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根据腾格里沙漠断头梁人工开挖剖面距今约４２０００～２３０００ａＢＰ（晚更新世）的孢粉分析结果，可将该期植被和气候演化划分为５个阶段（组合带）：阶段Ⅰ，约４２０００～３８０００ａＢＰ，此段孢粉组合特征显示出，在现今为戈壁荒漠的山地丘陵上，当时发育着针阔混交林，在古湖边缘上发育着杨柳林和草原，气候较温暖湿润；阶段Ⅱ，约３８０００～３１０００ａＢＰ，气候温暖湿润，地带性植被为以温带、暖温带阔叶林为主的针阔混交林，湖畔河边发育着草甸植被；阶段Ⅲ，约３１０００～３００００ａＢＰ，为针叶林和寒温性高山柳丛大发展时期，气候寒温，为一冷期；阶段Ⅳ，约３００００～２８０００ａＢＰ，为冷期过后的升温期，也是湖面扩大期，孢粉组合中藻类含量高，为草甸和沼泽植被；阶段Ⅴ，２８０００～２３０００ａＢＰ，孢粉组合显示出丘陵山地上发育温带柏和桦为主的针阔混交林，平原上生长着草原植被，湖畔、河边有柳林分布，气候较温暖湿润，但较阶段Ⅰ略干。此剖面孢粉组合所反映的气候变化特征与古里雅及格陵兰冰芯δ１８Ｏ所记录的同期气候变化特征具有良好的可比性。
Based on the results of spore-pollen analysis about 42000 ~ 23000a BP (Late Pleistocene) section of the Tengger Desert, the vegetation and climate evolution in this period can be divided into five stages (combination zone): Stage I, About 42000-38000aBP. The characteristics of sporopollen assemblages in this stage show that mixed coniferous and broad-leaved forests were developed in the present-day mountain hills of the Gobi desert. Poplar forests and grasslands were developed on the edge of the ancient lake with warm and humid climate. Stage Ⅱ, about 38000 ~ 31000aBP. The climate is warm and humid. The zonal vegetation is a coniferous-broad-leaved forest dominated by temperate and warm temperate broadleaf forests. Meadow vegetation is developed along the banks of the lake. Stage Ⅲ is about 31000 ~ 30000a BP, In the period of large development of the cold-temperate alpine and willow climate, the climate is cold and cold, with a cold period. Stage IV is about 30000-28000 aBP, which is the temperature rising period after the cold period and also the lake expansion period. The algal content in the sporopollen assemblage is high, For the meadow and marsh vegetation; stage Ⅴ, 28000 ~ 3000aBP. The sporopollen assemblages showed coniferous and broad-leaved mixed forest dominated by temperate and Betula platyphylla in the hills and hills. Vegetation was grown on the plains. There was Liulin distribution on lakeside and riverside. The climate was warmer and wetter than that in Stage I . The climate change characteristics reflected by the sporopollen assemblage in this section are in good comparability with the contemporaneous climatic change characteristics recorded by the Guli ice core and the Greenland ice core δ18O.