江西科学

为探索和估算我国森林碳汇功能提供准确和可靠的基础数据,利用江西省森林资源二类清查资料,运用材积源生物量法对江西省森林碳储量和碳密度进行了研究。森林植被乔木层碳密度的特征为,全省不同森林类型碳密度由大到小依次为硬阔林、针阔混交林、毛竹林、国外松林、杉木林、软阔林、灌木林、马尾松林和经济林;乔木层碳密度随着林龄的增加而增大,随着人口密度的增加而降低。不同森林碳储量由大到小依次为杉木林、马尾松林、硬阔林、灌木林、经济林、毛竹林、针阔混交林、国外松林和软阔林,全省南部和中西部要高于中东部和北部。江西省森林总碳储量为1.5G t C,占全国森林总碳储量的5.33%。

In order to provide exact and credible data for evaluating carbon sink of forests in China.Forest resources second-class inventory materials and Volume-biomass method are used to research carbon storage and density of forests in Jiangxi.Carbon density of different forests from large to small are:Hardwood forests,Mixed Coniferous and Broad leaf forests,Pubescens forests,Exotic pine forests,Fir forests,Softwood forests,Shrubbery,Masson Pine forests and Economic forests.Its carbon density become larger with its age but become smaller with its population density.Soil carbon density is the largest,vegetation is larger,and then is litter.Carbon storage of different forests from large to small are: Fir forests,Masson Pine forests,Hardwood forests,Shrubbery,Economic forests,Pubescens forests,Mixed Coniferous and Broad leaf forests,Exotic pine forests,and Softwood forests.Carbon storage of its southern part and midwest are larger than its east central and northern part.Total carbon storage of forests in Jiangxi is 1.5Gt C and it is taken up 5.33 percent in China.