Above the tree line there is a zone that is generally called alpine tundra.

林木线上方有一个区域，通常被称为高山苔原。

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Both the eastern zone of Howling Fjord and western entry points of Borean Tundra will be accessible to Horde and Alliance.

啸风海湾和北方苔原将成为联盟和部落同时登陆诺森德的起点。

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The climate gradually takes changes from subtropics, temperate zone, cool temperature zone and arctic tundra.

气侯从亚热带、温带、寒温带到亚苔原带逐渐变化。

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One example of continuous observation of ecological change is provided by the Nenets in Northwest Russia, who report increases in the height of willow and alder shrubs in the tundra zone.

UNESCO: EDUCATION