塔克拉玛干沙漠西部和南部沙尘暴的形成及危害

沙尘暴是发生在干旱半干旱地区的一种气象灾害 ,我国的西北地区是我国沙尘暴多发区 ,新疆又以塔里木盆地西部和南部频次最多 ,灾害造成的损失最大。盆地南缘的和田地区沙尘暴天气主要发生在 3 -6月 ,西缘沙尘暴天气主要发生在 4-6月 ,多年发生频次一般为每年1 0 -3 0次 ,多则达到每年 3 5次。塔里木盆地沙尘暴发生的频率如此之高 ,主要该地区有沙尘暴形成的气象条件 ,下垫面条件和环流条件。在新疆沙尘暴的危害是巨大的 ,如何减少其危害 ,改善塔里木盆地地区的生存环境 ,是我们关注的主要问题之一

The Form and Hazard of Sand-dust Storm in Western and Southern of Taklamagan Desert

Sand-dust storm is a kind of weather disaster that takes place in arid and semi-arid region.The frequency of sand-dust storm was high in the Northwest of China.There were many sand-dust storms in Southern and Western of Tarim Basin than other places of Xinjiang,and the damages were serious.Most of sand-dust storms occured during March to June in Hetian;In the western of Tarim Basin,the sand-dust storms mainly occured during April to June.The frequency was about 10-30+ time/year,the maximum frequency was about 35+ time/year, because the conditions of weather,ground and circumfluence were faverable for the occurence of sand-dust storm.The losses of sand-dust storms were serious,we must pay more attention to the issues of how to decrease the loss and ameliorate the living conditions of Tarim Basin.