Undergrowth Plant Diversity of Different Mixed Combinations in Water-Conserved Plantations of Dongjiang
In order to reveal the difference and regularity of plant diversity under 8 different mixed combi-nations of 5-year-old water-conserved plantation in Dongjiang,the plant diversity survey was conducted,and the shrub,vine,and herb layers were evaluated for plant diversity.The results showed that the rich-ness indexes of the species were not very favorable,values of the Simpson's Index were equal to the inter-specific encounter probability(PIE)but differed dramatically from Shannon-Wiener index.The cluster analysis of undergrowth plant diversity indicators showed that Phoebe nanma×Cyclobalanopsis chinensis,Rhodoleia championii×Liquidambar formosana,Michelia macclurei×Castanopsis hystrix,Lithocarpus thalassica×Castanopsis hystrix,Erythrophloeum fordii×Ormosia pinnata were the ideal types with higher diversity,but the Castanopsis hystrix×Liquidambar formosana was the lowest one.
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万方数据
