摘要
通过对郑州市代表性水文气象站数据以及土地利用情况的分析,探讨了温度和土地利用变化对郑州市城市降水的影响.利用水文变异诊断系统对郑州市1951—2008年温度、降水量进行了年变异分析和季度变异分析;对1988年、2001年和2008年郑州市土地利用情况进行了对比分析.结果表明:随着城市化进程的不断发展,郑州市年均温度呈升高趋势,年均降水量呈微弱减少趋势,四季降水量变化明显,春季干旱、夏季洪涝更容易出现,降水量、温度波动明显,极端水文事件出现频率增大,旱涝频次增加,强度加大.
Through analyzing the data from the typical hydro-eteorological station and lan d use in Zhengzhou,the influence of two factors on urban rainfall in Zhengzhou was probed.The annual and quarter variation analysis on temperation and precipi tation data in Zhengzhou from 1951 to 2008 were done,land use data of Zhengzhou in 1988 and 2000 and 2001 were contrastively analyzed.The results show that wi th the development of city,the annual average temperature in Zhengzhou has rise n,and the annual average precipitation presents a faint decline trend,the prec ipitation change of four seasons is obvious,these phenomena arise easily,such as spring drought and summer flood,the variation of temperation and precipitati on is obvious,the frequency of extreme hydroligic affairs go up,the frequency a nd the strengthen of flood and drought gains.
出处
《华北水利水电学院学报》
2011年第3期11-14,共4页
North China Institute of Water Conservancy and Hydroelectric Power
基金
水利部公益性行业科研专项经费项目(200801001)
