李佳聪, 朱春雨, 郭波, 曹建生, 齐可亮, 廉诗启. 太行山典型流域森林生态系统碳储量分布特征[J]. 中国生态农业学报 (中英文), 2024, 32(8): 1−9. DOI: 10.12357/cjea.20240089
引用本文: 李佳聪, 朱春雨, 郭波, 曹建生, 齐可亮, 廉诗启. 太行山典型流域森林生态系统碳储量分布特征[J]. 中国生态农业学报 (中英文), 2024, 32(8): 1−9. DOI: 10.12357/cjea.20240089
LI J C, ZHU C Y, GUO B, CAO J S, QI K L, LIAN S Q. Distribution characteristics of carbon storage in forest ecosystems in typical watersheds of Taihang Mountains Basin[J]. Chinese Journal of Eco-Agriculture, 2024, 32(8): 1−9. DOI: 10.12357/cjea.20240089
Citation: LI J C, ZHU C Y, GUO B, CAO J S, QI K L, LIAN S Q. Distribution characteristics of carbon storage in forest ecosystems in typical watersheds of Taihang Mountains Basin[J]. Chinese Journal of Eco-Agriculture, 2024, 32(8): 1−9. DOI: 10.12357/cjea.20240089

太行山典型流域森林生态系统碳储量分布特征

Distribution characteristics of carbon storage in forest ecosystems in typical watersheds of Taihang Mountains Basin

  • 摘要: 森林生态系统是陆地生态系统的主要碳库, 准确评估其碳储量, 探明其分布特征对区域碳汇管理及生态修复具有重要意义。本文以太行山区典型流域—柳林河流域的森林生态系统为研究对象, 基于样地清查法, 对区域内森林生态系统碳密度和碳储量分布特征展开研究。结果表明: 1) 柳林河流域森林生态系统碳密度为20.8 kg·m−2, 碳储量为2.95×106 t(C); 2)在空间上, 随海拔升高森林生态系统碳密度由15.1 kg·m−2持续增加到27.3 kg·m−2, 碳储量呈先增大后降低的变化趋势, 并于700~900 m海拔处达到最大, 阴坡碳密度和碳储量均高于阳坡; 3)在垂直组成上, 灌木林与阔叶林中土壤层(0~100cm)碳储量分别占森林总碳储量的77.9%和51.4%, 而在针叶林中植被层碳储量占主导地位, 占比为53.9%, 各林型中土壤层碳密度和碳储量均随着土壤深度的增加而减少, 表层土壤(0~20 cm)碳储量占土壤层(0~100cm)总碳储量的63.4%。柳林河流域森林生态系统碳密度与全国森林生态系统平均碳密度仍存在一定差距, 未来应继续加强该区域特别是低海拔以及阳坡区域森林的经营管理和表层土壤的保护修复, 以提升森林固碳增汇能力。该研究可为太行山流域碳储量评估、生态修复及多因素分析提供数据和理论支撑。

     

    Abstract: Forest ecosystem is the main carbon pool of terrestrial ecosystem. It is of great significance to accurately assess the carbon storage of forest ecosystem and find out its distribution characteristics for regional carbon sink management, scientific formulation of ecological environment protection and land use policies, promotion of regional low-carbon sustainable development, and realization of “carbon neutrality”. In this study, the forest ecosystem in the Liulin River Basin, a typical watershed in the Taihang Mountain region, was taken as the research object. Based on the sample land inventory method, the distribution characteristics of carbon density and carbon storage of forest ecosystem in the region were studied. The results showed that: 1) The carbon density of the forest ecosystem in the Liulin River Basin was 20.8 kg·m−2, and the carbon storage was 2.95×106 t(C). 2) Spatially, the carbon density of forest ecosystem showed an increasing trend with the increase of altitude. The carbon density continued to increase from 15.1 kg·m−2 to 27.3 kg·m−2 with the increase of altitude. The carbon storage showed a trend of first increasing and then decreasing with the increase of altitude, and reached the maximum at the altitude of 700−900 m. Besides, the carbon density of the shady slope was higher than that of the sunny slope, and the carbon storage of the shady slope was also higher than that of the sunny slope. 3) In terms of vertical composition, the carbon storage in the soil layer (0−100 cm) in the shrub wood and broad-leaved forest accounted for 77.9% and 51.4% of the total carbon storage in the forest ecosystem, respectively, while the carbon storage in the vegetation layer was dominant in the coniferous forest, accounting for 53.9%. In coniferous forest and broad-leaved forest, the carbon density and carbon storage of the tree layer were significantly higher than those of other vegetation layers. The carbon density and carbon storage in the soil layer of each forest type decreased with the increase of soil depth, and the carbon storage in surface soil (0−20 cm) accounted for 63.4% of the total carbon storage in the soil layer (0−100cm). There is still a gap between the carbon density of forest ecosystem in the Liulin River Basin and the average carbon density of forest ecosystem in China. The management of forest ecosystem and the protection and restoration of surface soil in this region, especially in the low-altitude and sunny slope area, should be strengthened in the future, so as to enhance the capacity of forest carbon sequestration and sink. This study not only provides data and theoretical support for carbon storage assessment, ecological restoration and multi-factor analysis in the Taihang Mountains, but also provides data basis and theoretical basis for the management and afforestation of forest ecosystem and carbon sequestration in the Taihang Mountains and similar regions.

     

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