Physical attributes of distroferric red latosol under four eucalypt species over the long term

Ciência e Agrotecnologia

Rafael Malfitano Braga²  Moacir De Souza Dias Junior¹  Francisco De Assis Braga¹  Thiago De Paula Protásio¹ 

[1] ,Universidade Federal de Lavras Departamento de Ciências Florestais Lavras MG ,Brasil

关键词: Soil porosity;    soil structure;    water retention in soil;    Porosidade do solo;    estrutura do solo;    retenção de água no solo;   

DOI  :  10.1590/S1413-70542013000400004

来源: SciELO

【 摘 要 】

Planted forests have been increasingly highlighted in the Brazilian scenario, maintaining status regarding their environmental effects, among them those related with soils. The objectives of this work were to evaluate and to compare the physical attributes of a typic distroferric Red Latosol under Eucalyptus cloeziana, E. grandis, E. Pilularis and Corymbia maculata coverage, 37 years after being planted at the Federal University of Lavras campus. The soil profiles were sampled down to 1 m depth in order to analyze their particle-size distribution, porosity, structure and water retention. The results were submitted to analysis of variance, Scott-Knott multiple means comparison test, correlations and linear regression. The profiles presented appropriated soil physical conditions to provide good plant development. The bulk density and microporosity increased in depth while the total pore volume, macroporosity and aggregates stability decreased in depth. The soil profiles under E. cloeziana and C. maculata coverage presented lower density, more pores, are more structured, present lower water retention capability and lower water availability than the soil profiles under E. grandis and E. pilularis.

【 授权许可】

CC BY   
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