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云南菜阳河自然保护区人工直杆蓝桉林物种多样性分析

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摘要 利用云南普洱菜阳河自然保护区人工栽植17年的直杆蓝桉林调查数据,分析了其物种多样性大小。结果显示:在0.27 hm2的样地中共调查到物种105种,分属44科84属,其中乔木58种,灌木30种,藤本16种,附生植物1种。在3块调查样地中,乔木物种丰富度均较高,平均值达到了34,灌木物种丰富度平均值也达到了18.3,而藤本物种丰富度则为11.3。在Shannon-Wiener多样性指数上,乔木平均值为2.03,灌木平均值为2.02,藤本平均值为1.43,总体的平均值为2.80。在Simpson多样性指数上,乔木平均值为4.61,而灌木平均值为4.85,藤本平均值为2.91,总体平均值为9.17。以上的研究结果显示,该区域直杆蓝桉林中物种多样性较高,这可能与其附近种源丰富有关。
出处 《林业建设》 2012年第1期20-23,共4页 Forestry Construction
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