Journal of East China Normal University(Natural Sc ›› 2010, Vol. 2010 ›› Issue (3): 1-9.

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Experimental ecology research on destroyed evergreen broad leaved forests in TNFP, Zhejiang (Ⅳ): Contribution of seed bank to early restoration of destroyed evergreen broad leaved forests

SONG Yaobin1, ZHANG Qiping1, DA Liangjun1,3   

  1. 1. Department of Environment Science, East China Normal University, Shanghai 200062, China;2. Tiantong Forest Ecosystem National Research Station, Ningbo Zhejiang 315114, China;3. Shanghai Key Laboratory for Ecology of Urbanization Process andEcorestoration, East China Normal University, Shanghai 200062, China
  • Received:2009-01-21 Revised:2009-04-19 Online:2010-05-25 Published:2010-05-25
  • Contact: DA Liang jun

Abstract: Four destroyed evergreen broadleaved forest plots were established by simulating the common disturbance types (removing trees, H>8 m; removing trees, H<8 m; removing all above ground plant; removing all aboveground plant and 010 cm depth surface soil) in Tiantong National Forest Park, in October, 2003. For understanding the contribution of seed bank to the restoration of destroyed evergreen broad leaved forests, the seed germination pattern, species composition, and the similarity between seed bank and the seedlings composition of first year restoration have been studied in this paper. The results showed that there were 995 seeds in seed bank and the seed abundance was 248.75 m-2, which belonged to 28 species, 27 genera and 21 families. The role of seed bank to 4 plots were Ⅰ (0.467) >Ⅳ (0.389) >Ⅱ (0.368) >Ⅲ (0). The pioneer species Sassafras tzumu , Alniphyllum fortunei , Clerodendrum cyrtophyllum , Litsea cubeba germinated and recruited abundantly from seed bank while the climax species Castanopsis carlesii and Lithocarpus glaber had little role to vegetation restoration. The species Choerospondias axillaries and Cinnamomum camphora mainly regenerated from exotic seed source. Conclusively, the soil seed bank exerted little role to the restoration of the evergreen broadleaved forests in this area.

Key words: destroyed plot, germination pattern, similarity, ecological restoration, destroyed plot, germination pattern, similarity

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