Carbon partitioning as validation methods for crop yields and CO2 sequestration monitoring in Asia using a photosynthetic-sterility model
文献类型: 外文期刊
第一作者: Kaneko, Daijiro
作者: Kaneko, Daijiro;Yang, Peng;Kumakura, Toshiro
作者机构:
关键词: photosynthesis;yield;monitoring;modeling;validation;carbon partitioning;rice;remote sensing
期刊名称:REMOTE SENSING FOR AGRICULTURE, ECOSYSTEMS, AND HYDROLOGY XII
ISSN: 0277-786X
年卷期: 2010 年 7824 卷
页码:
收录情况: SCI
摘要: Sustainability of world crop production and food security has become uncertain. The authors have developed an environmental research system called Remote Sensing Environmental Monitor (RSEM) for treating carbon sequestration by vegetation, grain production, desertification of Eurasian grassland, and CDM afforestation/reforestation to a background of climate change and economic growth in rising Asian nations. The RSEM system involves vegetation photosynthesis and crop yield models for grains, including land-use classification, stomatal evaluation by surface energy fluxes, and daily monitoring for early warning. This paper presents a validation method for RSEM based on carbon partitioning in plants, focusing in particular on the effects of area sizes used in crop production statistics on carbon fixation and on sterility-based corrections to accumulated carbon sequestration values simulated using the RSEM photosynthesis model. The carbonhydrate in grains has the same chemical formula as cellulose in grain plants. The method proposed by partitioning the fixed carbon in harvested grains was used to investigate estimates of the amounts of carbon fixed, using the satellite-based RSEM model.
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