Several dry climate events are revealed in Ximen Cuo core, with low lake level. The time is 12.8ka, 11.2 ka, 9.4 ka, 8.4 ka, 6.0 ka, 4.2 ka, 3.7 ka, 2.6 ka, 2. lka, 0.7 ka.

• 希门错钻孔还揭示了全新世期间希门错湖区出现了多次气候变干事件；其时间为12.；8ka；11