近10年在世界文献中广泛使用术语干旱土地(arid lands),或干旱带(arid zones)。按照这些术语,干旱区理解为具有干旱气候的区域,包括温带干草原和热带、亚热带的萨王拉、潘帕斯。
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在许多半干旱的地区中,同样存在树带界限的下限区域;在这片区域之内,由于缺乏水分,森林下沿区域的植被通常会逐渐变成干草原或沙漠。
In many semiarid areas there is also a lower timberline where the forest passes into steppe or desert at its lower edge, usually because of a lack of moisture.
大多数居民生活在东南海岸一带,例如墨尔本和悉尼,因为东南风给那里带来了雨水,而内陆则干旱或半干旱。
Most people reside along the southeast coast, in cities like Melbourne or Sydney, because winds from the southeast release rain there-leaving the interior beyond the mountains arid or semiarid.
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