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单词 Arctic alpine
释义

Arctic alpine

英语百科

Arctic–alpine

Examples of Arctic–alpine plantsOxyria digyna growing in the Svalbard archipelago (Arctic; 78° N; near sea level)Oxyria digyna growing in the Californian Sierra Nevada (alpine; 38° N; 3300 m above sea level)Silene acaulis growing in northern Norway (Arctic; 67° N; 100 m above sea level)Silene acaulis growing in the Austrian Alps (Alpine; 47° N; 2200 m above sea level)

An Arctic–alpine taxon is one whose natural distribution includes the Arctic and more southerly mountain ranges, particularly the Alps. The presence of identical or similar taxa in both the tundra of the far north, and high mountain ranges much further south is testament to the similar environmental conditions found in the two locations. Arctic–alpine plants, for instance, must be adapted to the low temperatures, extremes of temperature, strong winds and short growing season; they are therefore typically low-growing and often form mats or cushions to reduce water loss through evapotranspiration.

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更新时间:2025/6/23 13:39:24