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大通浅山退耕还林后生物多样性研究
Study on Biodiversity after Converting the Land of Forestry and Pasture in Middle Hills of Datong
【摘要】 对大通县退耕还林浅山区不同配置模式群落物种多样性进行研究。结果表明:不同配置模式的群落物种多样性指标的变化规律不尽相同,群落物种多样性指数排序为模式C>模式D>模式B>模式A>模式E,不同配置模式群落乔、灌、草三层结构物种多样性指数呈现出草本层>灌木层>乔木层的规律。
【Abstract】 Biodiversity were studied in different figuration model after converting the land for forestry and pasture in middle hills region of Datong County Qinghai province.The results showed that mutative rule on diversity index of different figuration model were not same,the order of biodiversity index was figuration C>D>B>A>E,and the biodiversity index of arbor,pour and grass three layers took on grass layer>pour layer>arbor layer.
【关键词】 退耕还林；
浅山区；
配置模式；
生物多样性；
【Key words】 Converting the land for forestry and pasture； Middle hills； Figuration model； Biodiversity；
【Key words】 Converting the land for forestry and pasture； Middle hills； Figuration model； Biodiversity；
- 【文献出处】 青海农林科技 ,Science and Technology of Qinghai Agriculture and Forestry , 编辑部邮箱 ,2006年03期
- 【分类号】S718.5
- 【被引频次】2
- 【下载频次】73