摘要
基于图谱的思想对中国 194 9— 1998年水灾的县域分布进行了研究 ,通过各年全国水灾受灾县域分布的系列成图后 ,寻找水灾空间分布上的年际变化规律及其在时间序列上的共同特征 .并尝试性地提出了 6种水灾的空间分布类型图谱 ,即全国型、分散型、北方型、东部型、东南型和西北 东南型 ,以及南北移动型、东西摆动型、分散集中型和分散 集聚 集聚型等 4种水灾年际分布变化类型图谱 ,为水灾预测研究提供了一种新的思路 .
On the basis of tupu theory attention is, focused on the distribution of floods in China from 1949 to 1998 based on county unit. Thematic maps are created to display the spatial changes and common spatial features of the flooding time series. Six spatial distribution types of flood disaster are put forward. They are Whole-country distribution, Separate distribution, North distribution, East distribution, South-east distribution and Northwest-Southeast distribution. Four changing patterns are also put forward. They are North-South shift, East-West switch, Separate-concentrate and Separate-concentrate-concentrate. The tupu of the six spatial patterns and four changing patterns may provide a new way for flood disaster forecasting.
出处
《北京师范大学学报（自然科学版）》
CAS
CSCD
北大核心
2001年第5期690-696,共7页
Journal of Beijing Normal University(Natural Science)
基金
国家自然科学基金重大资助项目 ( 3 98993 74 )
高等学校骨干教师资助计划项目
关键词
中国
水灾
图谱
分布类型
floods in China
tupu
types of flood distribution
