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通过分析巴丹吉林沙漠内部8个泉水、12个井水、51个湖水的化学参数,初步探讨了湖泊与地下水化学参数的空间分布规律,比较近10a来湖水矿化度值的变化情况,并对地下水与湖水各水化学参数值进行了对比分析。结果表明,沙漠腹地湖水TDS值从西北向东南逐渐降低,Na-Cl-CO3-(SO4)型湖水向东南过渡成Na-CO3-Cl-(SO4)型湖水,推测这种分布状况主要受当地气候的影响,同时受制于局部环境条件;沙漠东南边缘湖水矿化度值长期维持低值,SO24-离子含量较CO23-高,气候条件相对腹地湿润,可能存在大量的淡水资源补给;湖水TDS值的年际变化主要受气候变化的控制;沙漠地下水矿化度值并未出现和湖水类似的空间趋势性,并且地下水和湖水的TDS值线性相关不显著。
By analyzing the chemical parameters of 8 springs, 12 wells and 51 lakes in Badain Jaran Desert, the spatial distribution of chemical parameters of lakes and groundwater was discussed. The changes of salinity of lakes in the past 10 years were compared The chemical parameters of groundwater and lake water were compared and analyzed. The results show that the TDS value in the hinterland of the desert gradually decreases from the northwest to the southeast, and the Na-Cl-CO3- (SO4) -type lake transforms to the southeast as Na-CO3-Cl- (SO4) lake water, suggesting that this distribution is mainly affected by the local Climate, and subject to local environmental conditions; the salinity value of the lake water in the southeastern margin of the desert maintains a low value for a long time, the content of SO24- ions is higher than that of CO23-, the climate conditions are relatively humid in the hinterland, and there may be plenty of freshwater resources replenishment; The interannual change of the groundwater is mainly controlled by climate change. The salinity value of desert groundwater does not show spatial trend similar to that of the lake, and the linear correlation between groundwater and lake water is insignificant.