水土保持研究2017，Vol.24Issue(5)：222-226,5.
关中地区降水特征及其对旱涝灾害的影响
Characteristics of Precipitation and Its Influence on Drought and Flood Disaster in Guanzhong Area
摘要
Abstract
In order to reduce drought and flood disaster losses caused by the precipitation in Guanzhong area,based on the precipitation data of each city in Guanzhong area during 30～60 years,the Z index of precipitation in this region was analyzed by mathematical statistics and Mann-Kendall mutation test and the influence of precipitation on flood disaster in Guanzhong area was studied.The following conclusions are drawn.(1) The precipitation was relatively rich and had a large range which was prone to cause drought and flood disasters,and the years of drought and flood disasters accounted for 41.33％ of the sequence.The years and annual distribution of drought and flood were basically the same,but the regional distribution was not same among the regions.(2) There was a drought tendency in the winter and spring,and drought was more serious.On the contrary,drought showed an increasing trend summer and autumn,however,drought and flood disasters were easy to occur and frequent.(3) The variation of flood and drought appeared alternately,but the overall trend was toward the direction of the development of drought.This study can provide a scientific basis for the prevention and control of flood and drought in Guanzhong area.关键词
关中地区/Mann-Kendall突变检验/Z指数/降水特征/旱涝灾害Key words
Guanzhong area/Mann-Kendall mutation testing/Z index/precipitation characteristic/drought and flood disaster分类
天文与地球科学引用本文复制引用
张奇莹,徐盼盼,钱会..关中地区降水特征及其对旱涝灾害的影响[J].水土保持研究,2017,24(5):222-226,5.基金项目
水利部公益性行业科研专项经费项目“渭河中下游干旱预警与应急水源配置”(201301084) （201301084）
