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          鐵樺樹揭秘:世界上最硬的、刀槍不入奇樹!壽命可達450年

          發布時間:2018-07-20 編輯:管理員 瀏覽:
          導語:導讀:鐵樺樹揭秘:世界上最硬的、刀槍不入奇樹!壽命可達450年,一般的樹木給人感覺都不是太堅硬,檀木是樹木中比較堅硬的樹種,但還有一種樹木,聽聽它們的名字就知道它們有多硬了……
          鐵樺樹揭秘:世界上最硬的、刀槍不入奇樹!壽命可達450年
              導讀:鐵樺樹揭秘:世界上最硬的、刀槍不入奇樹!壽命可達450年,一般的樹木給人感覺都不是太堅硬,檀木是樹木中比較堅硬的樹種,但還有一種樹木,聽聽它們的名字就知道它們有多硬了,名字都帶鐵,鐵樺樹!在世界上有一種樹的木材居然比普通的鋼鐵還要硬!是不是覺得不可思議,木材和鋼板居然能相提并論。下面我們就來認識一下這種“鋼鐵之樹”吧!鐵樺樹的木材在硬度上比普通的鋼鐵還要硬一倍,是世界上最硬的木材。人們把它稱呼為木王。
          鐵樺樹揭秘:世界上最硬的、刀槍不入奇樹!壽命可達450年

          1、 形態特征

              鐵樺樹高20-35米,樹干直徑約70厘米,壽命約300-450年,樹皮呈黑色或黑褐色,有不規則的塊狀剝裂,上面密布著白色斑點。
          鐵樺樹揭秘:世界上最硬的、刀槍不入奇樹!壽命可達450年

          2 、生長環境

              喜光,耐寒,耐干旱瘠薄的土地。也許正是這樣的特性,才造就了它鋼鐵一般的身軀吧。
              它目前主要分布在中國吉林東部及東南部、浙江西部、遼寧東北部。在俄羅斯、朝鮮、日本等地也有分布。
          鐵樺樹揭秘:世界上最硬的、刀槍不入奇樹!壽命可達450年

          3、鋼鐵般的身軀

              鐵樺樹那鋼鐵一般堅硬的身軀,即便是子彈打在這種木頭上,也幾乎是紋絲不動的。它的質地十分緊密,所以放到水里立刻就會沉下去。
              鐵樺樹的這種特性使它可以作為鋼材的代替品,俄羅斯曾經用鐵樺樹制造滾球、軸承等。
              您也許會問:既然這么硬,那要怎樣加工這樣的木材?
              當然,一般的伐木工具以及木材加工工具肯定是不行的。沒錯!加工鐵樺樹木材的正是那些加工金屬的工具,只有比它更硬的材質,才能把它加工成想要的形狀。
          鐵樺樹揭秘:世界上最硬的、刀槍不入奇樹!壽命可達450年

          4、堅硬風骨,越來越少

              也許和人一樣,擁有堅硬風骨的人總是很少,也容易受到摧殘。
              鐵樺樹本就生長不易,又因為它的堅硬特性,以前常被人砍伐,加工成工藝品、家具等等。再硬的材質也硬不過人們的那顆逐利之心。目前鐵樺樹已經屬于珍稀瀕危野生植物,處于滅絕的邊緣。僅剩的一些樹木,也被保護起來。
              看來想要一直保持一個堅硬的氣質,傲立于這蒼茫天地間,也不是一件容易的事情啊!
          鐵樺樹揭秘:世界上最硬的、刀槍不入奇樹!壽命可達450年

          5、鐵樺樹科普:

              鐵樺樹,別稱:賽黑樺,拉丁學名:BetulaschmidtiiRegel.殼斗目、樺木科、樺木屬落葉喬木。分布在產于中國吉林東部及東南部、浙江西部、遼寧東北部,俄羅斯,朝鮮,日本也有。生長于海拔700米左右的山地。傳說鐵樺樹的木堅硬程度,比橡樹硬三倍,比普通的鋼鐵硬一倍,是世界上最硬的木材,人們把它用作金屬的代用品。鐵樺木屬珍稀瀕危野生植物,為極危物種,處于滅絕的邊緣。人們稱呼為木王。喬木,高達20-35米,樹干直徑約70厘米,壽命約300-450年。樹皮黑色或黑褐色,成不規則的塊狀剝裂,上面密布著白色斑點。
           

          上一篇:鐵皮石斛揭秘:“天價神草”的陷阱!石斛雖好,但不能包治百病!

          下一篇:茵陳蒿揭秘:李時珍贊不絕口的茵陳蒿是什么植物?有什么功效?

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