9Maki, M., M. Ishiahra, and M. Tamura, Estimation of leaf water status to monitor the risk of forest fires by using remotely sensed data[J]. Remote Sensing of Environment, 2004,90(4): 441-450.
10Castro, F.X., A. Tudela, and M.T. Sebastia, Modeling moisture content in shrubs to predict fire risk in Catalonia (Spain) [J]. Agricultural and Forest Meteorology, 2003, 116(1-2): 49-59.