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EXECUTIVE SUMMARY - UNESCO World Heritage

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Fagus mexicana<br />

Fagus grandifolia<br />

or sparsely settled regions with little infrastructure<br />

(KNAPP et al. 2008). In contrast,<br />

the Holarctic deciduous forest regions are<br />

among the most densely populated areas in<br />

the world, which are growth centres of<br />

modern industrialised civilisations. It therefore<br />

comes as no surprise that deciduous<br />

forests have seen a massive displacement<br />

during the history of settlement, with only<br />

a few relics being found globally.<br />

Th e current fl oristic discrepancies between<br />

the Earth's major deciduous forest regions<br />

are primarily a result of the Quarternary<br />

climate change (WALTER & STRAKA<br />

1970, LANG 1994). Th e conse quences of<br />

glaciation turned out more extreme in<br />

Europe than in North America (ARCHI-<br />

BOLD 1995). Th e ice cover in Siberia or<br />

in Central Asian mountain ranges was<br />

comparatively less pronounced, resulting in<br />

the forest coverage being fragmented to a<br />

lesser extent than was the case in Europe<br />

Fagus sylvatica<br />

and North America. In glacial Japan, the<br />

glaciers rose to an altitude of 2,700 metres<br />

and above.<br />

Europe<br />

Being associated with the climate’s steadily<br />

decreasing oceanity from west to the east,<br />

the beech forest distribution in Europe is<br />

bounded by climatic parameters. Th e beech<br />

forests’ eastern and northern bound aries are<br />

roughly correspondent to the distributions<br />

limit of Fagus sylvatica, which is confronted<br />

with increasing winter's cold (< –30°C)<br />

in the east and north as well as with aridity<br />

(annual precipitation < 500 mm) (c.f.<br />

SCHRÖDER 1998). Beech forests with<br />

F. sylvatica form the potential and partially<br />

actual climax vegetation in Central Europe<br />

with its oceanic to suboceanic characteristics.<br />

In global comparison, F. sylvatica’s<br />

absolute dominance should be emphasised,<br />

which forms pure stands predominantly and<br />

particularly in Central Europe.<br />

3. JUSTIFICATION FOR INSCRIPTION<br />

Fagus crenata<br />

Fagus orientalis Fagus engleriana<br />

Fagus chienii Fagus japonica<br />

Fagus longipetiolata<br />

Fagus lucida<br />

Fagus hayatae<br />

Fig. 3.3: <strong>World</strong>wide distribution<br />

of 11 Fagus species throughout<br />

the deciduous forests<br />

(HOFFMANN & PANEK<br />

2006)<br />

Nationale<br />

Naturlandschaften<br />

89

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