摘要
利用浙中东部沿海地区的历史旱涝灾害史料,归纳为旱年、涝年、旱涝年三种基本类型.并分别讨论各型灾年的基本特征.将其灾害序列划分为若干历史阶段,发现目前该地正处在近1200年来,旱涝灾害最频繁的历史阶段内.统计结果,旱涝灾害年频数与太阳黑子相对数和反厄尔尼诺存在显著的相关性.
The records of flood and drought catastrophes in the local histories over the middle-east coastal area of
Zhejiang Province have been used. Three types of catastrophe year,which are flood year, drought year and
flood-drought year,are definded and their basic features are indicated and discussed. The time sequence of the
catastrophes has been divided into some historical stages. It has been discovered that the area during present
period is in a stage with frequent occurrence of the flood and drought catastrophes. On other aspect, it is
showed from the statistical result that the catastrophe frequency is significantly correlated to the relative
number of the sunspot and LaNina.
出处
《科技通报》
1992年第4期213-218,共6页
Bulletin of Science and Technology
基金
浙江省自然科学基金资助项目
关键词
旱涝灾害
太阳黑子
浙江
drought
catastrophe
historical stage
sunspot
Zhejiang
