马尾松人工林群落生物量研究

Research on the Biomass of Pinus massoniana Plantations

通过对将乐县5年生马尾松人工林生物量空间分布格局进行研究。结果表明,马尾松人工林生物总量为35.512 t/hm2,其中乔木层、草本层和凋落物层生物量分别为28.608、3.861、3.043 t/hm2,分别占总生物量的80.56%、10.87%及8.57%;乔木层各器官生物量占乔木层总生物量的比例大小依次为:干(40.90%)>枝(25.73%)>根(23.87%)>叶(9.50%);就乔木层地上部分生物量分配格局而言,马尾松枝和叶主要分布在1～3 m区分段,而干则主要分布在0～2 m区分段。

The spatial distribution patterns of biomass of 5-years Pinus massoniana plantation were investigated in Jiangle County.The result indicated that the total biomass of P.massoniana was 35.512 t/hm2,the biomass of tree layer,undergrowth vegetation layer and litter layer were 28.608 t/hm2,3.861 t/hm2,3.043 t/hm2,respectively,which accounted for 80.56%,10.87%,8.57%,respectively.The biomass distribution of each organ in tree layer followed the order of stems（40.90%）〉branches（25.73%）〉roots（23.87%）〉 leaves（9.50%）.In terms of the biomass distribution patterns above ground in tree layer,the biomass distribution of branches and leaves of P.massoniana were mainly in 1-3 m section,whereas,the biomass distribution of stem were mainly in 0-2 m section.