A comparative study on life-form spectra of evergreen broad-leaved forest in different successions in Jinyun Mountain

Abstract

Abstract: The life form of plant communities in different succession stages in Jinyun Mountain was studied and the life form spectrum was established. The results showed that according to the characters of life form of plant communities,the vegetation in Jinyun Mountain belonged to typical subtropical evergreen broad leaved forest vegetation. Evergreen phaenerophytes were absolutely dominant in the life form spectrum and its quantity accounted for more than80%. Among phaenerophyte,quantity of microphanerophyte was the most,and quantities of mesophanerophtye and nanophanerophyte were less. Different successions had different life form spectra. With the development of succession,the percentage of phaenerophytes increased,and other life forms decreased correspon dingly. According to the development of life form and comparative analysis of environmental factors in different succession stages,coniferous species would be replaced by evergreen phaenerophytes.

Key words: Jinyun Mountain, Evergreen broad leaved forest, Succession stages, Life form spectrum, Comparative analysis, nitrogen use efficiency, grain yield, reduced nitrogen rate, wheat, postponed basal fertilizer

CLC Number:

S718.54

LEI Ningfei, SU Zhixian, SONG Huixing, ZHANG Yan . A comparative study on life-form spectra of evergreen broad-leaved forest in different successions in Jinyun Mountain[J]. Chinese Journal of Applied Ecology, 2002, (3): 267-270.

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