| 延边地区天然赤松林生物量的研究 |
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| 引用本文： | 李英洙,金永焕.延边地区天然赤松林生物量的研究[J].东北林业大学学报,1996,24(5):24-30. |
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| 作者姓名： | 李英洙 金永焕 |
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| 作者单位： | 延边农学院!延吉133000 |
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| 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。 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、灌木怪、草本层生物量以及乔木层净生产量均发生有规律的变化，
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| 关 键 词： | 赤松林 密度 生物量 净生产量 |
BIOMASS OF NATURAL FORESTS OF PINUSDENS IFLORA IN YANBIAN AREA |
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| Li Yingzhu Jin Yonghuan Liu Jisheng Wang Cheng Jin Yushan.BIOMASS OF NATURAL FORESTS OF PINUSDENS IFLORA IN YANBIAN AREA[J].Journal of Northeast Forestry University,1996,24(5):24-30. |
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| Authors: | Li Yingzhu Jin Yonghuan Liu Jisheng Wang Cheng Jin Yushan |
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| Abstract: | 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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| Keywords: | Natural forests Pinus densiflora Density Biomass Net productivity |
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