热带地理

›› 1986, Vol. 6 ›› Issue (1): 18-22.

• 论文 • 上一篇    下一篇

西双版纳的山地逆温

郭玉清, 钟绍怀   

  1. 云南省热带作物研究所
  • 出版日期:1986-01-30 发布日期:1986-01-30

THE MOUNTAIN TEMPERATURE INVERSION IN XISHUANGBANNA OF YUNNAN

GUO Yuqing, ZHONG Shaohuai   

  1. Tropical Crops Institute of Yunnan
  • Online:1986-01-30 Published:1986-01-30

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被引次数

5

摘要： 西双版纳是衷牢山以西的辐射型降温地区(辐射型降温占全部降温总数的81%).这里因有北部和西北部高山的层层阻挡,为全国少有的静风区,高层又受强劲干热的西风急流所控制,在此双重作用下,旱季多以晴天为主.在晴朗无云、静风或微风的夜间,下垫面强烈辐射冷却,冷而重的空气沿山坡下滑,沉积于谷底或坝子,暖而轻的空气被抬升,形成下冷上暖的逆温层.这种冷湖式的逆温层称为山地逆温,周高中低的盆地盛的不是水而是冷空气.西双版纳山地逆温是难能宝贵的气候资源,对于提高热作上限,发展山区经济有特殊的意义.

Abstract: In Xishuangbanna, take Atuzhai village for example, obvious mountain temperature inversion occurs during the dry season, which lasts for six months. On an average, inversion days amounts to a number of 84 on the south slope and 102 on the north one. The maximum frequency and intensity of inversion occurs in the period from February to April in the dry season, during which the maximum frequency is higher than 70 percent on both slopes, and the mean intensity is +0.4℃/100m on the south slope, and +1℃/100m on the other.