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对平均年龄为40a的天然赤松林进行了生物量的研究.结果表明:当密度为1500～2000株/hm~2时;赤松林总生物量为127.389t/hm~2,接近最大值.其中乔木层为127.043t/hm~2;灌木层为0.178t/hm~2;草本层为0.168t/hm~2.此时,乔木层净生产量为17.117t/(hm~2·a).随着密度梯度的变化、乔木层、灌木层、草本层生物量以及乔木层净生产量均发生有规律的变化,而且,乔木层生物量与灌木草本生物量之间还具有互补关系.
The biomass of natural Pinus densiflora plantation with an average age of 40 years was studied.The results showed that the total biomass of Pinus koraiensis plantation reached 127.389 t / hm ~ 2 when the density was 1500-2000 plants / hm ~ 2, which was close to the maximum value The tree layer was 127.043t / hm ~ 2, the shrub layer was 0.178t / hm ~ 2, and the herb layer was 0.168t / hm ~ 2. At this time, the net production of arbor layer was 17.117t / (hm ~ 2 · a). With the change of density gradient, the biomass of arbor, shrub layer, herbaceous layer and the net production of arbor layer all changed regularly, and there was a complementary relationship between arbor layer biomass and shrub herb biomass.