前言中国热带地理范围,各说不一,大体上约在北纬23°30′以南,西从云南起,经广西、广东南部以至台湾的南部,包括南海诸岛,境内地形复杂,多山地、丘陵、台地和盆地,个别山峰可达1500—2400米以上。气候属热带季风型,冬季虽有内陆干旱空气影响,但夏季有海洋带来的大量湿气,东部热带地区又有台风带来的暴雨,使我国热带虽处在环球干燥带上,但境内没有形成沙漠或极干旱的地区。我国热带地区比同纬度的热 Foreword China’s tropical geography range varies from roughly the south of latitude 23 ° 30’NW. From west Yunnan to southern part of Guangxi, southern part of Guangdong and even to the south of Taiwan, including the South China Sea islands, the terrain is complicated and mountainous, Hills, terraces and basins, individual peaks up to 1500-2400 meters above. The climate is a tropical monsoon type. Although winter has the influence of inland arid air, there is a lot of moisture in the summer and torrential rains brought by the typhoon in the eastern tropical regions. Although the tropics in our country are on the global dry belt, No desert or very arid areas formed. The heat in the tropics of our country is higher than that of the same latitude