人民黄河Issue(5)：31-33,3.DOI:10.3969/j.issn.1000-1379.2014.05.011
降水不均匀变化对红碱淖面积的影响
Influence of the Hongjiannao Lake’s Variation on the Discontinuity Precipitation Changes
摘要
Abstract
Based on the precipitation data of Zhongji Rainfall Station from 1977 to 2008 ,this paper established the precipitation Gini coefficient model to analyze precipitation Gini coefficient changing pattern under the different precipitation years,combining with the Hongjiannao area change trend,the effect of uneven precipitation distribution on Hongjiannao area was analyzed. The results show that:a)the 32-year mean Gini coefficient of precipitation temporal distribution from 1977 to 2008 is 0. 445 2,and the annual precipitation has some negative correlation with the Gini coeffi-cient of precipitation. In other words,the Gini coefficient of precipitation is rather on the high side in dry years,lower in wet years,and the Gini coefficient of precipitation above and below the mean in other hydrological years;b)precipitation becomes one of the important factors affected the area distribution of Hongjiannao Lake by the uneven distribution of precipitation,which increases the amount of water resources of Hongjiannao Lake in dry hydrological years,and abates the amount of water resources in wet hydrological years;c)to be compared with curve of typeⅡ,the curve of typeⅠwhich has a higher proportion of the precipitation,should have stronger stability and more conducive to the stability of Hongjiannao area.关键词
基尼系数/降水年型/面积变化/不均匀变化/降水/红碱淖Key words
Gini coefficient/precipitation year/change of area/discontinuity change/precipitation/Hongjiannao Lake分类
农业科技引用本文复制引用
白乐,李怀恩,何宏谋,李皓冰..降水不均匀变化对红碱淖面积的影响[J].人民黄河,2014,(5):31-33,3.基金项目
“十二五”国家科技支撑计划项目（2012BAB02B04）；中央分成水资源费资助项目（1261220162511）。 （）
