Physical and chemical soil variables affecting Pinus taeda L. fine roots distribution in northeast of Rio Grande do Sul, Brazil

Vicente Guilherme Lopes, Mauro Valdir Schumacher, Ivanor Müller, Francine Neves Calil, Rudi Witschoreck, Edenilson Liberalesso

Abstract


This study had as objective to correlate length and fine roots biomass regarding soil chemical and physical attributes in a 15 year Pinus taeda L. stand. Soil and root samples were obtained in Cambará do Sul (RS) county, through three monoliths (25 cm x 25 cm x 40 cm) excavation. Chemical and physical samples, as well as, root sample processing were conducted at Forest Ecology Laboratory, Universidade Federal de Santa Maria. Measured edaphic variables were used on Principal Component Analysis as explanatory variables upon roots biomass and length behavior in different soil depths. Soil chemical variables showed higher correlation with roots lenght and biomass, standing out P>K>V>Mg>Ca as main variables. This higher soil chemical variables correlation is more evidenced in the layer until 10 cm of soil.

Keywords


Forest soils; Multivariate analysis; Root system; Forest nutrition

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Ecologia e Nutrição Florestal/Ecology and Forest Nutrition by www.ufsm.br/enflo is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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INDEXING SOURCES:

AGRIS/CARIS, AGROBASE/BINAGRI, LATINDEX, REDE CARINIANA, DOAJ, EZB, PERIÓDICOS CAPES, TIB, CAB ABSTRACT, DIADORIM.

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General DOI: 10.5902 / 2316980X (the specifics are in the ABSTRACTS - click on the article title, in summary)

"The papers published in the journal Ecology and Forest Nutrition / Ecology and Forest Nutrition are the responsibility of the authors and do not necessarily represent the opinion of the editors. The article reproduction is allowed, however citation the source ".