| 词汇 | tundra |
| 释义 | tundra noun[ U ] uk /ˈtʌn.drə/ us /ˈtʌn.drə/ (part of) the very large area of land in North Asia, North America, and northern Europe where, because it is cold, trees do not grow and ground below the surface is permanently frozen: 冻原带，苔原带 Reindeer roam the tundra in large herds.大群大群的驯鹿在苔原上徜徉。 Few plants grow in tundra regions.苔原地区很少有植物生长。 Geography: deserts, prairies & wildernesses alpine tundra brush bush Bushman desert dust bowl grassland heath heathland marginal land moor mulga pasture plain the Gobi Desert veld virgin wadi waste wasteland tundra | American Dictionarytundra noun[ U ] us/ˈtʌn·drə/ any of the very large, flat areas of land in northern parts of Asia, North America, and Europe where, because it is cold, trees do not grow and the earth below the surface is permanently frozen Examples of tundratundra How will the tundra-taiga interface respond to climate change? Therefore, freeze-thaw of both pristine permafrost and tundra soil samples in complete darkness with only temperature fluctuations were run. Factors affecting nest site selection and reproductive success of tundra nesting shorebirds. From tropics to tundra: global convergence in plant functioning. The ruddy turnstone exhibits a holarctic breeding distribution that includes rocky coasts and tundra habitats. The results with modern tundra soils and permafrost sediments demonstrate the resistance of their microbial communities to prolonged freezing and freeze-thaw stresses. However, response and recovery methods must consider lateral containment, and must be weighed against their potential to damage tundra. It is one of the most widespread cryogenic forms in terms of the area occupied, second only to patchy tundra. Children who live near a tundra will probably learn the word's meaning through perceptual information. The results show the expansion of forest into the tundra. Subsequent product recovery does not preclude residual contamination in tundra after ground refreezing. After 10 freeze-thaw cycles, the bacterial plate counts from modern tundra soil and syncryogenic layers did not change significantly. A disadvantage of modern methods of reindeer-herding is that the vegetation on tundra underlain by permafrost is severely damaged by the passage of motorized vehicles. Under these conditions, timely response might increase potential for successful tundra restoration. Four patterns are discerned here in the cycle of the northern biotype in the zones of tundra and taiga. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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