https://periodicos.ufsm.br/enflo <p>The conception of the online scientific journal Ecologia e Nutrição Florestal/<em>Ecology and Forest Nutrition</em> started in the Laboratory of Forest Ecology of the Federal University of Santa Maria. It publishes scientific articles, systematic literature reviews and technical notes, in Portuguese, Engilsh and Spanish languages, an on ecology and forest nutrition, with emphasis on the studies of biomass inventories, forest species nutrition, nutrient and carbon cycling, ecology of natural and implanted ecosystems, among other topics.</p> <p><strong>eISSN 2316-980X | Qualis/CAPES (2017-2020) = B4</strong></p> Universidade Federal de Santa Maria en-US Revista Ecologia e Nutrição Florestal - ENFLO 2316-980X <p>The Copyright of the articles published in the journal Ecologia e Nutrição Florestal / <em>Ecology and Forest Nutrition</em> belong to their respective author (s), with the rights of first publication assigned to the Journal. Every time an article is quoted, replicated in institutional repositories and / or personal or professional pages, a link to the article is available on the Enflo website.</p><p> </p><p>Ecologia e Nutrição Florestal /<em>Ecology and Forest Nutrition</em> is licensed under a Creative Commons Attribution-NonCommercial-Share Alike 4.0 International https://creativecommons.org/licenses/by-nc/4.0/.</p> https://periodicos.ufsm.br/enflo/article/view/84367 <p>The objective of this study is to determine the root density of <em>Megathyrsus maximus</em> and <em>Urochloa brizantha</em> forages at a depth of 20 cm alone, in relation to their distances from the tree component in two systems of livestock-forest integration with two entities. For this study, the following livestock-forest integration systems were carried out: a system with 3 years of composting by AEC-043 eucalypts clones spaced in strips of simple lines of 15x2 m and the forage component <em>Megathyrsus maximus</em> cv. Quenia; The other system requires 2 years of growth and AEC-2034 eucalyptus clones with the same forest root and forage component <em>Urochloa brizantha</em> BRS Piatã. Five transects were collected randomly in each of two livestock-forest integration systems and measured 5 distances from the tree component for root collection in the dry period. The roots are separated and dried only for density evaluation. In the area as a livestock-forest integration system with 2 years of life with eucalypts clones AEC-2043 and <em>Urochloa brizantha</em> forage, a higher average production of total density of roots at a distance of 5 meters from the tree component, with value of 11.75 g and less root density at zero distance with 8.63 g. In the 3-year livestock-forest integration system, with AEC-043 eucalyptus clones and Megathyrsus maximus forage component, the highest concentration of root density occurred at distance zero with 10.23 g and lowest root density at distance 5 m with 4.45 g. In both systems, eucalyptus influenced the root system of the forage grass.</p> Hérica André da Silva Amanda Prudente Velozo Paulo Vitor Divino Xavier de Freitas Abílio Rodrigues Pacheco Francine Neves Calil Carlos de Melo e Silva-Neto Copyright (c) 2024 Revista Ecologia e Nutrição Florestal - ENFLO 2024-06-03 2024-06-03 12 e84367 e84367 10.5902/2316980X84367