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中文摘要：
巴里坤湖泊沉积地层较好地记录了北疆东部地区全新世以来的气候变化。通过对沉积物粒度组分及碳酸盐含量的测量分析，结合测年结果，得出北疆东部地区全新世以来气候环境变化大致经历了5个阶段：（1）8700cal．aBP以前，为全新世早期，环境变干；（2）8700～8200cal．aBP，为一过渡期，湖泊面积扩大；（3）8200～7700cal．aBP，气候以变湿为主要特点，波动较大；（4）7700～2400cal．aBP，气候较为湿润，期间存在一次明显的突发强干旱事件；（5）2400cal．aBP以来，气候转干，剖面顶部指标指示环境恶化。区域气候变化以干湿为主要特点，5500～6000cal．aBP期间的突发气候事件在大区域上与其他记录对应较好。
英文摘要：
Lacustrine sediments of Barkol have well recorded climate changes in the east region of northern Xinjiang since Holocene. Associated with the dating results, the authors suggested that there were about five phases of climate-environment changes in this area by measuring and analyzing grain sizes and carbon- ate contents of the sediments. （1）8 700 cal. aBP,in early Holocene,the climate was dry and cold; （2）during 8 700~8 200 cal. aBP,it was a stable transfer time,and the climate was moisture; （3）during 7 700~8 200 cal. aBP, the main character of climate was cool and moisture,fluctuated obviously; （4）during 2 400~7 700 cal. aBP, drought was the major climate character and during this period there was an obvious abrupt strong drought event; （5）since 2 400 cal. aBP ,the climate has been moisture. The climate change in Barkol Lake was mainly a dry moisture model. During the period of 5 500~6 000 cal. aBP the abrupt climate event was basically in accordance with other records.
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