云南省镇雄县森林植被碳储量及碳密度研究

Research on carbon storage and carbon density of forest vegetations in Zhenxiong county

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。

In this paper, the forest resources in Zhenxiong county of Yunnan province in 2017. Estimating the biomass of forest vegetation in Zhenxiong county by using the continuous function model of biomass conversion factor.The carbon storage and carbon density of forest in Zhenxiong county were estimated by the conversion rate of biomass and carbon storage.The carbon storage and carbon density of forest in Zhenxiong county were estimated by the conversion rate of biomass and carbon storage.The results show：the total biomass of forest vegetation was 1090.52×10~4t, tree layer biomass contribution dominates;the total carbon storage of forest vegetation in the county was 545.26×10~4t, the carbon storage in the forest was much larger than that in other areas; the average carbon density is 14.75t/hm^2, the county＇s highest carbon density is in the northwest mountains, the carbon density of mountainous area is obviously larger than the average value of plain carbon density, the linear relationship between the carbon density and the average age of tree species was in accordance with the growth curve of stype.