Construction of a resource model for in East Asia with emphasis on human activities.

建立了一个高分辨率(0.5°×0.5°网格)的东亚陆地生态系统模式。将结果与全国人口密度和人类活动进行比较。明确了日本、中国和印度目前的P/R比已低于1.0，导致21世纪温室气体排放量增加。在这三年中，我们同时进行了现场观测，并结合稳定同位素方法、卫星遥感和模拟，对上述结论进行了修正。

A terrestrial ecosystem model was developed for East Asia with high resolution (0.5°×0.5°grid size). Results were compared with nationwide population density and human activities. It was clarified that P/R ratio has become lower than 1.0 at moment in Japan, China and India resulting an increase in emission of green house gases in the 21 century.During this three years the field observations together with the stable isotope methods, satellite remote sensing, and modeling were conducted simultaneously to refine the above mentioned conclusions.