山地屏障与水汽通道综合作用初探——兼谈大香格里拉自然成因

在我国藏东南地区,东西走向的喜马拉雅山脉与南北走向的横断山脉相交,雅鲁藏布江、怒江和澜沧江穿流于其问,这种特殊的地形条件具有的屏障和水汽通道综合作用对降水分布和气候自然带分布带来特殊的影响.屏障作用阻挡了西南季风的暖湿气流,带来山脉两侧(南北向或东西向)降水和气候自然带分布的巨大差异;同时,在该区,山地屏障作用与水汽通道作用同时存在,两者综合作用形成了特殊的降水和气候自然带分布,为形成人类的理想天堂一大香格里拉地区做出了自然贡献.

Preliminary Studies on Both the Mountain Blocking and Moisture Passage Effects

There is a cross place between the Himalayas with a west-east direction and Hengduan Mountains with a north-south directions in which the Yarlung Zangbo River, Nu River and Lang Chang River are moving through it on the southeast part of the Tibet Plateau. As there is a special topography conditions, both of the mountain blocking and moisture passage effects on the distribution of precipitation, climatic and natural zones are obvious. The mountain blocking effects resist the warm and humid stream to make the great difference of the precipitation, climatic and natural zones between the two sides of the mountains. Meanwhile, both of the mountain blocking and moisture passage effects form the special distribution of precipitation, climatic and natural zones in this region, which make a great natural contribution for mankind of forming an ideal heaven.