【摘要】 选取广州市信园为研究个案 ,同时先取市内有代表性的 5个生态园林区作对比进行植物多样性调查 ,计算物种多样性指数 (SW指数 )。并把计算结果分别与园区内其它生物多样性的调查结果和环境指标 (温度、湿度、土壤含水量、有机质质量分数、含氮量 )的检测结果进行分析。结果表明 :①有机质质量百分比随植物SW指数上升呈增高趋势 ,良好的土壤环境又会促进植物多样性发展 ;②鸟类、其他小型动物的种类数随植物SW指数上升呈现增高趋势 ,即植物多样性决定动物物种丰富程度。建议广州市园区的SW指数不应低于 2 5。更多还原

【Abstract】 We picked garden areas in Zhixin Middle School as our research case and five other representative garden areas in parks in our city for contrast study. We investigated the plant diversity in each area, and calculated the index of its diversity(Shannon_Wiener index); observed the diversity of birds, insects, soil animals and other species; and measured various indexes such as temperature, humidity, water containing of soil, organic matter, nitrogen containing, pH index. As a result of our qualitative and quantitative study it shows that: ① The containing of organic matter is going up with a rise in the index of plant diversity. Because of the effect of plant diversity, the optimize of soil condition can be improved, a good soil condition will accelerate the development of plant diversity. ② The number of species of birds and other small animals has a going_up direction with the rise in the index of plant diversity, which means plant diversity determines how many animal species there are.All the curves that represent the relationships above have major turnings at the point of SW index 2 5.In the construction of garden area in Guangzhou, its index of plant diversity(SW Index)should not be lower than 2 5.更多还原