全球变暖将使气象防灾减灾面临新的和更大的挑战。在全球变暖背景下干旱、洪涝、热浪、沙尘暴等极端天气气候事件将频繁发生,我国北方旱灾将继续扩大,干旱发生频率和强度将增加。而引发森林火灾的自然因素中,高温、干旱少雨是其主要原因之一。持续干旱少雨天气会导致森林火险等 Global warming will make meteorological disaster prevention and reduction face new and greater challenges. In the context of global warming, extreme weather and climate events such as drought, floods, heat waves and dust storms will occur frequently. The drought in northern China will continue to expand, and the frequency and intensity of drought will increase. Among the natural factors causing forest fires, high temperature and drought are one of the main reasons. Continuous dry weather will lead to fire and other fires