Advantages and disadvantages of phytolith analysis for the reconstruction of Mediterranean vegetation:: an assessment based on modern phytolith, pollen and botanical data (Luberon, France)

被引:53
作者
Bremond, L
Alexandre, A
Véla, E
Guiot, J
机构
[1] CEREGE Mediterraneen Arbois, F-13545 Aix En Provence 04, France
[2] IMEP, Europole Mediterraneen Arbois, F-13545 Aix En Provence, France
关键词
phytolith; modern; Mediterranean; paleovegetation; pollen;
D O I
10.1016/j.revpalbo.2004.02.002
中图分类号
Q94 [植物学];
学科分类号
071001 ;
摘要
We present here the results of a first study comparing modem soil phytolith assemblages with pollen and botanical data at a North Mediterranean site. This work has shown the following limitations and advantages of phytolith analysis for the reconstruction of Mediterranean vegetation: (1) Phytoliths are produced in sufficient quantities for analysis and are well preserved in limestone environments, widespread in the Mediterranean area. (2) Young stands of Quercus ilex and Quereus coccifera, widely distributed in the Mediterranean area do not produce characteristic phytolith types in sufficient quantities to allow the calculation of a reliable index of tree cover density. (3) Pine forests, dominated by Pinus halepensis and Pinus sylvestris, are not recorded in the studied phytolith assemblages. (4) Grassland and shrubland assemblages can be distinguished through their associated phytolith assemblages, in particular by the proportion of crenate phytoliths produced in the short cells of the grass epidermis. (5) The different vegetation groups on the massif cannot be distinguished by pollen analysis. Further studies, comparing modem phytolith assemblages and quantitative vegetation data, should be carried out on forest plots that have been established for several centuries to further assess the role of phytolith analysis in vegetation reconstructions in the Mediterranean region. (C) 2004 Elsevier B.V. All rights reserved.
引用
收藏
页码:213 / 228
页数:16
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