西北农牧交错带千年时间尺度中强沙尘暴序列的建立与分析

Construction and Analysis on Middle-Severe Dust-Storms in Agricultural and Pasturing Interlaced Zone of Northwest China

本文利用公元前205年～公元2000年的文史资料记载,并参考1954年～2000年气象实测资料,在千年时间尺度上建立了西北黄土高原地区农牧交错带中强沙尘暴发生序列,并初步分析了该区中强沙尘暴的时空分布特征和年际变化.通过时间序列分析阐述了沙尘暴发生、发展规律,对沙尘暴的研究和防治决策具有重要的意义.

Based on the available original duststorms data from 205BC-2000AD historical materials and observation information in a long range , the research constructed a quite complete series of middle severe dust-storms occurred in agricultural and pasturing interlaced zone of northwest China. At the same time , the temporal and spatial distribution characteristics of middle severe dust storms have also been analyzed.