arctic tundra 中文意思是什麼

arctic tundra 解釋
極地凍源
  • arctic : adj. 1. 北極的；寒帶的 （opp. antarctic）。2. 極冷的，（態度等）冷淡的。n. 1. 北極圈；北極地方。2. 〈pl. 〉〈美國〉橡皮套靴。
  • tundra : n. 【地質學；地理學】苔原，凍原，凍土帶，寒漠。
  1. These are the signs of the coming arctic winter : the color of the tundra changes as the water grasses turn brilliant red. the migratory birds gather in flocks along the coast and gradually drift southward. most of the birds that have spent the brief summer on the tundra now disappear, leaving only the golden eagle, the gyrfalcon, the ptarmigan, and the snowy owl to brave the sunless northern winter

    這些都是北極地區冬季即將來臨的徵候：隨著水草變成艷紅色，北極苔原的顏色也改變了候鳥沿著海岸成群聚集，並逐漸南移在苔原度過短暫夏天的大部分鳥類現已消失，只剩下金鷹白隼松雞和雪白色的貓頭鷹來迎接這沒有太陽的北極之冬。
  2. The most severely damaged will be the canadian low arctic tundra ; the wooded ural mountain taiga in russia ; the central andean dry puna in chile, argentina and bolivia ; the daurian steppe of mongolia ; the savannah of north - east india and nepal ; and the fynbos of southern africa

    受害最嚴重的將是加拿大的下北極苔原，俄羅斯樹木繁茂的烏拉爾山針葉林，智利、阿根廷和玻利維亞安第斯山脈中部的乾冷高原，蒙古的乾草原，印度和尼泊爾兩國東北部的熱帶稀樹草原，非洲南部的高山硬葉灌木群落。
  3. But as the tundra becomes shrubbier and as the soil becomes drier in the summer as a result of higher temperatures, the balance could swing back the other way, because plants, particularly woody ones, will fix more carbon and lock it back into the arctic ecosystem

    但當苔原長了小樹，土壤也因為夏季較高的溫度而變得乾燥時，平衡可能蕩向另一個方向，因為植物（尤其是木本植物）會固定更多的碳，將其鎖回北極生態系裡。
  4. A study on pollen morphology of tundra plants from barrow, arctic

    地區幾種凍原植物的花粉形態
  5. Surface radiation characteristics at ny - lesundover the arctic tundra area

    北極苔原新奧爾松地區的地表輻射特徵
  6. As the lakes and ponds freeze over, a thin mantle of snow covers the sedge. occasionally a young and inquisitive arctic fox may be seen loping across the tundra. the weasel and the lemming begin to change color

    隨著湖泊水塘全部冰封，蓑衣草披上了薄薄的一層雪衣，也許偶而能見到一隻好奇的北極幼狐慢跑著越過苔原。
  7. Vast stores of carbon in the form of peat underlie much of the tundra in alaska and russia, evidence that for long periods arctic tundra has been a net carbon sink ; about 600 cubic miles of peat are currently in cold storage

    碳以泥煤的形式大量儲存在阿拉斯加與俄羅斯大部份的苔原底下，長期以來北極苔原一直都是碳的儲存槽，現在約有2500立方公里的泥煤冷藏於此。
  8. Wilderness forests give way to arctic tundra in the far north

    原生森林一直延伸到極遠的北方始由極地草原取代。
  9. By the end of september or early october the tundra is dark and seems deserted ; winter has taken hold of the arctic for another nine long months

    9月底或10月初，苔原是黑暗的，似乎是一片荒蕪；冬天在長達9個月的時光中又主宰了北極。
  10. The process of gathering fossil fuels and other natural resources can be devastating to the sensitive wildlands ( such as the tropical rainforests, the arctic tundra, and coastal marshes ) from which they come

    採集石油和其他一些自然資源的過程會對這些資源所來自的脆弱的自然生態環境（如熱帶雨林，北極苔原和沿海的沼澤濕地）帶來毀滅性的影響。
  11. Role of vegetation and climate in permafrost active layer depth in arctic tundra of northern alaska and canada

    植被和氣候對阿拉斯加和加拿大北部北極苔原地區多年凍土活動層厚度的影響
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