【摘要】 以吉林省东部山地林区长白落叶松为对象,研究地上生物量异速生长模型,利用生物量与蓄积量关系,估算不同林龄长白落叶松林碳储量与碳密度,结果表明:长白落叶松林地上总平均生物量为215.021 kg;树干生物量占地上总生物量67.15%;枝、叶、皮分别占17.09%、6.00%、9.76%。树干生物量异速生长方程为Y=0.059DBH1.32.171H0.420;树皮、活枝、针叶和地上总生物量可以通过Y=a DBH1.3b进行预测。生物量与蓄积相关方程分别为:树干y=448.68 x+4.433 1;活枝y=105.21 x+3.944 9;针叶y=32.89 x+2.639 8;树皮y=57.39 x+3.099 7,相关系数均大于0.9。长白落叶松不同林分生物量、碳储量、碳密度范围分别为2.38×106~7.52×106t、1.19×107~3.76×107t和38.89~69.37 t·hm-2。更多还原

【Abstract】 The above-ground biomass allometric model was researched by choosing the Larix olgensis of the eastern mountain land forest area in Jilin province. The carbon reserve and density of different age of stand were estimated by the relation of biomass and stand volume. The result showed that overall average ground biomass of Larix olgensis was 215. 021 kg. The trunk biomass accounted for the total above-ground biomass of 67. 15%,followed by the branches,leaves,bark accounted for 17. 09%,6. 00%,9. 76%. The trunk biomass allometric equation was Y = 0. 059 DBH1. 32. 171H0. 420. The total biomass of bark,branch,leaves and overground can be predicted through Y = a DBH1. 3b. The biomass and stand volume dependent equation was y = 448. 68 x + 4. 433 1( trunk),y = 105. 21 x + 3. 944 9( branch),y = 32. 89 x + 2. 639 8( leaf),y = 57. 39 x + 3. 099 7( bark). Correlation coefficient was between more than 0. 9. distribution of the biomass,carbon reserve,carbon density range of different forest stand of Larix olgensis was 2. 38 × 106~ 7. 52 × 106 t,1. 19 × 107~3. 76 × 107 t and 38. 89 ~ 69. 37 t·hm-2,respectively.更多还原