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首页> 美国卫生研究院文献>Scientific Reports >Dynamics of biomass and carbon sequestration across a chronosequence of Caragana intermedia plantations on alpine sandy land
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Dynamics of biomass and carbon sequestration across a chronosequence of Caragana intermedia plantations on alpine sandy land

机译：高寒沙地中间柠条锦鸡儿人工林生物量和碳固存动态

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摘要

Considering the variations in carbon concentrations among different plant components can significantly improve carbon storage estimates. The aim of this study was to estimate the biomass and carbon storage and sequestration in Caragana intermedia Kuang et H. C. Fu plantations for six different ages. The biomass and carbon sequestration in shrub biomass were quantified using a destructive method that involved analysing the carbon concentrations in the leaves, branches, stem bark, stem wood, roots > 5 mm, 2 mm < roots ≤ 5 mm, and roots ≤ 2 mm. The biomass and biomass carbon density of the C. intermedia plantations increased with the age of the stands. The biomass carbon density of the woody components was at its maximum in the 30-year-old plantation (14.27 ± 2.71 t·ha−1), indicating that C. intermedia plantations in alpine sandy land are an important carbon pool. The carbon accumulation rate of the woody components was higher during the early stages of plantation development. The carbon concentrations differed significantly among the components but changed only slightly with the stand age. The weighted mean carbon concentration of the woody components, which was found to be 44%, must be considered when estimating the long-term carbon pools in C. intermedia plantations.
机译：考虑不同植物成分之间碳浓度的变化可以显着改善碳储量估算。这项研究的目的是估计六个不同年龄的中间锦鸡儿（Caragana intermedia）Kuang等人在H. C. Fu人工林中的生物量，碳储量和固存。灌木生物量中的生物量和固碳量采用破坏性方法进行定量，该方法涉及分析叶片，树枝，茎皮，茎木，根的> 5 mm，2 mm <根≤5 mm和根≤2 mm中的碳浓度。 。中间锦鸡儿人工林的生物量和生物量碳密度随着林分年龄的增长而增加。在30年的人工林中，木本成分的生物量碳密度最高（14.27。±2.71 t·ha -1 ），表明高寒沙地中间梭杉人工林是人工林。重要的碳库。在人工林发展的早期，木质成分的碳积累速率较高。各组分之间的碳浓度差异显着，但随着林龄的变化而变化很小。估计中间介壳树人工林的长期碳库时，必须考虑木质成分的加权平均碳浓度（发现为44％）。

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