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典型喀斯特地区3种人工林对土壤理化和 微生物特性的影响(PDF)

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

Issue:
2015年05期
Page:
67-72
Column:
研究论文
publishdate:
2015-10-20

Article Info:/Info

Title:
Effects of three different plantations on soil physicochemical and microbial characteristics in Krast region
Article ID:
1000-2006(2015)05-0067-06
Author(s):
WU Ping123XUE Jianhui12*
1. Co-Innovation Center for the Sustainable Forestry in Southern China, Nanjing Forestry University, Nanjing 210037, China;
2.Jiangsu Key Laboratory of Forestry Ecological Engineering,College of Biological and the Environment,Nanjing Forestry University,Nanjing 210037, China;
3. Nantong Science and Technology College,Nantong 226007,China
Keywords:
Karst region plantation microbial biomass soil physicochemical characteristics
Classification number :
S714
DOI:
10.3969/j.issn.1000-2006.2015.05.011
Document Code:
A
Abstract:
To study the effects of the different plantations on the soil microbial biomass carbon, nitrogen, phosphorus and physicochemical characteristics, three plantations [Robinia pseudoacacia plantation(RP), Cupressus duclouxiana plantation(CD),R. pseudoacacia-C. duclouxiana mixed plantation(RC)] and a non-plantation area(CK)at the Karst regions were chosen as the research objects. The results showed that: Except the content of Total P,the contents of SOC, Total N, available N, available P and water of RC were higher than those of RP and CD. No differences were found among the soil pH of the three plantations. The soil bulk density was followed the order of CD, CK, RP, RC. The highest content of soil microbial biomass carbon was found in RC(267.33 mg/kg),followed by CD(163.34 mg/kg), the non-plantation area(125.62 mg/kg)and RP(97.24 mg/kg). The highest content of soil microbial biomass nitrogen was RC(38.45 mg/kg),followed by RP(27.70 mg/kg), CK(18.51 mg/kg)and CD(14.81 mg/kg). The highest content of soil microbial biomass phosphorus was still detected in RC,followed by CD, RP and CK.All of the results illustrated that RC could remarkably improve the soil nutrient and increase the microbial biomass carbon,nitrogen and phosphorus in the Karst regions.

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Last Update: 2015-10-15