国家地理 2007年九月刊 二

　　2007-09-27
　　Canada, 1985
　　Photograph by George F. Mobley
　　Frost-flecked tundra pools dot the landscape of Canada's North Yukon National Park. Treeless regions found in and around the Arctic, tundras are among Earth's coldest, harshest biomes. Permafrost, cold, wind, and scant rainfall make it difficult for most plants and animals to survive here.
　　(Photo shot on assignment for, but not published in, "Kluane: Canada's Icy Wilderness Park," November 1985, National Geographic magazine)
　　
　　
　　在加拿大的北育空国家公园里，几个结冰的池塘散落在冻原上。这片光秃秃的地区在北极附近，是地球上最寒冷，最荒芜的生物群落区之一。永久冻土，严寒，强风，以及匮乏的降水量使得大部分动植物都难以在此地生存。
　　

 

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