| 滇西北亚高山退化林地的土壤种子库 |
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| 引用本文： | 史鸿飞,张劲峰,李勇鹏,张帆,裴艳辉,马赛宇.滇西北亚高山退化林地的土壤种子库[J].东北林业大学学报,2011,39(4):67-70. |
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| 作者姓名： | 史鸿飞 张劲峰 李勇鹏 张帆 裴艳辉 马赛宇 |
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| 作者单位： | 云南省林业科学院; |
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| 基金项目： | 国家科技部“十五”科技攻关项目(2002BA901A42); 云南省“十五”科技攻关项目(2003NG14) |
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| 摘 要： | 对滇西北亚高山不同演替阶段退化林地的土壤种子库进行了初步研究.结果表明:演替早期样地种子丰度最大、物种多样性指数较低,并呈现随演替发展而增加的趋势;大约75%以上的种子都分布在0～5 cm厚土层;演替早期样地雨季前(次年4月)种子丰度最大,而在演替的中后期,雨季(7月)种子丰度要高于雨季后(11月)和雨季前;不同物种在...
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| 关 键 词： | 滇西北亚高山 土壤种子库 演替阶段 退化林地 |
Soil Seed Banks in Subalpine Degraded Forestlands in Northwest Yunnan |
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| Shi Hongfei,Zhang Jinfeng,Li Yongpeng,Zhang Fan,Pei Yanhui,Ma Saiyu.Soil Seed Banks in Subalpine Degraded Forestlands in Northwest Yunnan[J].Journal of Northeast Forestry University,2011,39(4):67-70. |
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| Authors: | Shi Hongfei Zhang Jinfeng Li Yongpeng Zhang Fan Pei Yanhui Ma Saiyu |
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| Institution: | Shi Hongfei,Zhang Jinfeng,Li Yongpeng,Zhang Fan,Pei Yanhui,Ma Saiyu(Yunnan Academy of Forestry,Kunming 650204,P.R.China) |
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| Abstract: | A survey was conducted to study soil seed banks in degraded forestlands at different successional stages in subalpine areas of northwest Yunnan.Results showed that the seed abundance in the sample plots at early succession stage was highest while the species diversity index was relatively low,which exhibited an increasing tendency with succession development.Over 75 percent of seeds were distributed in 0-5 cm soil layer.The seed abundance in the sample plots at early successional stage was highest before ra... |
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| Keywords: | Subalpine areas in northwest Yunnan Soil seed banks Successional stages Degraded forestlands |
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