2019
DOI: 10.4025/actasciagron.v41i1.42626 View full text |Buy / Rent full text
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Abstract: The aim of this study was to model the individual height and volume of eucalyptus wood in two integrated crop-livestock-forest systems (ICLF1 and ICLF2) in Campo Grande, a city in the state of Mato Grosso do Sul, Brazil. Classic nonlinear growth models were adjusted for height (Logistic, Gompertz, Richards, Weibull, Van Bertalanffy, Brody, Mitscherlich, and Chapman and Richards) and volume (Shumacher-hall nonlinear, Takata, Honner, Logistic, Gompertz, and Weibull) in two structural arrangements: ICLF1, with a … Show more

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“…However, due to its ease of use and, consequently, costeffective advantage, the single-entry equation was recommended. Good performances of single-entry models compared with double-entry ones in estimating the volume of eucalypt trees established in agroforestry systems in the savanna region were also related by Lemos-Júnior et al (2016) and Abrantes et al (2019). The Husch model was indicated, together with the Spurr model, by Santos et al (2019) for estimating the volume of Khaya ivorensis trees established in agroforestry systems, due to its goodness of fit and cost-effective.…”
Section: Discussionmentioning
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“…However, due to its ease of use and, consequently, costeffective advantage, the single-entry equation was recommended. Good performances of single-entry models compared with double-entry ones in estimating the volume of eucalypt trees established in agroforestry systems in the savanna region were also related by Lemos-Júnior et al (2016) and Abrantes et al (2019). The Husch model was indicated, together with the Spurr model, by Santos et al (2019) for estimating the volume of Khaya ivorensis trees established in agroforestry systems, due to its goodness of fit and cost-effective.…”
Section: Discussionmentioning
“…Indeed, some efforts have been made to develop volumetric equations for trees in these systems (Abrantes et al 2019;Lemos-Junior et al 2016;Silva et al 2020;Aguiar Júnior et al 2022). However, uncertainty about the best models persists due to scatter in assessment methods, models tested, biomes, species, and spatial arrangements, as noted by Aguiar Júnior et al (2022).…”
Section: Introductionmentioning
“…It also has a strong correlation with other tree attributes, such as height, volume, and. Therefore, some studies also reported the diameter is the best variable to represent tree growth biomass (Puri et al, 2013;Lisboa et al, 2018;Abrantes et al, 2019). According to the results, the mean diameter of 25 sample trees was 16 cm with a minimum of 6.80 cm and a maximum of 25.89 cm (Table 1).…”
Section: Resultsmentioning
“…In a study of productivity and economic evaluation of crop-livestock-forest integration systems (ILPF), in Campo Grande -MS, the height did not show any difference between the tested spacing, with the clonal hybrid E. urophylla x E. grandis (clone H13), with 20.7 m for the spacing in ILPF of 14 m x 2 m, and in ILPF with 22 m x 2 m, being 21.6 m, at 8 years of age (Abrantes, et al, 2019). Ferreira, et al (2017) studied the growth and production of Eucalyptus grandis, E. pellita, E. saligna, and E. urophylla and the hybrid Eucalyptus urophylla x E. grandis.…”
Section: Discussionmentioning