BAI Hongmei,LI Gangtie,MA Junji,et al.Differentiation of Micro-landform Vegetation Characteristics in Hunshadake Sandy Land[J].Northern Horticulture,2015,39(17):53-57.[doi:10.11937/bfyy.201517014]
浑善达克沙地微地形植被特征分析
- Title:
- Differentiation of Micro-landform Vegetation Characteristics in Hunshadake Sandy Land
- 文献标志码:
- A
- 摘要:
- 基于浑善达克沙地不同坡向、不同坡位微地形类型，通过调查不同类型微地形植被特征，对比分析微地形对浑善达克沙地植被特性的影响。结果表明：浑善达克沙地不同微地形内植物群落物种组成、数量特征及其多样性差异显著；背风坡草本群落的优势种为羊草、狗尾草和灰莲蒿，迎风坡草本群落的优势种为虫实、洽草和雾冰藜；背风坡植被的盖度、平均高度和生物量多优于迎风坡；不同微地形Shannon指数的大小顺序为背风坡＞迎风坡，坡下＞坡中＞坡上。
- Abstract:
- It was based on different micro-landform types of slope gradient and slope aspect in Hunshadake Sandy Land，through investigating the vegetation characteristic of different micro-landform types，contrasting and analyzing the micro-landform’s influence to vegetation characteristic in Hunshadake Sandy Land.The results showed that there were significant differences of plant species composition，quantity and diversity characteristics in different micro-landform of Hunshadake Sandy Land；the dominant species of herbaceous community in leeward slope were Leymus chinensis Tzvel.，Setaria viridis Beauv.，Artemisia sacrorum Ledeb.var.incana，the dominant species of herbaceous community in windward slope were Corispermum hyssopifolium，Koeleria glauca，Bassia dasyphylla Kuntze.；the vegetation coverage，average height and biomass of leeward slope were almost more than windward slope；the order of different micro-landforms Shannon index was leeward slope＞windward slope，lower slope＞middle slope＞upper slope.
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备注/Memo
第一作者简介：白红梅（1988-），女，内蒙古兴安盟人，硕士，研究方向为沙区植物资源保护与利用。E-mail：15848909291@163.com.责任作者：李钢铁（1963-），男，博士，教授，博士生导师，现主要从事荒漠化防治等研究工作。基金项目：国家自然科学基金资助项目（31260202）。