周期性气候变化与人类适应

吕厚远

Periodic climate change and human adaptation

LYU Houyuan

图3 中国东部小龙湾年纹层孢粉分析揭示的5350年以来的温度变化示意图 该图显示,近100年升温过程位于500年自然周期的变暖相位上;a.谱分析结果;b.气候变化曲线（据[103]）。

Fig.3 Temperature changes since 5350 years ago revealed by annual stratigraphy pollen analysis in Xiaolongwan Lake, Eastern China indicating a warming process in the last 100 years, which is located in the warming phase of the 500-year natural cycle. a. spectrum analysis results; b. Climate change curve (by [103])