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Issue 3
May  2010
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Article Contents
QI Yu-feng, YANG Xu-feng, ZHANG Qi-ping, SONG Kun, KANG Min-ming, DA Liang-jun. Experimental ecology research on destroyed evergreen broad leaved forests in TNFP, Zhejiang (V): Five year recovery and regeneration of main trees after different disturbances[J]. Journal of East China Normal University (Natural Sciences), 2010, (3): 10-25.
Citation: QI Yu-feng, YANG Xu-feng, ZHANG Qi-ping, SONG Kun, KANG Min-ming, DA Liang-jun. Experimental ecology research on destroyed evergreen broad leaved forests in TNFP, Zhejiang (V): Five year recovery and regeneration of main trees after different disturbances[J]. Journal of East China Normal University (Natural Sciences), 2010, (3): 10-25.

Experimental ecology research on destroyed evergreen broad leaved forests in TNFP, Zhejiang (V): Five year recovery and regeneration of main trees after different disturbances

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  • Corresponding author: DA Liang-jun
  • Received Date: 2009-06-26
  • Rev Recd Date: 2009-09-13
  • Publish Date: 2010-05-25
  • Investigations were carried out for 5 years from October, 2003 to October, 2008 in a logged evergreen broad leaved forest at Tiantong, Zhejiang province. Five following treatments were used in five sites: (Ⅰ) Big trees with height8 m and DBH5 cm were removed but sprouts retained; (Ⅱ) ground surface vegetation was removed but litter retained; (Ⅲ) all vegetation and 0 10 cm topsoil were removed. (Ⅳ) undergrowth was removed but big trees retained; and (Ⅴ) a control plot without any disturbance. Our results showed that: (1) The highest BAs (basal area value) were found in plot Ⅰ and plot Ⅱ, with a value of 1 631.8 cm2 and 1 619.4 cm2 respectively, and the lowest in plot Ⅳ with a value of 43.4 cm2. (2) The increase of BA in plot Ⅰ was mainly from the growth of retained evergreen broad leaved trees; plot Ⅱ had the highest BA increase which was mainly from deciduous broad leaved shrubs or small trees and deciduous broad leaved trees, and plot Ⅲ mainly from deciduous broad leaved shrubs or small trees and evergreen broad leaved trees; plot Ⅳ had few trees with low BAs. (3) Seedling and sapling recruitment fluctuated in all plots in 5 years. In plot Ⅰ and plot Ⅱ, seedlings and saplings were mainly evergreen broad leaved trees, but plot Ⅱ had more deciduous trees; seedlings and saplings in plot Ⅲ were mainly deciduous trees while in plot Ⅳ mainly evergreen broad leaved trees. Our results indicate that logging impact the recovery and regeneration of the evergreen broad leaved forest trees. Under logging big trees, evergreen broad leaved trees recover quickly; under clearing undergrowth, main trees recover slowly; under two kinds of clear cuttings, deciduous trees invade and dominate the plots or are mixed with evergreen broad leaved trees.
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