| 大兴安岭过火区不同森林生态系统碳储量的变化 |
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| 引用本文： | 屈红军,孙晓新.大兴安岭过火区不同森林生态系统碳储量的变化[J].东北林业大学学报,2021,49(1):112-116. |
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| 作者姓名： | 屈红军 孙晓新 |
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| 作者单位： | 东北林业大学,哈尔滨,150040;东北林业大学,哈尔滨,150040 |
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| 基金项目： | 黑龙江省博士后科研启动资金项目 |
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| 摘 要： | 以1987年"5.6"森林大火过火区6种不同森林生态系统类型为研究对象,采用标准木法和收获法,分析不同生态系统在火干扰27 a后的植被碳储量。结果表明:不同森林生态系统类型的植被碳储量存在差异,相同森林群落类型中不同组分的植被碳储量差异也较大,其中乔木层和凋落物层是森林植被碳储量的主要贡献者;6种不同森林生态系统在火烧干扰27 a后的植被碳储量为23.17~54.06 t/hm^2,碳储量由大到小的顺序为兴安落叶松人工林、樟子松次生林、兴安落叶松次生林、樟子松人工林、白桦次生林(沟谷)、白桦次生林(坡中);植被碳储量恢复度从大到小的依次为兴安落叶松人工林、白桦次生林(沟谷)、白桦次生林(坡中)、兴安落叶松次生林、樟子松次生林、樟子松人工林,分别恢复到同林型成熟林分的49%、43%、36%、35%、33%和25%;兴安落叶松人工林碳储量最高,恢复效果最好。不同森林生态系统类型碳储量与其对应的成熟林碳储量的巨大差异,说明随着森林生态系统的恢复将继续积累大量生物量碳,具有潜在碳汇效应。
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| 关 键 词： | 大兴安岭 森林生态系统 碳储量 火干扰 |
Changes of Carbon Storage ofForest Ecosystems in"5. 6"Forest Fire Area in Daxing 'an Mountains |
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| Qu Hongjun,Sun Xiaoxin.Changes of Carbon Storage ofForest Ecosystems in"5. 6"Forest Fire Area in Daxing 'an Mountains[J].Journal of Northeast Forestry University,2021,49(1):112-116. |
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| Authors: | Qu Hongjun Sun Xiaoxin |
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| Institution: | (Northeast Forestry University,Harbin 150040,P.R.China) |
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| Abstract: | With six different restored forest ecosystems in the "5.6" forest firearea in 1987 were studied, the carbon storage recovery effect of different ecosystems after 27-a fire disturbance was studied by using standard wood method and harvest method. The carbon storage of vegetation varied in different forest ecosystems. In the same forest community, the carbon storage of different components are also different, among which tree layer and litter layer are the main contributors. After 27-a restoration, the carbon storage range of vegetation in six different forest ecosystems are 23.17-54.06 t/hm^2. The sequence of vegetation carbon storage of six different forest ecosystems in descending order was Larix gmelinii plantation, Pinus sylvestris secondary forest, L. gmelini secondary forest, P. sylvestris plantation, Betula platyphylla secondary forest(valley) and B. platyphylla secondary forest(middle slope), respectively. The descending order of the recovery degree of vegetation carbon reserves was L. gmelinii plantation, B. platyphylla secondary forest(valley), B. platyphylla secondary forest(slope), L. gmelini secondary forest, P. sylvestris secondary forestand P. sylvestris var. mongolica plantation, which were 49%, 43%, 36%, 35%, 33% and 25% of mature forest of the same type, respectively. L. gmelinii plantation has the highest carbon storage and the best restoration effect. The great difference of the carbon storage betweendifferent forest ecosystems and their corresponding mature forests indicates that these restored forests will continue to accumulate a large amount of biomass carbon in the future with potential carbon sink effect. |
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| Keywords: | Daxing’an Mountains Forest ecosystem Carbon storage Fire disturbance |
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