2009年1月9日 星期五

15週 (2) 5-2 p.89

Temperate deciduous forests grow in areas with moderate average temperatures that change significantly with the season. These areas have long, warm summers, clod but not too severe winters, and abundant precipitation, often spread fairly evenly throughout the year.
This biome is dominated by a few species of broadteaf aeciauous trees such as oak, hickory, maple, poplar, and beech. They survive cold winters by dropping their leaves in the fall and becoming dormant through the winter. Each spring they grow new leaves whose colors change in the fall into an array of reds and golds before the leaves drop.


溫和落葉林生長於平均氣溫適中且四季分明的地區,這些地區非常廣、溫暖、和冷,但卻不包含嚴冬和一整年平均分布的豐富降雪。

而這生物社會控制於一些少數特殊的闊葉菸草落葉樹,像橡木、山胡桃木、楓樹、楊木、山毛櫸,他們活下於冬天是靠落下他們的葉子在秋天的時候且休眠渡過冬天,到春天時他們就會長出新的葉子,而這些樹木在秋天時葉子會轉變成深紅色或金色在他們落下葉子以前。

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