贵州不同林龄华山松人工林生态系统碳储量  

Carbon Storage of Pinus armandii Franch Plantation at Different Stand Ages in Guizhou Province

作　　者：夏婧 

机构地区：[1]贵州省林业调查规划院,贵阳550003

出　　处：《贵州林业科技》2015年第2期6-9,共4页Guizhou Forestry Science and Technology

摘　　要：本研究调查分析了不同林龄华山松人工林生态系统土壤碳含量和碳储量,测定了林地凋落物层和林下植被层及根系碳储量,并用生物量方程法估测了乔木层碳储量。结果表明:华山松人工林生态系统碳储量随着林龄的增加而增加,在8、30和40年生华山松人工林生态系统内,总碳储量分别为104.9 t·hm-2、136.67t·hm-2和176.89 t·hm-2,乔木层碳储量所占比重分别为5.9%、14.97%和28.48%,土壤层碳储量所占比重为90.73%、72.98%和68.01%。乔木层和土壤层碳储量的正向积累是导致不同林龄华山松人工林生态系统碳储量逐年增加的主要因素。Pinus armandii Franch is one of the most important tree species used for plantation. So the research of carbon storage of pinus armandii Franch plantation is of significance. In this study,the carbon storage of Pinus armandii Franch stands at different stand ages of 8,30 and 40 years were investigated and calculated. The results showed that total carbon storage at different stand ages of 8,30 and 40 years were estimated to be 104. 9,136. 67 and 176. 89 t · hm- 2,respectively. In these three stands,the carbon storage of the tree layer occupied 5. 9%,14. 97% and 28. 48%,respectively,and that of the soil layer occupied 90. 73%,72. 98% and 68. 01%,respectively. The positive accumulation of tree and soil layer is the main factors which lead to the increasing carbon accumulation of Pinus armandii Franch ecosystem at different ages.

关 键 词：华山松人工林 生态系统 碳储量 

分 类 号：S718.56[农业科学—林学]