| 摘要: |
| 为研究不同森林类型植被碳的分布特征，以韶关市 467 个样点的森林植被数据为基础，分析不同植被类型、不同龄组的森林碳储量和碳密度特征，估算森林固碳潜力。结果表明：不同森林植被总碳储量为 3 047.71×104 t，平均碳密度为 65.20 t · hm-2，各植被类型的碳储量大小排序为常绿阔叶林 > 针叶林 > 竹林 > 阔叶混交林 > 针阔混交林，其中常绿阔叶林和针叶林的碳储量比重较大，达到 68.92%。不同龄组的森林碳储量大小依次为中龄林 > 幼龄林 > 近熟林 > 成、过熟林；随着龄组的增大，森林植被碳密度表现出增大的趋势。各类型森林植被总固碳潜力约为 3 955.65×104 t，其中针叶林和常绿阔叶林的固碳潜力较高，占比达到 92.57%，是未来森林固碳增汇的主体。 |
| 关键词: 森林植被 碳密度 碳储量 固碳潜力 |
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| Vegetation Carbon Status of Different Types of Forest Ecosystems in South China |
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BAI Kunli1, CHEN Leiyi2, Deng Hongtao1, LI Yimin1, HE Jinquan1
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1.Guangdong Lingnanyuan Exploration and Deesign Co., Ltd.;2.Guangdong Eco-Engineering Polytechnic
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| Abstract: |
| In order to study the distribution characteristics of vegetation carbon in different forest types, the forest carbon storage and carbon density characteristics of different vegetation types and different age groups were analyzed based on the forest vegetation data of 467 sampling points in Shaoguan City, and the forest carbon sequestration potential was estimated. The results showed that the total carbon storage of different forest vegetation was 3 047.71×104 t, and the average carbon density was 65.20 t · hm-2. The order of carbon storage of each vegetation type is evergreen broad-leaved forest > coniferous forest > bamboo forest > broad-leaved mixed forest > coniferous and broad-leaved mixed forest, among which evergreen broad-leaved forest and coniferous forest have a large proportion of carbon storage, reaching 68.92 %. The order of forest carbon storage in different age groups was middle-aged forest > young forest > near-mature forest > mature and over-mature forest. With the increase of age groups, forest vegetation carbon density showed an increasing trend. The total carbon sequestration potential of all types of forest vegetation is about 3 955.65×104 t, of which coniferous forest and evergreen broad-leaved forest have higher carbon sequestration potential, accounting for 92.57%, and will be the main source of forest carbon storage increase in the future. |
| Key words: forest vegetation carbon density carbon storage carbon sequestration potential |
