| 黄土丘陵区小流域植物群落物种多样性空间分布特征 |
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| 引用本文： | 刘江华,徐学选. 黄土丘陵区小流域植物群落物种多样性空间分布特征[J]. 陕西林业科技, 2009, 0(1) |
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| 作者姓名： | 刘江华 徐学选 |
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| 作者单位： | 1. 西南林学院,云南,昆明,650224
2. 中国科学院教育部水土保持与生态环境研究中心,陕西,杨陵,712100 |
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| 基金项目： | 国家自然科学基金重点项目，国家自然科学基金 |
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| 摘 要： | 研究黄土丘陵区植物群落物种多样性对评价本区域生态环境质量,探求恢复生态系统环境功能的途径有重要的理论价值。通过对康家圪崂沟小流域17个典型样地物种多样性的测定,得出如下结论:植物群落物种多样性在小流域空间的分布表现为:坡下>坡中>坡上;不同坡向的植物群落多样性指数差异更明显,Simpson指数阳坡>半阳坡>阴坡,Shannon-Wiener指数和Pilow均匀度指数与Simpson指数相反;多样性指数在坡度上的差异很小,没有明显的变化趋势;黄土丘陵区植物群落的多样性与受人为干扰程度密切相关。加强该地区的环境保护,减少人为干扰,能有效地保护生物多样性。
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| 关 键 词： | 黄土丘陵区 植物群落 物种多样性 |
Study on Species Biodiversity of Plant Community in Small Watershed on Loess Hilly Region |
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| LIU Jiang-hua,XU Xue-xuan. Study on Species Biodiversity of Plant Community in Small Watershed on Loess Hilly Region[J]. Shaanxi Forest Science and Technology, 2009, 0(1) |
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| Authors: | LIU Jiang-hua XU Xue-xuan |
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| Affiliation: | LIU Jiang-hua1; XU Xue-xuan2(1.Southwest Forestry College; Kunming; Yunnan 650224; 2.Institute of Soil and Water Conservation; Chinese Academy of Science &.Ministry of Education; Yangling; Shaanxi 712100); |
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| Abstract: | Study on biodiversity on loess hilly region is important for evaluating environment quality in this area and finding ways to restore ecosystem function.By sampling and measuring 17 typical plots in Kanggelao watershed,the spatial distribution of community biodiversity is showed as : down slope >middle slope >up slope.Biodiversity indexes of different exposures were significantly different,with Simpson indexes like sunny slope >hemi-sunny slope >shade slope,but the trend of Shannon-Wiener indexex... |
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| Keywords: | Loess hilly region plant community species biodiversity |
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