不同林龄杉木组织迁移养分的再利用
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吕中诚,康文星,黄志宏,赵仲辉,邓湘雯
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Reuse of retranslocated nutrients in tissues of Chinese fir in plantations of different ages
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LÜ Zhong-Cheng,KANG Wen-Xing,HUANG Zhi-Hong,ZHAO Zhong-Hui,DENG Xiang-Wen
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表2 不同林龄杉木器官的养分迁移量
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Table 2 Average annual nutrient transfer in organs of Chinese fir in different ages
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林龄
Stand age (a) | 干 Stem wood (kg·hm-2·a-1) | 皮 Stem bark
(kg·hm-2·a-1) | 枝 Twig
(kg·hm-2·a-1) | 叶 Needle
(kg·hm-2·a-1) | 根 Root
(kg·hm-2·a-1) | 合计 Total
(kg·hm-2·a-1) | | 8-11 | +1.01aM | +1.21bM | +2.10cM | +2.92dM | +0.59eM | +7.83M | | 12-16 | -1.09aN | -0.64bN | -1.46cN | -1.57dN | -1.07aN | -5.83N | | 17-20 | -1.79aR | -0.87bR | -1.63aR | -1.18dR | -1.28dR | -6.75R | | 21-25 | -1.65aR | -0.71bS | -1.08cS | -0.86dS | -0.88dS | -5.18S |
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