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| Niche characteristics of plant population under natural restoration on shachang mining area in Beijing Shouyun Iron Ore |
| Zhao Fangying1,2,Li Jiangfeng1,2,Cheng Xiaoqin2 |
| 1.Beijing Forestry University;2.Beijing Linfengyuan Ecological Environment Planning and Designing Institute Co.,Ltd.: 100083,Beijing,China |
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Abstract Based on the investigation of vegetation under 3 natural restoration periods on Shachang mining area in Beijing Shouyun Iron Ore,the niche breadth and the niche overlap were researched for analyzing the niche discipline of plant populations under natural restoration.The results show that the species of big niche breadth during 5 to 15 years restoration include Artemisia sphaerocephala,Ulmus pumila.The species of big niche breadth during 16 to 25 years restoration include Ulmus pumila,Artemisia scoparia,Ailanthus altissima,Vitex negundo.The specie of big niche breadth during 26 to 35 years restoration includes Vitex negundo.The niche overlap between the plant populations increases with time going on.
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Received: 18 February 2009
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