2024-03-29T06:04:39Z
https://nagoya.repo.nii.ac.jp/oai
oai:nagoya.repo.nii.ac.jp:00005359
2023-01-16T03:53:46Z
643:666:667
Dependence of stomatal conductance on leaf chlorophyll concentration and meteorological variables
Matsumoto, Kazuho
Ohta, Takeshi
Tanaka, Takafumi
open access
chlorophyll concentration
Jarvis-type model
physiological property
seasonal change
stomatal conductance
We examined the dependence of stomatal conductance on physiological properties and meteorological variables using a Jarvis-type stomatal conductance model that included a function representing leaf chlorophyll concentration as a physiological property. We sampled the leaves of 5- and 10-year-old Quercus serrata trees. A low leaf chlorophyll concentration imposed a restriction on the opening capacity of the stomata. The stomatal conductance variability depended markedly on chlorophyll function; the degree of dependence was almost equal to that on solar radiation or vapour pressure deficit. The characteristics of stomatal conductance response to meteorological or physiological changes exhibited little seasonal variation (except relative to temperature). Stomatal conductance variability depended on the following meteorological parameters in decreasing order: radiation, vapour pressure deficit, leaf temperature, and soil moisture; this order did not vary seasonally. The dependence of stomatal conductance variability on the seasonal change in chlorophyll concentration was larger in spring and autumn than in summer. These results indicate that the consideration of seasonal changes in plant physiological properties is important in evaluating the water, energy, and CO2 cycles between plants and the atmosphere.
Elsevier
2005-09
eng
journal article
VoR
http://hdl.handle.net/2237/6964
https://nagoya.repo.nii.ac.jp/records/5359
https://doi.org/10.1016/j.agrformet.2005.07.001
0168-1923
Agricultural and Forest Meteorology
132
1-2
44
57
https://nagoya.repo.nii.ac.jp/record/5359/files/AFM_matsumoto_2005_final.pdf
application/pdf
469.0 kB
2018-02-19