| 摘要: |
| 【目的】研究杉木的生长过程，编制杉木碳储量密度控制图，为林业生产提供一种操作方便的碳储量密度控制图编制方法。【方法】以福建省将乐林场的杉木人工林为研究对象，利用1996和2007年两期森林资源规划设计调查数据和固定样地资料，先确定杉木林分3个地位级的划分标准，再根据已有的杉木林蓄积量与生物量之间的关系式，取含碳率为0.5，推算杉木林的生物量和碳储量，最后运用数学建模的方法建立不同立地条件、不同林分密度的杉木碳储量估计模型。【结果】编制了福建将乐林场不同地位级的杉木碳储量林分密度控制图，图中包含了等树高线、等直径线、等疏密度线、最大密度线和自然稀疏线；举例说明了该图的使用方法，对于林分平均直径14.0 cm、林分密度2 000株/hm2的Ⅱ地位级的杉木人工林而言，其林分碳成熟龄为20年，此时林分碳储量为57.4 t/hm2。【结论】编制的杉木碳储量密度控制图可用来预估福建将乐林场杉木碳储量，但其精度还有待提高。 |
| 关键词: 杉木林 碳储量 地位级 密度控制图 |
| DOI： |
| 分类号: |
| 基金项目:“十二五”国家科技支撑计划项目“南方集体林区生态公益林可持续经营技术研究与示范”（2012BAD22B05） |
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| Establishment of carbon storage density management diagram for Chinese fir in Jiangle Forest Farm of Fujian Province |
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XIANG Yu-guo,ZHENG Xiao-xian,LIU Bo-yun,et al
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| Abstract: |
| 【Objective】This paper studied the growth process of Chinese fir and established its carbon storage density control diagram to provide a convenient method for preparation of forestry production.【Method】The research object was the Chinese fir plantation in Jiangle Forest Farm of Fujian Province.Forest resource planning investigation data collected in 1996 and 2007 and fixed sample data were used to determine the criteria for the classification.Based on the known relationship of the Chinese fir between stand volume and biomass and a carbon content rate of 0.5,biomass and carbon storage were calculated.Mathematical modeling method was used to establish carbon storage estimation model for Chinese fir forests with different site conditions and different stand densities.【Result】A carbon storage stand density management diagram containing equal tree height line,equal diameter line,equal density of stocking line,maximum density line and the self-thinning line for Chinese fir with different positions in Jiangle Forest Farm of Fujian Province was established.Examples using the graph method were provided.For grade Ⅱ Chinese fir plantation with stand average diameter of 14.0 cm and stand density of 2 000 tree/hm2,the forest carbon mature age was 20 years,and the forest carbon storage was 57.4 t/hm2.【Conclusion】The established carbon storage density control diagram can be used to predict carbon storage of Chinese fir in Jiangle Forest Farm of Fujian Province,and more efforts should be made to improve its accuracy. |
| Key words: Chinese fir plantation carbon reserves site class the density management diagram |
