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FOREST RESOURCES WANAGEMENT ›› 2010, Vol. 0 ›› Issue (3): 24-30.

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Effects of Hillside Closing on Vegetation Restoration in Limestone Mountains

LU Lihua1, JIA Hongyan1, FENG Changlin1, HE Riming1, HUANG Wenlong2, XIAN Shaoda2, SHI Zuomin3   

  1. 1. Tropical Forestry Experimental Center of Chinese Academy of Forestry, Pingxiang 532600, Guangxi, China;
    2. Forestry Bureau of Tianyang County, Guangxi, Tianyang 533600, Guangxi, China;
    3. Institute of Forest Ecology, Environment and Protection, Chinese Academy of Forestry, Key Lab on Forest Ecology and Environment of State Forestry Administration, Beijing 100091, China
  • Received:2010-03-24 Revised:2010-03-31 Published:2020-12-14

Abstract: Effects of hillside closing on vegetation restoration in different sites in limestone mountains were studied in Tianyang county, Guangxi Autonomous Region. The results showed that the effects of hillside closing on vegetation restoration were obvious in different sites after 3 years. There were 13 new plant species occurring in experimental site A and the increase ratio was 50.09%. The importance value of majority species decreased and minority species increased though their significance had not changed obviously in community. Total vegetation coverage increased 40% obviously. There were only 4 new plant species occurring in experimental B which was better site and the increase ratio was only 19.05%. Although importance value of most woody and liana species decreased, their significance had not changed obviously in community. But importance value of most herb species increased and significance of part of them had changed radically in community. The first most dominant species Eupatorium odoratum Linn. changed to the second most dominant while Microstegium vagans (Nees) A.Camus changed to be the first most important from the second most important species. The vegetation coverage was 100%.

Key words: hillside closing, limestone mountains, vegetation restoration

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