太原春季沙尘天气特征分析

根据沙尘天气标准，对太原地区1961-2002年春季沙尘天气的基本特征进行了分析，给出了该地区春季沙尘的启动风速、沙源地、影响系统等研究结论，并对其年代际变化成因进行了初步探讨。指出42年来太原春季沙尘天气以浮尘、扬沙为主，且总体呈减少趋势，气候变化是引起沙尘年际和年代际变化的主要原因，植树种草是防治沙尘的重要措施。

Analysis on the Features of the Sand - dust Weather in Spring of Taiyuan

According to the standards of the san d -dust weather,this paper makes analysis on the fundamental characteristics of the sand -dust we ather in spring of Taiyuan Area in the period of 1961-2002,reaching the research conclusion of the initiate wind speed of the sand -dust weather in spring,the sand sources,and the influence s ystem,etc.of Taiyuan Area,and probes into the causes of their chronological variations,and points out that the flo ating dust and raising dust weathers,which are the dominant ones in spring of Taiyuan Ar ea in 42years,represent a reducing t rend overally,the climatic change is the main cause of the annual variations a nd chronological variations of the s and -dust weather,and planting trees and grasses is the main measure for controlli ng the sand -dust.