Development of desertification Indicators (2)—Desertification map of Asia—

Abstract

It is important to establish scientific methodology to monitor and assess desertification status. The objective of this study is to develop regional desertification monitoring methodology. CASA model to estimate NPP (net primary productivity) was modified and adjusted to arid areas by our own results of field investigation. Chikugo model was used to estimate climatologically potential NPP. By comparison of actual NPP using modified CASA model and climatologically potential NPP using Chikugo model, vegetation degradation areas in Asia for the year of 2000 could be mapped. We could detect areas with vegetation degradation by objective methodology.