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氯平衡原理在降雨极其稀少的干旱区研究地下水补给具有较强的适用性,与氢、氧稳定同位素及含水量在包气带垂向的变化相结合,能够准确地计算地下水的多年平均补给率,并记录水文气候变化信息.巴丹吉林沙漠南缘的两个钻孔剖面分别记录了过去574年(B1)和812年(B2)以来的补给量变化过程及其所反映的气候波动特征,在该地区,多年降雨量为89 mm,而补给量平均仅为1.3 mm.800 aBP气候划分为4个干期和3个湿期.1500-1530年干旱区气候突变,18世纪末至19世纪初是气候环境演化的又一个十分重要的时间界限,自此以后干旱化进程进一步加剧.
Chlorine balance principle The study of groundwater recharge is of great applicability in extremely arid rains where rainfall is extremely low. Combined with the steady variations of hydrogen and oxygen stable isotopes and water content in the aeration zone, the multi-year average recharge rate of groundwater can be accurately calculated , And record the information of hydrological and climate change.During the two boreholes in the southern margin of Badain Jaran Desert, the changes of recharge volume and the climate fluctuations reflected in the past 574 (B1) and 812 (B2) respectively are recorded, In the region, the annual rainfall is 89 mm and the average supply is only 1.3 mm. 800 aBP The climate is divided into 4 dry periods and 3 wet periods. Climate change in arid zones from 1500 to 1530, from the late 18th to early 19th century Is another very important time boundary for the evolution of climate and environment. Since then, the process of aridification has further intensified.