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苏北不同代次和林龄杨树人工林土壤酶活性季节变化特征(PDF)

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

Issue:
2014年04期
Page:
45-50
Column:
研究论文
publishdate:
2014-07-01

Article Info:/Info

Title:
Seasonal dynamics characteristics of soil enzyme activities of poplar plantation with different stand ages and rotations
Article ID:
1000-2006(2014)04-0045-06
Author(s):
WANG Genmei1 LUO Linlin1 ZHENG Jufeng2*
1.College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China;
2. College of Resources and Environmental Sciences, Nanjing Agricultural University, Nanjing 210095, China
Keywords:
poplar plantation stand ages and rotations soil enzyme seasonal dynamics
Classification number :
S714
DOI:
10.3969/j.issn.1000-2006.2014.04.009
Document Code:
A
Abstract:
Seasonal dynamics characteristics of soil enzyme activities of poplar plantation with different stand ages and rotations were investigated. The results showed that there exited the differences of enzyme activities of different experiment plots among spring, summer, autumn and winter. Seasonal dynamics of sucrase, urease, phosphatase and catalase were as follows: Sucrase activities of soil was higher in spring, summer and autumn than that in winter. While, urease activity of soil was higher in spring than that in summer, autumn and winter. Phosphatase activity of soil change was as autumn>summer>spring>winter. However, catalase activity of soil was no obvious difference in the four seasons. The results also showed that, in exception of catalase, the activities of sucrase, urease, phosphatase of all soil investigated at 0-15 cm were higher than those at 15-30 cm. There also exited difference of enzyme activities of soil in poplar plantation with different stand ages and rotations. The activities of soil phosphatase, urease and sucrase in the 10-year-old stands of the first-rotation poplar plantation were higher than those in the 10-year-old stands of the second-rotation poplar plantation in correspond with season. The activities of soil phosphatase, urease, sucrase and catalase in the 10-year-old stands of the first-rotation poplar plantation were all higher those in the 15-year-old stands of the first-rotation poplar plantation.

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Last Update: 2014-07-31