Nutrient supply modulates species interactions belowground: dynamics and traits of fine roots in mixed plantations of Eucalyptus and Acacia mangium

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Autor(es): dc.contributorUniversidade de São Paulo (USP)-
Autor(es): dc.contributorUMR Silva-
Autor(es): dc.contributorUniversidade Estadual Paulista (Unesp)-
Autor(es): dc.contributorUniv Montpellier-
Autor(es): dc.contributorUMR Eco&Sols-
Autor(es): dc.contributorAlto Universitário-
Autor(es): dc.creatorBordron, B.-
Autor(es): dc.creatorGermon, A. [UNESP]-
Autor(es): dc.creatorLaclau, J. P. [UNESP]-
Autor(es): dc.creatorOliveira, I. R.-
Autor(es): dc.creatorRobin, A.-
Autor(es): dc.creatorJourdan, C.-
Autor(es): dc.creatorPaula, R. R.-
Autor(es): dc.creatorPinheiro, R. C. [UNESP]-
Autor(es): dc.creatorGuillemot, J.-
Autor(es): dc.creatorGonçalves, J. L.M.-
Autor(es): dc.creatorBouillet, J. P.-
Data de aceite: dc.date.accessioned2022-02-22T00:45:20Z-
Data de disponibilização: dc.date.available2022-02-22T00:45:20Z-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-06-25-
Data de envio: dc.date.issued2021-03-01-
Fonte completa do material: dc.identifierhttp://dx.doi.org/10.1007/s11104-020-04755-2-
Fonte completa do material: dc.identifierhttp://hdl.handle.net/11449/205791-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/11449/205791-
Descrição: dc.descriptionAims: Belowground interactions are still poorly understood in mixed-species forests. We investigated the effects of soil fertility on belowground processes in mixed planted forests. Methods: The dynamics and traits of Eucalyptus and Acacia mangium fine roots (diameter < 2 mm) in plantations with 50% of each species were studied in a randomized block design established in a nutrient depleted soil. Stands with NPK fertilization applied at planting (F+) were compared to unfertilized stands (F-). Results: In the 0–15 cm soil layer, Eucalyptus root mass density (RMD) was higher than Acacia RMD by 50% in F+ and 10% in F-, considering both ages. At 34 months of age, Eucalyptus RMD was 94% higher near Acacia trees than near Eucalyptus trees in F-. In this layer, Eucalyptus specific root length (SRL) was 21% higher than Acacia SRL at 16 months of age and was 10% higher in F- than in F+ at 34 months of age. The cumulative Eucalyptus fine root length production between 16 and 34 months was 66% higher in F- than in F+ in the 0–1 m soil layer. Conclusions: Fertilization increased the competition between species and led to a partial exclusion of Acacia fine roots from the nutrient-rich topsoil. Soil exploration by Eucalyptus roots in the vicinity of Acacia trees was higher in F- than in F+, which suggests that unfertilized trees benefited from facilitation through higher soil N availability and direct N transfer from Acacia trees.-
Descrição: dc.descriptionESALQ Forest Science Department Escola Superior de Agricultura Luiz de Queiroz Universidade de São Paulo-
Descrição: dc.descriptionUniversité de Lorraine AgroParisTech INRAE UMR Silva-
Descrição: dc.descriptionSchool of Agriculture São Paulo State University (UNESP)-
Descrição: dc.descriptionEco&Sols CIRAD INRA IRD Montpellier SupAgro Univ Montpellier-
Descrição: dc.descriptionCIRAD UMR Eco&Sols-
Descrição: dc.descriptionESALQ Soil Science Department Escola Superior de Agricultura Luiz de Queiroz Universidade de São Paulo-
Descrição: dc.descriptionUFES Centro de Ciências Agrárias e Engenharias Alto Universitário, S/N Guararema-
Descrição: dc.descriptionSchool of Agriculture São Paulo State University (UNESP)-
Formato: dc.format559-577-
Idioma: dc.languageen-
Relação: dc.relationPlant and Soil-
???dc.source???: dc.sourceScopus-
Palavras-chave: dc.subjectCompetition-
Palavras-chave: dc.subjectFacilitation-
Palavras-chave: dc.subjectFerralsol soil-
Palavras-chave: dc.subjectFertilization-
Palavras-chave: dc.subjectMixed-species plantations-
Título: dc.titleNutrient supply modulates species interactions belowground: dynamics and traits of fine roots in mixed plantations of Eucalyptus and Acacia mangium-
Tipo de arquivo: dc.typelivro digital-
Aparece nas coleções:Repositório Institucional - Unesp

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