中国寒温带不同林龄白桦林碳储量及分配特征
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魏红,满秀玲
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Carbon storage and its allocation in Betula platyphylla forests of different ages in cold temperate zone of China
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WEI Hong,MAN Xiu-Ling
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表4 大兴安岭北部白桦林各组分年净生产力和年净固碳量(t·hm-2·a-1)(平均值±标准偏差)
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Table 4 Net productivity and carbon storage of each component in the Betula platyphylla forests in the north section of the Da Hinggan Ling Mountains, NE China (t·hm-2·a-1)(mean ± SD)
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林龄
Age (a) | 乔木层 Arbor layer | 灌木层
Shrub layer | 草本层
Herb layer | 总计
Total | | 树干 Trunk | 树枝 Bark | 树叶 Leaf | 树根 Root | 总计 Total | | 25 | 年净生产力 Annual net productivity | 0.4 ± 0.0 | 0.3 ± 0.0 | 0.9 ± 0.1 | 0.1 ± 0.0 | 1.7 ± 0.1 | 0.1 ± 0.0 | 0.2 ± 0.0 | 2.0 ± 0.1 | | 年固碳量 Annual carbon storage | 0.2 ± 0.0 | 0.2 ± 0.0 | 0.5 ± 0.0 | 0.0 ± 0.0 | 0.9 ± 0.1 | 0.1 ± 0.0 | 0.1 ± 0.0 | 1.0 ± 0.1 | | 40 | 年净生产力 Annual net productivity | 0.6 ± 0.0 | 0.3 ± 0.0 | 1.7 ± 0.1 | 0.1 ± 0.0 | 1.9 ± 0.1 | 0.0 ± 0.0 | 1.0 ± 0.1 | 3.0 ± 0.3 | | 年固碳量 Annual carbon storage | 0.3 ± 0.0 | 0.1 ± 0.0 | 0.8 ± 0.0 | 0.1 ± 0.0 | 1.3 ± 0.1 | 0.0 ± 0.0 | 0.5 ± 0.1 | 1.8 ± 0.1 | | 61 | 年净生产力 Annual net productivity | 0.9 ± 0.0 | 0.2 ± 0.0 | 3.0 ± 0.2 | 0.1 ± 0.0 | 4.2 ± 0.2 | 0.0 ± 0.0 | 0.2 ± 0.0 | 4.4 ± 0.2 | | 年固碳量 Annual carbon storage | 0.4 ± 0.0 | 0.1 ± 0.0 | 1.4 ± 0.1 | 0.1 ± 0.0 | 2.0 ± 0.1 | 0.0 ± 0.0 | 0.1 ± 0.0 | 2.1 ± 0.1 |
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