林业科学 ›› 1996, Vol. 32 ›› Issue (3): 285-288.
• 研究简报 • 上一篇
朱玉杰
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Yujie Zhu
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关键词: 干基内部根腐, 跟踪测量, 锥体, 阶梯圆柱形
Abstract:
During 1990 and 1993, the author made dimensional measurement of the root rots in the internal part of the infected logs in Zhangguangcai moutain range. This paper made following analysis according to the shapes of these rots:①At cross section, where rot entered into the stem the rot became a circle and had a circumference parallel the growth ring; ②At vertical section, 84% of the rots were rectangualar and cuneiform (50% for each).It is concluded that:the root rot in the internal part of stem could not be said cone-shaped simply. Exactly, the root rot was cone-shaped in general, but In specific, it was ladder-cylind narrowing to the top.
Key words: Root rot stem internal, Following measure, Cone, Ladder cyiinder
朱玉杰. 干基内部根腐形状的分析[J]. 林业科学, 1996, 32(3): 285-288.
Yujie Zhu. ROOT ROT SHAPE IN THE INTERNAL PART OF STEM[J]. Scientia Silvae Sinicae, 1996, 32(3): 285-288.
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图
干基内部根腐形状图 (a)混合菌早期,穆棱红松, D40cm; (b)白腐菌早期, 通河落叶松, D38cm; (c)褐腐菌早期, 穆棱柞木D36cm; (d)混合菌早期,穆棱色木, D30cm; (e)混合菌早期,穆棱水曲柳, D36cm; (f)白腐菌早期, 穆棱红松, D38cm; (g)褐腐菌晚期,穆棱云杉, D28cm; (h)白腐菌早期, 穆棱椴木, D32cm"
表1
根腐横断面形状统计"
表2
根腐纵割面形状统计"
表3
根腐纵割面终止状态统计"
表4
根腐腐朽锥度统计①"