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Position: Home > Articles > BIOMASS OF NATURAL FORESTS OF PINUSDENS IFLORA IN YANBIAN AREA Journal of Northeast Forestry University 1996 (5) 26-32

延边地区天然赤松林生物量的研究

作  者:
李英洙;金永焕;刘继生;王成;金玉善
单  位:
延边农学院
关键词:
天然赤松林;密度;生物量;净生产量
摘  要:
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.
译  名:
BIOMASS OF NATURAL FORESTS OF PINUSDENS IFLORA IN YANBIAN AREA
作  者:
Li Yingzhu Jin Yonghuan Liu Jisheng Wang Cheng Jin Yushan(Yanbian Agricutural College, Yanji. 133000, Jilin Province. China)
关键词:
Natural forests; Pinus densiflora; Density; Biomass; Net productivity
摘  要:
The biamass of 40 years old natural Pinus densiflora stands were measuredby different stand densities. The amount of biomass was close to a maximumwhile the stand density was 1500-2000 stems/hm2. The total amount of biamasswas 127. 389 t/hm2, in which that in tree layer, shrub layer and herb layer was127. 043 t/hm2. 0. 178 t/hm2 and 0. 168 t/hm2 respectively. The net productivity oftree layer was 17. 1 17 t/ hm2/yr. The amounts of biomass in tree, shrub and herblayers and the average net productivity had a regular change with densitygradient. With Change in density gradient, there was a complementary relationbetween tree and shrub in biomass.

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