LIU Xu,LI Nan,XI Xiao-tong,et al.Distribution of Precipitation and Analysis of Drought-flood in the Liaocheng Area[J].HEILONGJIANG AGRICULTURAL SCIENCES,2017,(08):21-25.[doi:10.11942/j.issn1002-2767.2017.08.0021]
聊城地区降水变化及旱涝特征分析
- Title:
- Distribution of Precipitation and Analysis of Drought-flood in the Liaocheng Area
- 文章编号:
- 1002-2767(2017)08-0021-05
- 分类号:
- P426.616
- 文献标志码:
- A
- 摘要:
- 依据1962-2015年的气象观测数据,采用线性分析、突变检验、标准化降水指数(SPI)等方法,探讨了聊城地区降水量的时空变化和旱涝灾害特征。结果表明:聊城地区年平均降水呈现不明显下降趋势,季节降水中,春季降水呈现增加趋势,其余各季呈现不明显的下降趋势。聊城市旱涝交替发生,变化具有阶段性特征,1962-1970年、1981-1990年、2011-2015年以干旱为主,1971-1981年、2001-2010年以雨涝为主,经历了旱-涝-旱涝-旱的变化过程。3个区域旱涝变化与全区总体上较为一致。
- Abstract:
- Based on the meteorological observation data from 1962 to 2015,using linear analysis,mutation test,the standardized precipitation index (SPI) and other methods,the precipitation and drought and flood disasters in Liaocheng region from the change of time and space were discussed.The results showed that the average annual rainfall in Liaocheng region presented the downward trend but not obviously,spring precipitation showed a trend of increase,the rest of the season presented the not obviously downward trend.In Liaocheng,drought and flood occurred alternately,the change had periodic characteristic,1962-1970,1981-1990,2011-2015 was droughtdominated,1971-1981,2001-2010 was waterlogging dominated,drought and flood occurred alternately.The drought and flood change of three study areas were relatively consistent with the whole area.
参考文献/References:
相似文献/References:
[1]亢晋霞,张 顶,李东明,等.克山县近30年旱涝灾害分析[J].黑龙江农业科学,2012,(12):27.
KANG Jin-xia,ZHANG Ding,LI Dong-ming,et al.Drought and Flood Disaster Analysis of Keshan County Nearly 30 Years[J].HEILONGJIANG AGRICULTURAL SCIENCES,2012,(08):27.
备注/Memo
收稿日期:2017-06-08