JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2011, Vol. 35 ›› Issue (02): 103-107.doi: 10.3969/j.jssn.1000-2006.2011.02.022

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Variation of soil enzyme activities under different vegetation restoration stages in Karst gorge district

CUI Xiaoxiao1, WANG Jijie1, LUO Huining2,YU Yuanchun1*,LIANG Guanfeng1, ZHOU Chuifan1,WANG Zhen1, ZHANG Jinchi1   

  1. 1.College of Forest Resources and Environment,Nanjing Forestry University,Nanjing 210037,China; 2.International Forestry Project Cooperation Centre of Guizhou Province,Guiyang 550001,China
  • Online:2011-04-13 Published:2011-04-13

Abstract: Changes of soil enzyme activities and their relationships under different vegetation restoration stages, including abandoned farmland,herbaceous community,shrubby community,arboreal community stage, in Karst gorge district of Guizhou province were studied.The results showed that soil urease, invertase, alkaline phosphatase and catalase enzyme activities increased obviously from herbaceous stage to shrubbery stage, while urease, alkaline phosphatase and catalase enzyme activities increased slightly, invertase decreased slightly but no significant difference from shrubbery stage to arboreal stage.Compared to 0—10 cm, soil enzyme activities in 10—20 cm decreased significantly.Soil enzyme activities showed stronger correlations each other. Soil urease, alkaline phosphatase and catalase enzyme activities showed stronger positive correlations with soil organic matter, total nitrogen, hydrolytic nitrogen, total phosphorus, available phosphorus and available potassium. It was indicated that at the early stage of vegetation restoration,vegetation types affect soil enzyme activities significantly, when vegetation restore to some extent, this effects become not significantly.

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