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Effects of Eulaliopsis binata introduction on the vegetation recovery of purplish soil habitat |
Xu Huan1, He Feifei2, Wan Shuming3, Zou Dongsheng4, Guan Wenbin1 |
1. College of Nature Conservation, Beijing Forestry University, 100083, Beijing, China; 2. School of Agricultural Research, Yunnan University, 650201,Kunming, China; 3. Key Laboratory for Agro-ecological Processes in Subtropical Region, Institute of Subtropical Agriculture, Chinese Academy of Sciences, 410125, Changsha, China; 4. Orient Science & Technology College of Hunan Agricultural University, 410128, Changsha, China |
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Abstract Vegetation restoration on purplish soil is one of the vegetation recovery challenges in China. In order to test the effects of Eulaliopsis binata vegetation on the improvement of purplish soil habitat, species diversity of the community that was planted with E. binata in correlation with the change of soil environmental factors was studied for the purpose of finding the most suitable recovery mode. A field survey was conducted in communities with different recovery modes (artificial restorations I, Ⅱand natural restoration Ⅲ) in mid July 2010 in Songlin, Hunan Province. All the collected data were analyzed utilizing TWINSPAN and RDA. The results show that 1) the species diversity are mainly influenced by the amount of total nitrogen, organic matter in soil, slope position and recovery mode and 2) the Gleason richness indices of upper slope and lower slope in artificial restoration Ⅱwere 2.171 and 5.863, respectively, followed by artificial restoration I and natural restoration Ⅲ. And the soil total nitrogen and organic matter in artificial restoration Ⅱincreased significantly. Therefore, the artificial restoration Ⅱtends to be more effective when using E. binata for vegetation recovery.
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Received: 16 June 2013
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