论文部分内容阅读
南疆地区近四千年来气候与环境演化的研究表明 ,本地区气候环境的干旱状况持续未变 ,但期间仍有若干次相对凉湿与暖干旱时期的波动 ,且揭示出 3 .0 ka B.P.、2 .0 ka B.P.、1.5 ka B.P.、1.0 ka B.P.、0 .2 ka B.P.五个气候突变转干时间界线。本研究揭示了近四千年来本地区持续干旱化的特征 ,并有后期加剧的趋势 ,并指出历史时期南疆地区若干人文事件的发生如近两千年以来丝绸之路的兴衰、南疆古城镇的废弃等与气候环境演化之间存在着良好的准对应关系 ,表明气候环境的自然演化是影响人地关系类型与内容的重要因素之一。
The research on the climate and environment evolution in southern Xinjiang in the recent four thousand years shows that the drought conditions in the climate and environment in this area have not changed. However, there are still some fluctuations during relatively cool and warm and dry periods, revealing 3.0 ka BP, 2.0 ka BP, 1.5 ka BP, 1.0 ka BP and 0.2 ka BP. This study reveals the characteristics of the continuous drought in the region in the last four thousand years with the trend of later aggravating. It also points out the occurrence of some humanistic events in the history of southern Xinjiang during the historical period, such as the rise and fall of the Silk Road in recent two thousand years, There is a good quasi-correspondence between the desertion of the town and the evolution of the climate environment, indicating that the natural evolution of climate and environment is one of the important factors that affect the type and content of the relationship between people and land.