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半干旱区土壤酶活性与其理化及微生物的关系(PDF)

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

Issue:
2007年02期
Page:
13-18
Column:
研究论文
publishdate:
2007-02-20

Article Info:/Info

Title:
The Relationships Between Soil Enzyme Activity and Soil Physical-chemical Properties or Microbial Biomass in Semi-Arid Area
Article ID:
1000-2006(2007)02-0013-06
Author(s):
DING Han12 HU Hai-bo1* WANG Ren-chao3
1. College of Forest Resources and Environment Nanjing Fnrestry University, Nanjing 210037, China; 2. I.and Surveying and Planning Institute of Zhejiang Province, Hangzhou 310007, China; 3. Institute of Agricultural Remote Sensing and Information System Application Zheiiang University, Hangzhou 310029, China
Keywords:
Semi-arid area Soil enzyme activity Physical and chemical properties Microbial hiomass
Classification number :
S718
DOI:
10.3969/j.jssn.1000-2006.2007.02.004
Document Code:
A
Abstract:
Soil enzyme activities and the relationships with soil physical, chemical properties and microbial biomass of eight, typical plots in representative semi-arid areas, were discussed. The results shown that soil enzyme activities were not so high in this region {or shortage o{ moisture and high soil salt content. The trends of soil enzyme activities in the same profile were very similar. Correlation analyses also shown the soil enzymes were affected by respectively soil physical, chemical and biological properties. Especially the organic matter content and microbial biomass have a very closed relationship with many enzymes. The regression equations between soil enzyme activities and chemical properties were obtained by using a stepwise regression method. The principal component analysis reflects that the microbial biomass and the neutral phosphatase have higher coefficient in every major constituents, so these two properties can be considered to be the most important soil biological factors. Finally, the cluster analysis by soil enzyme activities and microbial biomass were conducted. The eight plots can be sorted to different degrees.

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Last Update: 2013-05-20