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                                                                                                                                                                                                                                                                                              俄羅斯落葉松的特點以及用途是什么呢

                                                                                                                                                                                                                                                                                              發布日期:2020-10-14 11:07瀏覽次數:

                                                                                                                                                                                                                                                                                                我國國內的木林已經很少,主要依靠國外進口,其中俄羅斯、美國、巴西等是我們進口木材的主要國家,俄羅斯落葉松是我國主要使用的木材材料之一,它主要從俄羅斯進口,不過我們國內也是有的,主要集中在東北一帶,由于其本身的特性所以很多用于建筑木方、家具板材上面,那么俄羅斯落葉松的特點以及用途是什么呢?

                                                                                                                                                                                                                                                                                              俄羅斯落葉松的特點以及用途是什么呢

                                                                                                                                                                                                                                                                                                俄羅斯落葉松為落葉性針葉樹,主要分布于俄羅斯和中亞等地。生長於歐洲、中亞與西伯利亞、樹高可達30m、平徑直徑50cm。具皮囊組織、芳香味、軸向樹脂溝微小。 樹皮: 成熟木樹皮呈深赤褐色帶淡紫,立木樹干根基部淡灰白褐色,表面略粗糙,具厚壁組織。 色調:心材黃褐色帶明赤,有時赤褐,板材白色或黃白色。 比重:是世界上最堅硬及力學強度最大的針葉樹種之一,氣干比重A.D.0.51~0.69。木理:木理通直。

                                                                                                                                                                                                                                                                                                俄羅斯落葉松也是我國東北、內蒙古林區、俄羅斯以及華北、西南的高山針葉林的主要森林組成樹種,是東北地區主要三大針葉用材林樹種之一。

                                                                                                                                                                                                                                                                                                俄羅斯落葉松的天然分布很廣, 它是一個寒溫帶及溫帶的樹種,在針葉樹種中是最耐寒的,垂直分布達到森林分布的最上限。俄羅斯落葉松在我國北方地區天然分布和人工栽培的主要有興安落葉松、長白落葉松、華北落葉松、日本落葉松入朝鮮落葉松。

                                                                                                                                                                                                                                                                                                俄羅斯落葉松原木板材基本性質:紋理直,結構中至粗,不均勻,重量中,硬度軟至中,干縮大,強度中,沖擊韌性中。干燥較慢,且易開裂和劈裂,早晚材性質差別大,耐腐性強,是針葉材中耐腐性強的樹種之一,抗蟻性弱,防腐浸漬處理難,多油眼,橫向切削困難,但縱面頗光滑,油漆后光亮性好,膠粘性質中等,握釘力強,易劈裂、是上等的家具料和建筑材料。

                                                                                                                                                                                                                                                                                                俄羅斯落葉松樹干端直,節少,心材與邊材區別顯著,材質堅韌,結構略粗,紋理直,是松科植物中耐腐性和力學性較強的木材,適宜作建筑、電桿、橋梁、舟車、枕木、椿木、礦柱、家具、器具及木纖維工業原料等材用。

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