| アイテムタイプ |
default_学術雑誌論文 / Journal Article(1) |
| タイトル |
|
|
タイトル |
Use of light response curve parameters to estimate gross primary production capacity from chlorophyll indices of global observation satellite and flux data |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
CIgreen |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Eddy covariance flux |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
GPP |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Light response curve |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
MODIS |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Rectangular hyperbola equation |
| 資源タイプ |
|
|
資源タイプ識別子 |
http://purl.org/coar/resource_type/c_6501 |
|
資源タイプ |
journal article |
| アクセス権 |
|
|
アクセス権 |
metadata only access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_14cb |
| 著者 |
村松 加奈子
Yoneda Emi
Soyama Noriko
López-Ballesteros Ana
Thanyapraneedkul Juthasinee
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
The photosynthetic rate has a nonlinear relationship with PAR during the day. We previously developed an algorithm for estimating GPP capacity, which is defined GPP under low-stress condition, using light response curves (LRCs). In this study, we studied the characteristics of LRC parameters of the initial slope and the maximum gross photosynthesis rate (Pmax), and formulas to calculate Pmax from the relationship between the chlorophyll index of the green and near-infrared (NIR) bands (CIgreen) and the GPP capacity at PAR = 2000 μmol m−2 s−1 (GP2000) for nine vegetation types spanning tropical to subarctic climates on the Eurasian and North American continents using eddy covariance flux measurements and Moderate Resolution Imaging Spectrometer (MODIS) data. The slope of the relationship between CIgreen and GP2000 was highest for sites dominated by herbaceous plants such as open shrubland, savanna, and cropland (rice paddy); it was lower at sites dominated by woody plants. The yearly GPP/GPP capacity ratio was close to one in flux data. When the method was applied to satellite data, the daily GPP capacity exhibited a similar seasonal pattern to that of the Flux GPP and MODIS GPP products. Under high dryness conditions, Flux GPP showed the drop from the GPP capacity estimated from CIgreen and diurnal PAR data around noon, and they were nearly identical during the early morning and late afternoon. The instantaneous GPP capacity could be considered the baseline of the instantaneous GPP with stress-free conditions and important for quantifying midday depression at the sub-day scale. |
|
言語 |
en |
| 書誌情報 |
en : Science of Remote Sensing
巻 10,
p. 100164,
発行日 2024-12-01
|
| 出版者 |
|
|
出版者 |
Elsevier |
|
言語 |
en |
| ISSN |
|
|
収録物識別子タイプ |
ISSN |
|
収録物識別子 |
2666-0172 |
| DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
10.1016/j.srs.2024.100164 |
| 権利 |
|
|
権利情報 |
© The Authors. |
|
言語 |
en |
https://doi.org/10.1016/j.srs.2024.100164
