中文摘要：

利用采自马鞍山地区兴安落叶松（Dahurian Larch）树轮样芯，建立了树轮标准化年表．根据建立的年表，对马鞍山地区树木生长与月降水量进行了响应分析，重建了该地区1942年以来7～9月降水量序列．检验表明，重建方程稳定，重建序列可信．重建结果显示：马鞍山地区7～9月降水量有较小的逐年减小趋势；1942～1957年马鞍山地区降水量处在枯水期；1957～1989年马鞍山地区降水量处在丰水期；1989年往后马鞍山地区降水量又出现一个枯水期的变化过程．

英文摘要：

The standardized tree-ring chronology was established using the tree-ring cores of Dahurian Larch sampled from the Ma＇an Mountain area. Based on the standardized chronology, response analysis between the tree growth and monthly precipitation in the Ma＇an Mountain area was performed. The precipitation series in this area from July to September since 1942 was reconstructed. The results show that the equation for the reconstruction of the precipitation series is stable and the reconstruction sequence is reliable. The precipitation in the area from July to September has a slightly decreasing trend year by year. The test results also exhibit two dry periods （1942-1957 and 1989-2007） and a rainy period （1957- 1989） in the Ma＇an Mountain area.