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以2017年云南省镇雄县森林资源规划设计调查的数据资料为基础,运用生物量与蓄积量之间关系的生物量转换因子连续函数模型对镇雄县森林植被的生物量进行估算。利用生物量与碳储量的转化率,估算得出镇雄县森林碳储量及碳密度。结果表明:全县森林植被总生物量为1090.52×10~4t,乔木层生物量贡献占主导地位;全县森林植被总碳储量为545.26×10~4t,地类为纯林的碳储量远大于其他地类;全县平均碳密度为14.75t/hm~2,全县碳密度最高位分布在西北部山区,山区碳密度明显大于平原碳密度平均值,碳密度与树种平均年龄的线性关系,符合s型增长曲线。
Based on the data from the survey of forest resources planning and design of Zhenxiong County in Yunnan Province in 2017, the biomass of forest vegetation in Zhenxiong County was estimated using the continuous function model of biomass conversion factor with the relationship between biomass and stock volume. Using the conversion rate of biomass and carbon storage, we estimate the forest carbon storage and carbon density in Zhenxiong County. The results showed that the total biomass of forest vegetation in the whole county was 1090.52 × 10 ~ 4t, and the biomass contribution of arbor layer dominated. The total carbon storage of forest in the whole county was 545.26 × 10 ~ 4t, The average carbon density of the county is 14.75t / hm ~ 2. The highest carbon density of the whole county is distributed in the mountainous area in the northwestern part of China. The carbon density in the mountainous area is obviously larger than the average of the plain carbon density and the linear relationship between the carbon density and the average age of the tree species. In line with the s-type growth curve.