Of land , south and east of lake balkhash , to russia belongs to kazakhstan and kyrgyzstan nowadays 的土地现在属于哈萨克和吉尔吉斯。
2.
Abstract : monthly rainfall data from 1951 to 1995 for june , july and august in 13 meteorological stations of the north china were used for accounting z index and discussing serious flood and drought featureas in these months . serious flood mainly happened in july and august , and sevious drought mainly happened in august . there were more flood in 1950 ' s to 1960 ' s and more drought since 1970 ' s in the north china . meanwhile , the deeper trough which covered the regions from the ural mts . to the balkhash lake play an important role in serious rainstom in rainy season in the north china . there often happened serious flood ( drought ) when the northwester pacific subtropical high was by west and north ( east and south ) , and the sea surface temperature in the equatorial central and eastern pacific was mainly in dropping ( raising ) stage 文摘:利用华北平原地区的13个站点, 45年（ 1951 1995 )的降水资料,对夏季4个时段（ 6月、 7月、 8月、 6 8月）进行了z指数计算,确定了该地区各个时段的严重涝年和严重旱年.发现华北地区雨季的严重洪涝主要集中在7 , 8月,严重干旱则主要发生在8月,并可明显看出由50 60年代的多水期向70年代中期以后的少水期的转变,另外,乌拉尔山到巴尔喀什湖附近的低压槽加深和西北太平洋副热带高压的北抬,对华北地区雨季持续性暴雨的产生起着决定性的作用.严重洪涝年的夏季（ 6 8月） ,西北太平洋副热带高压偏西、偏北,赤道东太平洋海温多处于下降阶段;严重干旱年西北太平洋副高偏东、偏南,赤道东太平洋海温则处于上升阶段
3.
All the turn - point year is around 1974 . another feature of interdecadal variability of interannual relationship between winter sea - ice extent of davis strait and summer , july and august rainfall of 160 stations is that the interannual correlation pattern have changed from east - west pattern to " + - + " north - south pattern around 1974 . the interdecadal characteristics of correlation distribution pattern of interannual relationship between winter sea - ice extent of davis strait and summer , july 500hpa height of northern hemisphere are : " - + - " pattern from the beginning of novoya zemlya island , by way of balkhash lake to japan sea which is strongly negatively correlated with the rainfall of north china at the same period before 1974 and " + - " pattern from the beginning of ural mountains , by way of bujr lake to hetao basin which is badly correlated with the rainfall of north china at the same period after 1974 冬季戴维斯海峡海冰面积与华北夏季及7 、 8月降水年际关系有明显的年代际变化特征：其与夏季总降水的年际关系由1974年前较好的负相关在1974年后变差，与7月降水的年际关系由1974年前较好的负相关在1974年后变弱，与8月降水的年际关系由1974年前较好的负相关在1974年后变差；另一方面，其与中国160站夏季及7 、 8月降水的年际关系在1974年前后发生变化的主要特征是：与夏季总降水、 7月、 8月降水的年际关系由1974年前的相关系数分布呈“东西型”变为1974年后相关系数分布呈“ - + - ”的“南北型” 。
4.
Monthly rainfall data from 1951 to 1995 for june , july and august in 13 meteorological stations of the north china were used for accounting z index and discussing serious flood and drought featureas in these months . serious flood mainly happened in july and august , and sevious drought mainly happened in august . there were more flood in 1950 ' s to 1960 ' s and more drought since 1970 ' s in the north china . meanwhile , the deeper trough which covered the regions from the ural mts . to the balkhash lake play an important role in serious rainstom in rainy season in the north china . there often happened serious flood ( drought ) when the northwester pacific subtropical high was by west and north ( east and south ) , and the sea surface temperature in the equatorial central and eastern pacific was mainly in dropping ( raising ) stage 利用华北平原地区的13个站点, 45年（ 1951 1995 )的降水资料,对夏季4个时段（ 6月、 7月、 8月、 6 8月）进行了z指数计算,确定了该地区各个时段的严重涝年和严重旱年.发现华北地区雨季的严重洪涝主要集中在7 , 8月,严重干旱则主要发生在8月,并可明显看出由50 60年代的多水期向70年代中期以后的少水期的转变,另外,乌拉尔山到巴尔喀什湖附近的低压槽加深和西北太平洋副热带高压的北抬,对华北地区雨季持续性暴雨的产生起着决定性的作用.严重洪涝年的夏季（ 6 8月） ,西北太平洋副热带高压偏西、偏北,赤道东太平洋海温多处于下降阶段;严重干旱年西北太平洋副高偏东、偏南,赤道东太平洋海温则处于上升阶段
