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生物覆盖对银杏用材林土壤酶活性的影响(PDF)

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

Issue:
2015年02期
Page:
21-26
Column:
专题报道
publishdate:
2015-04-01

Article Info:/Info

Title:
Effects of biological mulching on soil enzyme activity of ginkgo(Ginkgo biloba L.)timber plantation
Article ID:
1000-2006(2015)02-0021-06
Author(s):
XU Hongqiang123 WANG Guibin12* CAO Fuliang12 ZENG Xiangdong12
1. Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China;
2. College of Forestry, Nanjing Forestry University, Nanjing 210037, China;
3. Forestry Bureau of Jiangsu Province, Nanjing 210036, China
Keywords:
biological mulching soil enzyme ginkgo timber plantation
Classification number :
S718
DOI:
10.3969/j.issn.1000-2006.2015.02.004
Document Code:
A
Abstract:
Biological mulching is an important soil management measurement for improving soil properties and crop yield, and it is widely used in forestry. In this paper, a randomized block design was used, the effect of mulching materials(wheat straw, rice straw and corn straw)and mulching amount(2, 4, 6 kg/m2)on enzyme activity of surface soil(0-10 cm)in ginkgo(Ginkgo biloba L.)timber plantation were studied. We found that urease, alkaline phosphatase, sucrase and catalase activities were increased in a different degree under three mulching materials, and the mulching effect of corn straw and rice straw were better. Mulching amount of corn straw had a significant effect on the activity of four soil enzymes, and the activities of four enzymes had an enhancing tendency with the increasing of mulching amount. The activity of urease, alkaline phosphatase and sucrase were identical with variation of temperature in a year, and they reached the highest activity in July. But catalase owned the highest activity in October, indicating that temperature has more effect on the activity of urease, alkaline phosphatase and sucrase than that of catalase. Overall, biological muching increased the activity of soil enzymes in ginkgo timber plantation, and improved soil fertility.

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Last Update: 2015-03-31