation

Acta Forestalia Fennica. 1984. 187: 1-56.

Title: Measurement of fluctuating irradiance in field studies of photosynthesis.
Author: Smolander, Heikki
Publisher: Suomen metsätieteellinen seura
Date: 1984
Language: en
ISSN: 0001-5636
URI: http://hdl.handle.net/1975/9289
Abstract: Measurements were made of temporal and spatial microvariations in irradiance in a small part of the canopy of a 20-yr-old Scots pine stand. Linear integration of the variations gave biased estimates; second order Taylor series approximations were satisfactory only for a low curvature response; two-point distribution approximations were applicable to high and low curvature response but presupposed that the mean and variance were known. It is suggested that a light measuring method in which first power (mean) and second power (variance) of irradiance are integrated resolves these problems; the method takes into account the geometry of the shoot and can also be used in transpiration studies.
Subject: measurement
transpiration
opinnäytteet
väitöskirjat
mänty
fotosynteesi
valo
vaihtelu
mittausmenetelmät
Pinus sylvestris
photosynthesis
light
variation
measurement


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