Development of a new model of a light environment and canopy photosynthesis based on detailed three dimensional canopy structure and sun-induced chlorophyll fluorescence

2015 Fiscal Year Final Research Report

• Project/Area Number: 25281014
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Environmental dynamic analysis
• Research Institution: Japan Agency for Marine-Earth Science and Technology
• Principal Investigator: KOBAYASHI Hideki 国立研究開発法人海洋研究開発機構, 地球表層物質循環研究分野, 主任研究員 (10392961)
• Co-Investigator(Kenkyū-buntansha): INOUE Tomoharu 国立研究開発法人海洋研究開発機構, 地球表層物質循環研究分野, ポストドクトラル研究員 (20608822) ; ICHII Kazuhito 国立研究開発法人海洋研究開発機構, 地球表層物質循環研究分野, 主任研究員 (50345865) ; NAGAI Shin 国立研究開発法人海洋研究開発機構, 地球表層物質循環研究分野, 主任研究員 (70452167) ; YANG Wei 国立大学法人千葉大学, 環境リモートセンシング研究センター, 特任助教 (80725044)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: リモートセンシング / 陸域生態系モデル / 植物生理生態 / 炭素循環 / 三次元計測

Outline of Final Research Achievements

In this study, we developed a new three dimensional sun-induced chlorophyll fluorescence emission model. The three dimensional forest structure information was collected by the terrestrial LiDAR measurements of the trees in the field site. The collected data were used as input data of the developed model. With this newly developed model, the simulated global patterns of sun-induced chlorophyll fluorescence were evaluated. This study also quantified the applicability and limit of the developed model. Satellite measurement of the global sun-induced chlorophyll fluorescence is one of the upcoming and encouraging variables to make better understanding in the global terrestrial photosynthesis estimation. The new model will contribute to the improved understanding of the relationship between satellite-based sun-induced chlorophyll fluorescence measurements and leaf- and canopy-scale photosynthesis.

Free Research Field

陸域リモートセンシング