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作 者 ：陈爱国 崔景云 郭辉军

期 刊 ：云南植物研究 2000年 22卷 12期 页码：1-3

关键词：土地利用阶段；植物多样性；农业生物多样性评价；西双版纳；

Keywords:Land management pattern, Plant diversity, Agrobiodiversity assessment (ABA), Xishuangbanna,

摘 要 ：在大卡老寨11个不同土地利用阶段样方（l100m2）内共出现73科139属191种植物，而巴卡小寨9个不同土地利用阶段样方（900 m2）内共出现70科146属1的种植物。与热带雨林相比较，广布种（禾本科、蝶形花科）由10％分别上升为20％，而且排位由第9位分别上升到第3位和第3位，表明热带山地不同土地利用阶段造成植物区系成份中热带种和亚热带种优势减小。

Abstract:There are 73 families, 139 genera and 179 species distributed in 0.1 ha of different land Use Stages of Daka and 70 families 146 genera 166 species distributed in 0.08 ha different different land use stages of Baka, Xishuangbanna. The cosmopolitan families, such as Gramineae, Compositae and Papiloinaceae take about 20% in Daka and 30% in Baka that agricultural activities caused decrease of tropical families and subtropical families comparing with tropical rainforest. Species α - diversity and β - diver-sity of different land Use Stages of Daka and Baka was measured and studied using the methods of Gleason‘ species richness index, Shannon-Wiennner index, Pielous‘ evenness index, Whittaker index and Jaccard‘ coefficient index. The results of the diversity indices varied greatly that means different land Use Stages had different species composition and led to different vegetation succession.

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