我国是世界上自然灾害最严重的少数国家之一,灾害种类多,发生频率高,灾变强度大,影响范围广,成灾比率高。因各种灾害所遭受的直接经济损失,约占国民经济收入的1/5—1/8。 1.气象灾害我国大陆地处中纬度,南北跨越50个纬度,西为世界最高的高原,东濒气球最大的 China is one of the few countries in the world with the most serious natural disasters. There are many kinds of disasters, with high frequency of occurrence, large catastrophic intensity, wide impact range and high disaster-hit rate. The direct economic losses suffered from various disasters account for about 1/5 to 1/8 of the national income. 1. Meteorological Disasters Mainland China is located in the mid-latitude, north and south across 50 latitudes, the West is the highest plateau in the world, east of the largest balloon