A study on design of early warning decision support system of desertification

Abstract

At present, the study on the slowly varying monitoring and early warning system is not perfect at home and abroad. In this paper, desertification database, knowledge base and model base are designed in details and the future evolution of the desert is predicted by the desertification early warning system. The results show that correct rate of simulated distribution of desertification reaches over 90 % in the study area. And 'Auto Set Sand instrument - Monitoring Platform' can conduct sand data analysis at anytime. In addition, the WebGIS based system provides necessary decision support for the government. © 2013 Springer-Verlag.