| 摘要: |
| 【目的】明晰滑雪场建设对太白山国家森林公园植物多样性的影响程度，为植物多样性及植被的恢复提供依据。【方法】以公园滑雪场及两侧山坡的植被为研究对象，运用典型样地法，以滑雪场中心向两侧山坡延伸设置样地，共设7块样地（中心样地1块，边缘样地、过渡样地和对照样地各2块），样地面积为20 m×20 m，对各样地植物群落的物种组成、重要值、α多样性指数进行统计与分析。【结果】与对照样地相比，中心样地和边缘样地的总体物种数量较低，过渡样地较高；各干扰样地(包括中心样地和边缘样地)的乔木、灌木、草本中各物种的组成差异较大，有些物种在干扰样地或过渡样地中消失，但又有新的物种侵入，抗性强的物种的优势度随干扰程度降低有下降的趋势；干扰样地和过渡样地的总体物种多样性指数均下降，其中丰富度指数（R）差异显著（P<0.05），而多样性指数（D、H′、H、Dmc）和均匀度指数(J)差异不显著（P>0.05）；草本物种多样性的变化不明显，而灌木和乔木的变化明显。【结论】滑雪场建设对太白山国家森林公园植物多样性影响显著。 |
| 关键词: 滑雪场建设 森林公园 植物物种多样性 |
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| 基金项目:“十一五”国家科技支撑计划项目（2006BAD09B03-04） |
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| Impacts of ski-resort construction on plant diversity in Taibai Mountain Forest Park |
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| Abstract: |
| 【Objective】This studied investigated the impacts of ski resorts construction on plant diversity in Taibai Mountain Forest Park to improve the restoration of vegetation and plant diversity.【Method】This study employed the method of special plots,taking the vegetations of the two directions with seven plots（1 plot in the center,and 2 plots in the edge,the transition and the control respectively）of 20 m×20 m in area in the ski resort and on the both sides of the slope as the study objects,to carry out comparative research on the plant groups and analysis on the species composition of every plant community,the degree of superiority and α diversity index.【Result】Compared with the control plots,the number of overall species in center plots and edge plots were lower,in the transition plots were higher.The composition of each species in the disturbed plots was largely different.Some species disappeared in disturbed plots or transition samples,while some new species invaded.The dominance of species with high resistance had a trend of declining as the decrease of interference.The evenness index (J) showed a slightly upward trend,species richness index (R) of the eastern plots increased,but other indexes decreased after initial increase.The diversity index of total species in disturbed plots and transitional plots were declining.The richness index (R) was significantly different (P<0.05),while other indices （D,H′,J,H,and Dmc） were not (P>0.05).The species diversity of herbaceous did not change significantly,but that of shrubs and trees changed more significantly.【Conclusion】This research showed that the construction work of ski-resort had significant impacts on plant diversity in Taibai Mountain Forest Park. |
| Key words: ski-resort construction forest park plant diversity |
