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作 者 ：孔昭宸, 许清海, 阳小兰, 孙黎明, 梁文栋

期 刊 ：植物生态学报 2000年 24卷 6期 页码：724-730

关键词：饮马河流域；全新世；冲积物孢粉分析；植被；

Keywords:Yinma River Basin, Holocene, Alluvial pollen analysis, Vegetation coverage,

摘 要 ：

依据河北省卢龙县闫深港4.6m厚的冲积物剖面，揭示了较高时间分辨率的孢粉分析，参照现代冲积物孢粉与植被的对应关系，探讨了距今11000年以来饮马河流域植被的时空变化。11000～9000aBP的森林覆盖率约10％，9000～7000aBP约30％～40％，7000～4000aBP约20％～40％，3000～2500aBP约10％～20％。在9000aBP左右出现了云杉、冷杉花粉的高峰值，表明饮马河流域曾出现垂直植被带的变化。

Abstract:

Spatial and temporal changes in vegetation patterns of the Yinma River Basin were reconstructed using analysis of modern pollen-vegetation type relationships and a pollen core. This 4. 6 m alluvial section was collected Yanshen Port in Lulong county, Hebei province. Forest coverage in 11000-9000 aBP was about 10% and this increased to 20%-40% in 9000-4000 aBP. During 3000～2500 aBP the forest coverage decreased to 10%～20%. The large quantity of Picea and Abies pollen found about 9000 aBP, indicates that movement in the altitudinal zonation of vegetation occurred in Yinma River Basin at around this time.

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