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喀斯特峡谷区植被恢复过程中土壤酶活性的变化(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
2011年02期
Page:
103-107
Column:
喀斯特地区生态恢复研究专栏
publishdate:
2011-03-28

Article Info:/Info

Title:
Variation of soil enzyme activities under different vegetation restoration stages in Karst gorge district
Author(s):
CUI Xiaoxiao1 WANG Jijie1 LUO Huining2YU Yuanchun1*LIANG Guanfeng1 ZHOU Chuifan1WANG Zhen1 ZHANG Jinchi1
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
Keywords:
Karst gorge district vegetation restoration stages soil enzyme activities
Classification number :
S718.5;S714
DOI:
10.3969/j.jssn.1000-2006.2011.02.022
Document Code:
A
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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Last Update: 2011-04-13