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摘要： 中亚五国位于水资源严重不足的内陆地区，湖泊是该地区生态系统的主要支撑。由于以往的相关研究缺乏年内和年际长时间序列的信息支持，很难全面地认识中亚五国主要湖泊变化特征。以2001~2016年MODIS 8d的反射率产品作为数据源，利用归一化水体指数(Normalized Difference Water Index，NDWI)的方法提取水体面积，分析近15 a来中亚9个主要湖泊的年内和年际间水面变化特征及关键影响因素。结果表明：①中亚五国湖泊水面变化受人为干扰和气候变化双重影响，平原尾闾和高山封闭性湖泊年内和年际时间序列呈现不同的变化趋势和波动特征；②平原尾闾湖中的南、北咸海变化最为明显，南咸海近15 a水面面积呈明显的减少趋势，减少面积超过70%，而北咸海则随降水变化呈现波动的特征；③中亚主要湖泊的总面积呈减少的趋势，15 a来面积缩减了23.51%，南咸海是统计的所有湖泊面积减少的主要贡献者，除南咸海外，其他湖泊水面面积呈增长的趋势。 Abstract: The five Central Asian countries are located in the inland areas with a serious shortage of water resources and the lakes are the main support for the ecosystem in the area.Due to the lack of long-term information support both in the year and in the intervening years，it is difficult to fully understand the characteristics of the major lakes in the five Central Asian countries.In this study，MODIS 8-day reflectivity products were used as data sources from 2001 to 2016，and the Normalized Difference Water Index (NDWI) method was used to extract the water body area.The annual and inter-annual water surface of 9 major lakes in Central Asia Change Characteristics and Key Influence Factors.The results show that:(1) Lake water surface changes in the five Central Asian countries are affected by anthropogenic disturbance and climate change.The annual and interannual time series of the lake tail and alpine enclosed lake show different trend and fluctuation characteristics;(2) the changes of the Aral sea in the south and north are most obvious.The surface area of  the South Aral Sea has decreased obviously in recent 15 years，reducing the area by more than 70%，while the North Aral Sea fluctuates with the variation of precipitation.(3) the total area of  the sub-main lakes has been declining.The area has shrunk by 23.51% over the past 15 years.The South Aral Sea is a contributor to the statistical decrease of all lakes.However，the surface area of other lakes shows an increasing trend.

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