地理漫步·世界地理英语30篇（3）

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喀尔巴阡山脉：跨越政区与海拔的森林连续性

Stretching across seven countries, the Carpathian Mountains form Europe’s largest contiguous forested mountain range.
Unlike the Alps, they lack major trans-alpine transport corridors, allowing old-growth beech and fir forests to persist at scale.
Altitudinal zonation creates distinct bioclimatic belts—from lowland oak-hornbeam to subalpine spruce and alpine meadows.
Cross-border protected areas like the East Carpathian Biosphere Reserve maintain ecological connectivity despite national borders.
Logging pressure varies sharply across jurisdictions, revealing how governance shapes landscape-scale forest structure.
Karst topography produces complex subsurface drainage, sustaining springs that feed rivers flowing into three different seas.
Brown bear and wolf populations use forest corridors to move between isolated high-elevation habitats.
Climate models project upward shifts in treeline, compressing alpine zones and increasing edge effects with farmland.
Traditional pastoral practices such as seasonal sheep grazing have maintained open meadow patches for centuries.
Remote sensing shows forest cover increased by 12% since 1990, partly due to rural depopulation and land abandonment.