| 邱思玉,张一鸣,赵任义,胡雪凡.北京市森林植被碳储量和固碳潜力评估[J].林业调查规划,2026,51(4):59-67 |
| 北京市森林植被碳储量和固碳潜力评估 |
| Assessment of Carbon Storage and Carbon Sequestration Potential of Forest Vegetation in Beijing |
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| DOI： |
| 中文关键词: 森林植被碳储量 固碳潜力 生物量扩展因子法 北京市 |
| 英文关键词: forest vegetation carbon storage carbon sequestration potential biomass expansion factor
method Beijing |
| 基金项目:北京市重点实验室项目(YKYQN202502). |
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| 中文摘要: |
| 评估北京市森林植被碳储量和固碳潜力对发挥森林碳库作用具有重要意义。本研究利用北京市第九次园林绿化资源专业调查数据, 结合树种和龄组的生物量模型, 采用生物量扩展因子法,对北京市森林植被碳储量和固碳潜力进行定量评估。结果表明, 北京市森林植被总碳储量为1.430 5×107 t,总碳密度13.08 t/hm2,乔木林地为核心碳汇载体,碳储量占83.51%。各林龄中幼龄林面积与碳储量最高;碳密度随龄组递增,由10.70 t/hm2升至46.45 t/hm2。优势树种中柞树碳储量最大,杨树碳密度最高,侧柏、油松面积较大但碳密度偏低。全市森林总固碳潜力为1.631 9×107~1.730 2×107 t,乔木林地贡献超89%,幼龄林阶段的其他软阔类、柞树、侧柏是固碳能力提升的核心对象。本研究创新地揭示北京市森林“幼中龄林主导的结构特征”与“未来碳汇快速释放”的关联机制,明确其他软阔类、柞树、侧柏是实现这一潜力的关键经营对象,为北京市森林植被碳储量和固碳潜力提供科学评估,为森林碳汇管理及气候变化应对策略提供数据支持,助力“双碳”目标实现。 |
| 英文摘要: |
| Assessing forest vegetation carbon storage and sequestration potential is of great significance for leveraging the role of forests as carbon sinks. Based on the data from the Ninth Professional Survey of Garden and Greening Resources, this study quantitatively evaluated the carbon storage and sequestration potential of forest vegetation in Beijing using biomass models of tree species and age groups and the biomass expansion factor method. The results showed that the total carbon storage of forest vegetation in Beijing was 1.430 5×107 t, with a mean carbon density of 13.08 t/hm2. Forestland served as the core carbon sink carrier, accounting for 83.51% of the total carbon storage. Young forests had the largest area and the highest carbon storage. Carbon density increased progressively with age class, from 10.70 t/hm2 in young forests to 46.45 t/hm2 in over-mature forests. Among dominant tree species, Quercus spp. exhibited the highest carbon storage, while Populus spp. showed the highest carbon density. Although Platycladus orientalis and Pinus tabuliformis covered relatively large areas, their carbon densities were below the forestland average. The total carbon sequestration potential of Beijing′s forests ranged from 1.631 9×107 to 1.730 2×107 t, with forestland contributing over 89% of this potential. Other soft broadleaved species, Quercus spp., and Platycladus orientalis at the young stand stage were the core targets for improving carbon sequestration capacity. The innovation of this study lies in revealing the correlation mechanism between the “young and middle-aged forest dominated structure” and the “rapid future carbon sink release”in Beijing′s forests, and identifying soft broad-leaved species in young forests, Quercus spp., and Platycladus orientalis as key management targets for realizing this potential. This study provides a scientific assessment of the carbon storage and sequestration potential of forest vegetation in Beijing, offering data support for forest carbon sink management and climate change response strategies, and contributing to the achievement of the “carbon peaking and carbon neutrality” goals. |
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