| 摘要: |
| 为了解森林资源的动态变化是森林经营和研究的基础, 研究通过对 2018—2023 年间韶关市乔
木林面积、 碳储量和碳密度进行详细分析, 揭示了不同森林类型和龄组在碳储量方面的变化趋势。 结果
显示, 尽管乔木林的总面积从 122. 17×10
5
hm
2 减少到 117. 11×10
5
hm
2
, 但碳储量增加了 8. 57%, 达到
4 231. 61×10
5
t。 阔叶混交林的碳储量明显增加了 70. 52×10
5
t; 针叶混交林和针阔混交林的碳密度分别为
53. 11 t·hm
-2 和 51. 39 t·hm
-2
, 明显高于乔木林的平均碳密度 39. 72 t·hm
-2
, 表明了这些森林类型在碳
吸收和储存方面的高效性以及在碳储量管理中的重要性。 中龄林、 幼林龄和近熟林面积之和占比高达
82. 11%, 中龄林和近熟林 2023 年的碳储量之和占乔木总碳储量的 63. 82%, 表明韶关市的森林年龄结构
合理, 具有较大的碳储量和碳增长潜力。 此外, 韶关市天然林的碳密度 5 年间增加了 5. 66 t·hm
-2
, 而人
工林则降低了 1. 63 t·hm
-2
, 这表明天然林在碳储量管理中具有更高的效率和潜力。 基于这些发现, 建议
加强天然林保护和多树种混交造林, 以提升碳储量和应对气候变化。 |
| 关键词: 乔木林 碳储量 碳密度 林龄 |
| DOI： |
| 分类号: |
| 基金项目: |
|
| Dynamic study on carbon storage and carbon density of forest vegetation in Shaoguan CityCity |
|
zhang liang
|
|
Guangdong Forestry Survey and Planning Institute
|
| Abstract: |
| This study provides a detailed analysis of the area, carbon storage, and carbon density of arbor forests in Shaoguan City from 2018 to 2023, highlighting the trends in carbon storage across different forest types and age groups. Despite a reduction in the total area of arbor forests from 122.17×105 hm2 to 117.11×105 hm2, carbon storage increased by 8.57%, reaching 2929.94×105tC. Notably, the carbon storage of broadleaf mixed forests rose significantly by 70.52×105tC. The carbon densities of coniferous mixed forests and coniferous-broadleaf mixed forests were 53.11 tC/hm2 and 51.39 tC/hm2, respectively, which are significantly higher than the average carbon density of arbor forests at 39.72 tC/hm2. This underscores the high efficiency of these forest types in carbon absorption and storage, as well as their critical role in carbon management. The combined area of middle-aged, young, and near-mature forests accounted for 82.11% of the total forest area, with the carbon storage of middle-aged and near-mature forests in 2023 comprising 63.82% of the total carbon storage of arbor forests. This indicates a well-balanced age structure in Shaoguan City’s forests, with substantial potential for carbon storage and growth. Additionally, the carbon density of natural forests in Shaoguan City increased by 5.66 tC/hm2 over five years, while that of artificial forests decreased by 1.63 tC/hm2. This highlights the superior efficiency and potential of natural forests in carbon storage management. Based on these findings, we recommends enhancing the protection of natural forests and promoting mixed-species afforestation to boost carbon storage and combat climate change. These results provide valuable scientific insights for the forest management of Shaoguan City and offer important references for global forest carbon storage research. |
| Key words: arboreal forest carbon storage carbon density forest age |
