Study on Carbon Storage and Carbon Density of Different Dominant Tree Species Groups in Different Periods
In order to understand the carbon storage and carbon density of different dominant tree species groups in different periods,the dominant tree species in Huangmian Forest Farm of Guangxi were taken as the research ob-jects,and the forest carbon sequestration capacity of Huangmian Forest Farm was estimated by biomass expansion factor method.The results showed as the following three aspects.(1)The total carbon reserves of Huangmian For-est Farm in 2014 and 2019 were 562 040.09 t and 826 000.61 t respectively.In 2019,it increased by 47.0%com-pared with 2014,and the carbon reserves of general broadleaf trees were the largest.(2)The carbon density of Chi-nese fir,pine,fast-growing eucalyptus and general broad-leaved forests increased gradually with the increase of age class,and the carbon density in 2019 increased by 21.7%,61.2%,22.1%and 41.3%,respectively,compared with that in 2014.The carbon density Chinese fir,pine and general broad-leaved forests reached the highest value in over-mature forest,while that of fast-growing eucalyptus was the highest in near-mature forest.(3)The carbon reserves of Chinese fir,pine and general broad-leaved forests increased gradually with the increase of age class,and the carbon reserves of over-mature forest were the largest,while those of fast-growing eucalyptus were the largest in near-ma-ture forest.