Diversity Changes Study of Natural Restoring at Early Stage After Fallow on Vegetation in Clear-Cutting Forestland of Man-Made Sand-Fixation Forest of Pinus sylvestris var.mongolica

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Diversity Changes Study of Natural Restoring at Early Stage After Fallow on Vegetation in Clear-Cutting Forestland of Man-Made Sand-Fixation Forest of Pinus sylvestris var.mongolica

更新时间：2024-11-07

- Diversity Changes Study of Natural Restoring at Early Stage After Fallow on Vegetation in Clear-Cutting Forestland of Man-Made Sand-Fixation Forest of Pinus sylvestris var.mongolica
- Issue 1, Pages: 103-106(2007)
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- Published：2007
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Diversity Changes Study of Natural Restoring at Early Stage After Fallow on Vegetation in Clear-Cutting Forestland of Man-Made Sand-Fixation Forest of Pinus sylvestris var.mongolica[J]. 2007, (1): 103-106.
DOI：

Diversity Changes Study of Natural Restoring at Early Stage After Fallow on Vegetation in Clear-Cutting Forestland of Man-Made Sand-Fixation Forest of Pinus sylvestris var.mongolica[J]. 2007, (1): 103-106. DOI：

摘要

采用样方法对辽宁章古台地区樟子松固沙林采伐迹地撂荒后1-5 a内自然恢复植被组成及多样性特征进行了定位研究

结果表明：采伐迹地自然恢复形成的自然植被群落共有49种植物

分属于26个科

以菊科和乔本科植物最为丰富。1a采伐迹地、2a采伐迹地、3a采伐迹地和5a采伐迹地植物群落的Simpson多样性指数分别为0.681

0.792

0.845和0.870

Shannon-Weiner信息统计指数、Pielou均匀度指数的变化趋势和S im pson优势度指数基本相似。植被总生物量由1.351 t/hm^2增加到9.745 t/hm^2

撂荒2a时植被系统开始产生枯落物。随着植被恢复时间增加

死地被物生物量从0.824 t/hm^2增加到1.403 t/hm^2。与采伐前相比

撂荒使采伐迹地土壤表层（0-15 cm）有机质含量和土壤各层的养分含量明显增加。撂荒具有较早归还凋落物和增加土壤养分的能力。

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Diversity Changes Study of Natural Restoring at Early Stage After Fallow on Vegetation in Clear-Cutting Forestland of Man-Made Sand-Fixation Forest of Pinus sylvestris var.mongolica

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