| 退耕还林后群落演替及其α多样性分析 |
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| 引用本文： | 冯迪,孙保平,郭建英,李蕊来. 退耕还林后群落演替及其α多样性分析[J]. 安徽农业科学, 2009, 37(31): 15320-15322 |
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| 作者姓名： | 冯迪 孙保平 郭建英 李蕊来 |
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| 作者单位： | 1. 北京林业大学水土保持学院,北京,100083
2. 中国人民大学,北京,100872 |
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| 基金项目： | 国家林业局中国北方退耕还林生态工程 |
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| 摘 要： | 研究了陕西省安塞县退耕还林后7种植被类型下的植被恢复情况、物种多样性特征以及相应生物量。结果表明，退耕还林工程促进了植被的正向演替；柠条是速生树种，赖草为原初植被的建群种；天然草地是由赖草、狗娃花、铁杆蒿共同组成建群种。灌木树种好于乔木树种，其中沙棘表现最好，多样性指数最大，而山杏多样性较差。在草本层及枯落物层中，柠条表现最为优秀，更有利形成乔木-草本-枯落物复合体。增强截留能力。
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| 关 键 词： | 退耕还林 群落演替 物种多样性 生物量 |
Research Community Succession and Species Diversity after Conversion from Cropland into Forest |
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| FENG Di et al. Research Community Succession and Species Diversity after Conversion from Cropland into Forest[J]. Journal of Anhui Agricultural Sciences, 2009, 37(31): 15320-15322 |
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| Authors: | FENG Di et al |
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| Affiliation: | FENG Di et al(College of Soil , Water Conservation,Beijing Forestry University,Beijing 100083) |
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| Abstract: | The status of the vegetation restoration,species diversity characteristics,and biomass of seven typical vegetations at the Ansai County of Shaanxi Province in China were studied.The results showed that conversion from cropland into forest projects promote positive vegetation succession;Korshinsk peashrub was a fast-growing tree species and Leymus secalinu was the original species of vegetaion.Natural grassland was not a priority species for a single species,but by the Leymus secalinu,Heteropappus altaicus a... |
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| Keywords: | Conversion from cropland into forest Community succession Species diversity Biomass |
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