简述了唐山市的自然条件、历史旱灾情况及干旱类型;应用长系列降水资料及调查数据分析了唐山市旱灾具有季节性、连续性、周期性、地域性等特点;从自然因素和人为因素2个方面阐述了唐山市旱灾的成因.%The natural condition. past drought hazards and drought types of Tangshan City were briefly introduced. And then a long series on rainfall and survey data were adopted to analyze the scasonal,continual, periodic and regional features of the drought in Tangshan City.At last the causes of the drought were expounded from the natural and humanistic factor.
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