中国沙尘暴时空特征及人类活动对其发展趋势的影响  

TEMPORAL AND SPATIAL CHARACTERISTICS OF SANDSTORM IN CHINA AND THE INFLUENCES OF HUMAN ACTIVITIES ON ITS DEVELOPMENT TREND

作　　者：胡金明[1] 崔海亭[1] 唐志尧[1] 

机构地区：[1]北京大学城市与环境学系,北京100871

出　　处：《自然灾害学报》1999年第4期49-56,共8页Journal of Natural Disasters

摘　　要：分析了近５０年来我国沙尘暴天气的时空分布特征和历史时期以来我国沙尘暴天气的发展趋势。在分析沙暴天气发生机理的基础上，着重探讨了人类活动对我国沙尘暴天气发展趋势的影响。This paper firstly analyzes the temporal and spatial characteristics of sandstorm in China,and its development trend. Based on the analyses about the occurring mechanism, the authors fully deal with the influences of human activities on development trend of sandstorm in China. At last, the paper points out that, with the increment of population and the intensity of unreasonable land utilization,human activities have became an important factor which led to the increasing of the frequencies ofsandstorm.

关 键 词：沙尘暴 时空特征 发展趋势 人类活动 风沙流 

分 类 号：P425.55[天文地球—大气科学及气象学]