| 郭景怡,岳永杰,邵建勋,李 婧.草类—兴安落叶松渐伐林固碳研究[J].林业调查规划,2023,48(4):124-130 |
| 草类—兴安落叶松渐伐林固碳研究 |
| Carbon Sequestration of Grass-Larix gmelinii Successive Cutting Forest |
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| DOI： |
| 中文关键词: 生物量 碳密度 固碳速率 固碳潜力 草类—兴安落叶松渐伐林 |
| 英文关键词: biomass carbon density carbon sequestration rate carbon sequestration potential grass-Larix gmelinii successive cutting forest |
| 基金项目:内蒙古自治区科技重大专项专题（2019ZD0070402）. |
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| 中文摘要: |
| 以内蒙古大兴安岭草类—兴安落叶松渐伐林为研究对象，分析不同龄组林分植被层的生物量、碳密度、固碳速率、固碳潜力特征及变化趋势。研究结果表明，碳密度与生物量的变化方向一致，植被层生物量和碳密度变化范围分别为71.87~115.08 t/hm2、51.48~68.97 t/hm2，两者各层次大小顺序均为乔木层>枯落物层>灌木层>草本层。植被层固碳速率变化范围为0.96~2.75 t/（hm2·a），随林龄的增加呈逐渐递减趋势。乔木层固碳速率随林龄增加而减小的变化趋势较明显，变化范围为0.26~0.83 t/（hm2·a），灌木层、草本层的固碳速率变化范围为0.19~0.55 t/（hm2·a）和0.39~1.87 t/（hm2·a）。植被层总固碳潜力随林龄增加而呈减小趋势，变化范围为3.61~21.11 t/hm2。 |
| 英文摘要: |
| By taking the grass-Larix gmelinii successive cutting forest in the Great Khingan Mountains of Inner Mongolia as the research object, the characteristics and trends of biomass, carbon density, carbon sequestration rate and carbon sequestration potential of vegetation layer in different age groups were analyzed. The study showed that the change direction of carbon density was consistent with that of biomass, and the change range of biomass and carbon density in vegetation layer was 71.87-115.08 t/hm2 and 51.48-68.97 t/hm2, respectively, and the order of size of each layer was arbor layer>litter layer>shrub layer>herb layer. The carbon sequestration rate of vegetation layer varied from 0.96 to 2.75 t/（hm2·a）, which gradually decreased with the increase of forest age. The carbon sequestration rate of arbor layer decreased significantly with the increase of stand age, and the range was 0.26-0.83 t/（hm2·a）. The range of carbon sequestration rate of shrub layer and herb layer was 0.19-0.55 t/（hm2·a） and 0.39-1.87 t/（hm2·a). The total carbon sequestration potential of vegetation layer decreased with the increase of stand age, and varied from 3.61 to 21.11 t/hm2. |
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