| 浑善达克沙地植被恢复特征研究 |
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| 引用本文： | 王树力,范宁宁.浑善达克沙地植被恢复特征研究[J].安徽农业科学,2014(2):546-548. |
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| 作者姓名： | 王树力 范宁宁 |
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| 作者单位： | 东北林业大学林学院,黑龙江哈尔滨150040 |
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| 基金项目： | 林业科技成果国家级推广项目（2010[30]）资助. |
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| 摘 要： | 采用野外调查与室内分析相结合的方法,以内蒙古自治区克什克腾旗浑善达克沙地不同治理时间及不同演替阶段沙地为对象,从物种科属组成、生活型组成、Shannon-Wiener多样性指数、Simpson优势度指数、Pielou均匀度指数和生物量等方面入手,定量分析了沙地不同治理时期及不同演替阶段植被的恢复特征。结果表明,随着治理年限的不断增加,沙地植物群落自然侵入的植物种数逐渐增加,由2010年治理时的2种,增加到1995年治理的9种。沙地植物物种多样性不断增大,物种均匀度则呈下降趋势。沙地群落地上生物量和地下生物量均随治理年限增加而增加,且增幅较大。从流动沙地到固定沙地,自然侵入沙地的植物种从2种增加到15种,群落的物种丰富度逐步增高,物种多样性增幅较大。物种均匀度指数呈现出先降低后增长的趋势。地上生物量和地下生物量也均呈现增加趋势。研究结果可为浑善达克沙地的生态治理提供理论依据。
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| 关 键 词： | 浑善达克沙地 植被恢复 物种组成 生物量 植物多样性 |
Study on the Vegetation Restoration Characteristics of Htmshandake Sand |
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| Institution: | WANG Shu-li et al (Forestry School of Northeast Forestry University, Harbin, Heilongjiang 150040) |
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| Abstract: | Vegetation restoration characteristics of the different governance time and different succession stage of Hunshandake sand were stud- ied by using of species composition, life type composition, Shannon Wiener diversity index, Simpson diversity index, Pielou evenness index and biomass index through the method of field investigation and indoor analysis. It was shown that ： （ 1 ） Natural invading plant species number in- creased gradually with governance time, from 2 species of sand governance in 2010 to 9 species of sand governance in 1995, Plant species diversi- ty, biomass aboveground and biomass underground of sand community increased, and plant species evenness decreased with governance time. （2） From flow sand to fixed sand, natural invading plant species number increased with governance time, from 2 species to 15 species, and spe- cies diversity increase with great step. Biomass aboveground and biomass underground also tend to increase. But species evenness decreased from flow sand to semi-fixed sand, and increased from semi-fixed sand to fixed sand. The research results would provide a theoretical basis for the eco- logical treatment of Hunshandake sand. |
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| Keywords: | Hunshandake sand Vegetation restoration Species composition Biomass Plant diversity |
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