广西生态公益林主要树种植物热值与能量积累  

Calorific value measurement and energy accumulation estimation on main tree species for ecological public welfare forest in Guangxi Province

作　　者：张伟 蔡会德 农胜奇 陈宝晖 方颖琨 

机构地区：[1]广西壮族自治区林业勘测设计院,南宁530011

出　　处：《林业科技开发》2014年第1期30-33,共4页China Forestry Science and Technology

基　　金：广西林业科技项目(编号:桂林科字[2005]65)

摘　　要：应用氧弹式热量计进行广西公益林主要树种植物热值的测定,结合森林资源连续清查样地资料,估计广西公益林能量积累及其分配。结果表明：不同树种植物热值有差异,针叶林的热值略高于阔叶林,同一树种不同器官的热值亦有差异,叶的热值高于其他器官的热值,但植物热值的变幅多在18.19～22.72kJ/g,测定结果与相关文献报道结果相符。广西公益林林分能量累积19092亿MJ,按优势树种组分：杉木848亿MJ,占4.4%;松类1754亿MJ,占9.2%;阔叶树16490亿MJ,占86.4%。The plant calorific value of main tree species for ecological public welfare forest in Guangxi Province was meas- ured by the application of oxygen bomb calorimeter. The energy accumulation and distribution of ecological public welfare forest in Guangxi were estimated combined with continuous forest inventory sample data. The results showed that the plant calorific values of different tree species were different. The calorific value of coniferous forest was slightly higher than that of the hardwood and it was also different among different organs in the same tree species. The calorific value of leaf was higher than other organs, but the amplitude were in the range of 18.19 -22.72 kJ/g, the experimental results were eonsentaneous compared with the results reported in the related literature. The energy accumulation of ecological public welfare forest in Gnangxi was 1. 909 2 trillion MJ. The energy accumulation of Chinese fir, pine and hardwood were 84.8 billion MJ, 175.4 billion MJ and 1. 649 0 trillion MJ, accounted for 4.4% , 9.2% and 86.4%.

关 键 词：植物热值 能量 森林资源连续清查 公益林 

分 类 号：S759.2[农业科学—森林经理学]