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莱州湾沿岸GK138孔孢粉组合特征及其环境意义

Journal of Shandong University of Science and Technology(Natural Science)(2018)

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Abstract
通过对渤海菜州湾GK138钻孔的79个沉积物样品中孢粉定量统计分析,在34个样品中发现丰富的孢粉,共统计孢粉5 757粒,鉴定为83个属种,自下而上划分为7个孢粉组合带,组合带Ⅰ (66.00~70.80 m):Pinus-Quercus-Artemisia-Chenopodiaceae孢粉带,组合带Ⅱ(51.34~54.44 m):Chenopodiaceae-Cyperus-Typha孢粉带,组合带Ⅲ(48.85~51.34 m):Pinus Quercus孢粉带,组合带Ⅳ(34.11~39.60 m):Pinus-Quercus-Polypodiaceae-Typha孢粉带,组合带Ⅴ(20.56~34.11m):Picea Pinus Chenopodiaceae孢粉带,组合带Ⅵ(15.65~20.56 m):Pinus-Chenopodiaceae-Artemisia-Typha孢粉带,组合带Ⅶ(10.72~15.65 m):Pinus-Artemisia-Quercus孢粉带.孢粉组合带特征呈现喜冷和喜暖的植物群落的相互演替,反映了莱州湾西部沿海地区晚更新世至全新世以来的古气候冷暖交替变化.
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