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| Community characteristic of plantation of Leucaena leucocephala in the area with high-frequency debris flow |
| Lin Yongming1,Cui Peng2,Wang Daojie2,Ge Yonggang2,Ke Chunyan1 |
| 1.College of Forestry,Fujian Agriculture and Forestry University,350002,Fuzhou;2.Institute of Mountain Hazards and Environment,Chinese Academy of Sciences & Ministry of Water Conservancy,610041,Chengdu: China |
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Abstract Based on the phytocoenological method,the characteristics of Leucaena leucocephala community in the area with debris flow occurring frequently in hot and dry valley of Jinsha River Basin was researched.The results showed that there are few plants species in the Leucaena leucocephala community.Its family and genus are scattered composition.The geographical element is simple,with a relatively higher connection to the tropical element on family level by 41.91% and on genus level by 45.16%.It was characterized by hemicryptophytes with mesophylls and microphylls,simple,coriaceous,papery,unentire leaves.Although the vertical structure of community can be divided into tree layer,shrub layer and low coverage herb layer,Leucaena leucocephala dominated in tree layer and shrub layer.The Leucaena leucocephala community was unstable,we must adjust the structure of the community to progressive succession.
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Received: 23 June 2009
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