Distribution characteristics of forest vegetation carbon storage and carbon density in Guixi City
Based on the second-class survey data of forest resources in 2019,the carbon storage of forest vegetation in Guixi City was studied by biomass conversion factor method.The result showed that,the carbon storage of forest vegetation arbor layer in Guixi City was 3.712 5×106 t,and the average carbon density was 27.61 t·hm-2;carbon storage was mainly distributed in broad-leaved mixed forests and bamboo forests,accounting for 41.72%and 23.49%,respectively.The carbon storage of broad-leaved mixed public welfare forests and commercial forests was the highest,with public welfare forests accounting for 8.484×105 t and commercial forests accounting for 7.003×105 t.The broad-leaved mixed forest had the highest carbon storage in natural forests,at 1.499 9×106 t,while the Chinese fir forest has the highest carbon storage in artificial forests,at 1.896×105 t.Among different age groups,middle-aged forests account for the largest carbon storage,accounting for 58.95%,followed by young forests accounting for 24.06%.It was a natural forest with a maximum carbon density of 55.05 t∙hm-2,and the masson pine forest was seriously affected by pine wood nematode disease,resulting in poor forest quality,and the carbon density is also the smallest at 13.51 t∙hm-2.
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万方数据
