Q149851 refers to a large tree species found in nature. While the specific details about which species this is aren't provided in the available information, such large trees matter because they play important roles in their ecosystems and often have significant ecological or cultural value.
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巨杉(学名:Sequoiadendron giganteum),俗称世界爷,属柏科巨杉屬唯一物種。主要分佈於美国加利福尼亚州內华达山脈西部。阳性树,生长快,而树龄极长。播种繁殖,但幼苗易生病害。巨杉是所有树中最粗大的一种。巨杉不仅是最大的红木,而且也是地球上最庞大的并且尚存活着的生物。平均可長到50~85米(164~279英尺),直徑約5~7米(16~23英尺)。紀錄中樹高最高可達93.6米(307英尺)、最大直径超过10米(33英尺)。 其中一棵位于内华达山巨杉国家公园中的巨杉雪曼將軍樹,树高83.8米(275英尺),基部直径幹11.1米(36英尺),树干围长31.1米(102英尺),树高18.3公尺处仍有5.3米(17英尺)直径,树高54.9公尺处直径4.3米(14英尺),树高39.6公尺处最大分支直径达2.1米(6英尺11英寸)。1985年测算重量约为2,800公噸(2,800長噸;3,100短噸)。據估計其樹齡約2150年左右,應該不超過3100年,其体积达到1,487 m3(52,500 cu ft),是地球上现存最大的单一有机体(曾经有数棵更大的巨杉,但因为19世纪后期发现后的砍伐,已经消失)。
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Sequoiadendron giganteum (also known as the giant sequoia, giant redwood, Sierra redwood or Wellingtonia) is a species of coniferous tree, classified in the family Cupressaceae in the subfamily Sequoioideae. Giant sequoia specimens are the largest trees on Earth. They are native to the groves on the western slopes of the Sierra Nevada mountain range of California but have been introduced, planted, and grown around the world.
The giant sequoia is listed as an endangered species by the IUCN with fewer than 80,000 remaining in its native California.
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Discovered by embedding cosine similarity (sentence-transformers MiniLM, 384-dim).