用途北美红杉树姿雄伟壮观，是有发展前途的园景树。
Growth Response of Sequoia sempervirens Seedlings to N Nutrients;
这种大浮藻（学名为Macrosystispyrifera）也见于北美洲的太平洋沿岸，常被叫做“海中红杉”。
Giant kelp (Macrosystis pyrifera) is found along the Pacific coast of North America and is sometimes referred to as the "sequoia of the sea."
为什么红杉在数百万年前的北美森林里较常见？
Why were redwood trees more prominent in the forests of North America millions of years ago?
一亿年前，在恐龙时代，红杉常见于较潮湿且偏热带气候的北美森林里。
A hundred million years ago, in the age of dinosaurs, redwoods were common in the forests of a much more moist and tropical North America.
一亿年前，在恐龙时代，红杉常见于较潮湿且偏热带气候的北美森林里。
A hundred million years ago, in the age of dinosaurs, redwoods were common in the forests of a much more moist and tropical North America.
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