陕西省涝灾的时空分布规律

Laws ofTemporal andSpatial Distribution of Waterloggihg in Shaanxi Province

分析了陕西省涝灾的时间分布特点；依据年均暴雨出现次数、年均大暴雨日数、历年各月一日最大降水量、年均连阴雨出现次数、西涝总月数及历年４～１０月最长连续降水日数等综合指标，揭示了陕西省涝灾的地域分异规律，为因地制宜防涝抗涝提供科学依据。

This paper analyses the features of temporal distribution of waterloggingand reveals the law of regional differentiation of waterlogging in Shaanxi Province basedon the integrated criteria including the number of torrential rain per year, the days ofheavy rainstorm per year,the highest precipitation of one day ,the number of cloudy orrainy weather for several days running per year , the total number of waterloggingmonths and the number of the longest continuous rainfall days from April to October,thus , providing the scientific base for waterlogging prevention and resistance in accor-dance with local conditions.