Data/hora: 08/06/2024 04:49:40

Biblioteca(s): 	Embrapa Florestas.	
Data corrente: 	11/08/2023	
Data da última atualização: 	14/08/2023	
Autoria: 	GOMES, J. B. V.; BOTOSSO, P. C.; LONGHI-SANTOS, T.	
Afiliação: 	JOAO BOSCO VASCONCELLOS GOMES, CNPF; PAULO CESAR BOTOSSO, CNPF; TOMAZ LONGHI-SANTOS, Universidade Federal do Paraná.	
Título: 	Soil chemical attributes relationships around the Araucaria Angustifolia trees in agroforestry systems.	
Ano de publicação: 	2023	
Fonte/Imprenta: 	Acta Ambiental Catarinense, v. 20, n. 1, 2023.	
Páginas: 	16 p.	
DOI: 	http://dx.doi.org/10.24021/raac.v20i1.6570	
Idioma: 	Português	
Conteúdo: 	This work aimed to understand the relationships between araucaria trees and some abiotic factors (soil type, soil organic C and soil nutrient supply) in agroforestry systems (AFS). Soils of two production areas in south-central region of the state of Parana (Bituruna - B and São Mateus do Sul - M) were characterized and soil chemical attributes were determined in microsites close to araucaria trees. B area presented only ?juvenile? trees, while M area was formed by ?juvenile? and ?adult? trees. According to the multiple linear regression analyses, the soil chemical attributes showed an almost total dependence of the microsites depth. Soil chemical attributes dependence was much more diffuse in relation to the distances from the tree insertion in the soil. The non-metric multidimensional scaling ordination according to soil chemical attributes showed a great overlap of behavior of these tree groups. The chemical attributes comparison generated, to a certain extent, a soil fertility deficiency gradient between the microsites of the three groups of trees (MJ < MA < BJ). AFS with shaded Ilex paraguariensis must consider the replacement of nutrients exported by leaf harvest, which will help in the sustainability of the activity. This includes the environmental services that the AFS promotes by maintaining, or even renewing, of the native trees from the local forest, especially araucaria trees, in a productive system.	
Palavras-Chave: 	Floresta ombrofila mista; Forest soil; Multiple linear regressions; Ombrophilous Mixed Forest; Sistemas agroflorestais.	
Thesagro: 	Araucária Angustifólia; Dendrologia; Solo Florestal.	
Thesaurus Nal: 	Dendrochronology.	
Categoria do assunto: 	K Ciência Florestal e Produtos de Origem Vegetal	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1155861/1/AAC-2023-SoilChemicalAraucariaAngustifolia.pdf	
Registro original: 	Embrapa Florestas (CNPF)	
Exemplares: 	CNPF - (58647-1) - UPC - AP - DD -  -  -  - DIS