論文

査読有り
2011年9月

Validation of a Crop Yield and CO2 Fixation Model over Southeast Asia by Carbon Partitioning in Grain Plants

JOURNAL OF THE INDIAN SOCIETY OF REMOTE SENSING
  • Daijiro Kaneko
  • ,
  • Peng Yang
  • ,
  • Toshiro Kumakura

39
3
開始ページ
297
終了ページ
306
記述言語
英語
掲載種別
研究論文(学術雑誌)
DOI
10.1007/s12524-011-0096-0
出版者・発行元
SPRINGER

A photosynthetic-sterility model for grain production monitoring has been developed and validated under the background of climate change and Asian economic growth in developing countries. This paper presents an application of the model to evaluate carbon-fixation rates in yields of paddy rice, winter wheat, and maize in Asia. The validation of the model is based on carbon partitioning in grain plants. The carbon hydrate in grains has the same chemical formula as that of cellulose in grain vegetation. The partitioning of carbon in plants can validate fixation amounts of computed carbon using a satellite-based photosynthesis model. The model estimates the photosynthesis fixation of rice reasonably in Japan and China. Results were validated through examination of carbon in grains, but the model tends to underestimate results for winter wheat and maize. This study also provides daily distributions of the PSN, which is the CO2 fixation in Asian areas combined with a land-cover distribution classified from MODIS data, NDVI from SPOT VEGETATION, and meteorological re-analysis data by European Centre for Medium-Range Forecasts (ECMWF). The mean CO2 and carbon fixation rates in paddy areas were 25.92 (t CO2/ha) and 5.28 (t C/ha) in Japan, respectively. Comparisons between the model's values and MODIS seasonal PSNs show similar trends. The writers are preparing to compare computed photosynthesis rates with observed AsiaFlux data for the validation of this model at field sites of paddy, grassland and forests in Japan and Asian countries.

Web of Science ® 被引用回数 : 1

リンク情報
DOI
https://doi.org/10.1007/s12524-011-0096-0
Web of Science
https://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcAuth=JSTA_CEL&SrcApp=J_Gate_JST&DestLinkType=FullRecord&KeyUT=WOS:000296518200003&DestApp=WOS_CPL
ID情報
  • DOI : 10.1007/s12524-011-0096-0
  • ISSN : 0255-660X
  • Web of Science ID : WOS:000296518200003

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