The characteristics of interdecadal variation of high-risk forest-fire periods in spring in Heilongjiang Province are analyzed by using the observation data from 29 stations of Heilongjiang Province from 1961 to 2006.

Study on climatie characteristics of forest in Gansu and the its connection with forest fire danger;

Change trends of forest fire danger in Yunnan Province in 1957-2007.

Forest fire danger rating was classified according to spring, summer and autumn by the fuzzy cluster method.

Forecast of weather grade in forest fire risk and application of fire monitoring;

The Forecasting System of Forest Fire Weather Scale in Dongying;

The rank index of forest fire forecast is introduced in the paper.

Based on the relationship between forest fire and weather conditions,many kinds of forest fire danger weather indexes are developed to estimate and predict the possibility of ignition, fire intensity and spread,as well as the difficulty of wildfires control.

Meanwhile, fire danger analysis has been done for Guangzhou district in 2001-2002 fire seasons.

The paper gives a brief description about the current main forest fire danger rating systems in the world,which include Forest Fire Danger Rating system used in Canada,USA,Australia,and other countries.