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不同银杏复合经营模式土壤酶活性及综合评价(PDF)

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

Issue:
2010年04期
Page:
1-6
Column:
研究论文
publishdate:
2010-08-06

Article Info:/Info

Title:
The activities and integrated evaluation of soil enzymes of different agroforestry patterns of Ginkgo biloba L.
Author(s):
WANG Guibin1 CAO Fuliang1 CHENA Peng2 CHEN Lei1 DAI Biao1 LI Qun3
1.College of Forest Resources and Environment, Nanjing Forestry University, Nanjing 210037, China; 2.Forestry Department of Anhui Province, Hefei 230001, China; 3.Taixing Bureau of Forestry, Taixing 225400, China
Keywords:
Ginkgo biloba.L agroforestry activities of soil enzymes integrated evaluation
Classification number :
S718
DOI:
10.3969/j.jssn.1000-2006.2010.04.001
Document Code:
A
Abstract:
Ginkgo biloba L.is a traditional economic tree species in China, and it is a common plant cultivated in agroforestry system. In order to understand the effects of different agroforestry patterns of G.biloba L.on the activities of soil enzymes, three agroforestry patterns were studied, including G.biloba L.+Wheat+Soybean (G+W+S), G.biloba L.+Mulberry (G+M) and G.biloba L.+Rape+Soybean (G+R+S). The other two planting patterns Mulberry (M) and Rape+Soybean (R+S) were used as control. The activities of soil enzymes of the five managing patterns were determined after planting three years, and their integrated activity were evaluated by using the improved Analytic Hierarchy Process (AHP). The results showed that the activities of catalase, sucrase, urease, dehydrogenase, phosphatase, polyphenol oxidase and protease in soil of the five patterns were different remarkably, and these enzymes varied significantly in different soil layer. The activities of sucrase, urease, dehydrogenase, phosphatase and protease of soil of five patterns decreased with an increase in soil layer. However, the activity of catalase and polyphenol oxidase increased, and the activities of these enzymes were the lowest among five patterns except catalase of R+S pattern. The results of integrated evaluation of soil enzyme activity showed that the integrated evaluation indicators were different significantly for the activity of soil enzymes among the five agroforestry systems. They were ordered in G+M(0.870), G+W+S(0.820), G+R+S (0500), M (0.281), R+S (0.127). Therefore, ginkgo agroforestry could increase the activities of soil enzymes, and improve soil fertility.

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Last Update: 2010-08-06