Climate, as a source of energy and water, acts as the primary control for forest ecosystems and forest ecosystems provide significant feedback to climate. Asian forests from taiga to tropical regions are very diverse and unique as compared with other continents. To establish a good forest monitoring system in times of climate change for Asian regions, it is necessary to monitor forest information from a national forest inventory to changes in species composition by air temperature increase. Furthermore, a global forest monitoring system has to be established. It is also recommended to monitor symbiotic relationships, traditional knowledge and valuation trends.