Interpretation of the last-glacial vegetation of eastern-central Europe using modern analogues from southern Siberia
Interpretation of the last-glacial vegetation of eastern-central Europe using modern analogues from southern Siberia
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DOI：
10.1111/j.1365-2699.2008.01974.x
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发表时间：
2008-12-01
影响因子：
3.9
通讯作者：
Petr, Libor
中科院分区：
文献类型：
--
作者：
Kunes, Petr;Pelankova, Barbora;Petr, Libor
化石花粉组合的解释可能会大大受益于现代孢粉学和植被类似物的比较。为了解释欧洲中东部的完整和晚冰期植被，我们将该地区的化石花粉组合与西伯利亚南部各种植被类型的现代花粉组合进行了比较，其中可能包括中欧末次冰期植被最接近的现代类似物。捷克和斯洛伐克共和国化石花粉组合;西萨彦山脉，西伯利亚南部在西伯利亚森林、苔原和草原的14种植被类型中采集了88个现代花粉谱，用主成分分析法与欧洲中部7个地区末次冰期花粉谱进行了比较，结果表明，西喀尔巴阡山脉（海拔350-610 m）山谷的全冰期和晚冰期花粉谱与西伯利亚南部针叶林、半寒带森林和矮桦苔原的现代花粉谱相似。在波希米亚地块（海拔185-190米）的低地河谷的全冰期和晚冰期早期的花粉光谱也表明存在半北方森林或针叶林斑块。波希米亚地块的其他晚冰期花粉光谱表明，该地块是一个开阔的景观，有草原或苔原，或两者的镶嵌，可能有小块的半寒带森林。我们的结果与以下假设一致：在完整的冰期和晚冰期，喀尔巴阡山脉西北部的山谷支持针叶林或以落叶松、三棵松、樟子松和云杉为主的半寒带森林，沿着与一些干草原或苔原地层。森林向西（摩拉维亚低地）逐渐变得开阔或零星，逐渐过渡到波希米亚的普遍无树景观，在当地有利的地点可能有林地斑块。
Interpretation of fossil pollen assemblages may benefit greatly from comparisons with modern palynological and vegetation analogues. To interpret the full- and late-glacial vegetation in eastern-central Europe we compared fossil pollen assemblages from this region with modern pollen assemblages from various vegetation types in southern Siberia, which presumably include the closest modern analogues of the last-glacial vegetation of central Europe.Czech and Slovak Republics (fossil pollen assemblages); Western Sayan Mountains, southern Siberia (modern pollen assemblages).Eighty-eight modern pollen spectra were sampled in 14 vegetation types of Siberian forest, tundra and steppe, and compared with the last-glacial pollen spectra from seven central European localities using principal components analysis.Both full- and late-glacial pollen spectra from the valleys of the Western Carpathians (altitudes 350-610 m) are similar to modern pollen spectra from southern Siberian taiga, hemiboreal forest and dwarf-birch tundra. The full-glacial and early late-glacial pollen spectra from lowland river valleys in the Bohemian Massif (altitudes 185-190 m) also indicate the presence of patches of hemiboreal forest or taiga. Other late-glacial pollen spectra from the Bohemian Massif suggest an open landscape with steppe or tundra or a mosaic of both, possibly with small patches of hemiboreal forest.Our results are consistent with the hypothesis that during the full glacial and late glacial, the mountain valleys of the north-western Carpathians supported taiga or hemiboreal forest dominated by Larix, Pinus cembra, Pinus sylvestris and Picea, along with some steppic or tundra formations. Forests tended to be increasingly open or patchy towards the west (Moravian lowlands), gradually passing into the generally treeless landscape of Bohemia, with possible woodland patches in locally favourable sites.