通过测定 9年生马褂木人工林生物量和建立其估算模型 ,分析了生物量分配规律及林分生产力水平。结果表明 :人工林总生物量为64.538.t/hm2 ,乔木层、林下植物层和凋落物所占比例分别为 :93.4 0 %、3.63%和 2 .97%。乔木层各器官生物量大小顺序依次为 :干、根、枝、皮、叶 ,所占比例依次为 :62 .79%、 16. 61%、 11. 11%、7.12 %、2 .4 7%。林分净生产力为7.17t/hm2 ·a,略低于中、北亚热带地区森林植被的平均净生产力 By measuring the biomass of 9-year-old Lina sativa plantation and establishing its estimation model, the biomass allocation law and stand productivity were analyzed. The results showed that the total biomass of plantation was 64.538.t / hm2, and the proportions of arbor, understory plant and litter were 93.4%, 3.63% and 2.97%, respectively. The order of the biomass of each organ in the arbor layer was dry root, branch, skin and leaf, in the order of 62.79%, 16.61%, 11.11%, 7.12%, 2.47% . The net productivity of the stand is 7.17t / hm2 · a, slightly lower than the average net productivity of forest vegetation in the middle and northern subtropics