Estimación de la exportación de nutrientes en genotipos de eucalipto bajo diferentes intensidades de cosecha en el sur de Brasil
| Autor: | Aline Aparecida Ludvichak, Túlio Baroso Queiroz, Mauro Valdir Schumacher, Dione Richer Momolliabstract, Kristiana Fiorentin dos Santos, Elias Frank de Araújo |
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| Přispěvatelé: | Federal University of Santa Maria, Universidade Estadual Paulista (Unesp), Celulose Riograndense, Universidad Regional de Blumenau |
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: | |
| Zdroj: | Idesia (Arica) v.38 n.1 2020 SciELO Chile CONICYT Chile instacron:CONICYT Scopus Repositório Institucional da UNESP Universidade Estadual Paulista (UNESP) instacron:UNESP |
| Popis: | Made available in DSpace on 2020-12-12T01:33:37Z (GMT). No. of bitstreams: 0 Previous issue date: 2020-03-01 The study of the nutrients removed with forest harvesting is presented as an essential fator favoring the sustainable use of forest stands. The research was carried out in an experimental area in Horto Florestal Terra Dura in the municipality of Eldorado do Sul, RS, Brazil, where six Eucalyptus clones were planted. Based on the nutrient stock of each biomass component, the simulation of nutrient removal through biomass harvesting was calculated for three scenarios: (1) harvesting of stemwood, (2) harvesting of stemwood with stembark, and (3) harvesting of all aboveground biomass. In the first scenario, the highest amount of nutrients exported with biomass harvest occurred in the Eucalyptus hybrids E. urophylla x E. globulus (N, K, S, and Fe) and E. urophylla x E. grandis (Ca, B, Cu, and Zn). In the second scenario, the highest nutrient exportation occurred in E. benthamii (Provenance 1) (N, P, Ca, Mn, and B) and hybrid E. urophylla x E. globulus (K, S, and Fe). In the third scenario, the highest nutrient exportation occurred in E. benthamii (Provenance 1) (P, Ca, B, Mn, and Zn), E. grandis (Mg and Cu), and hybrid E. urophylla x E. globulus (N, K, S, and Fe). Harvesting of all aboveground biomass was the most aggressive scenario, showing the highest export of nutrients. However, for reducing the nutritional impact of biomass harvesting, the best scenario was the one in which only stemwood was harvested. Federal University of Santa Maria Department of Forest Engineering State University of São Paulo “Júlio de Mesquita Filho”-UNESP Department of Forest Engineering Celulose Riograndense Universidad Regional de Blumenau State University of São Paulo “Júlio de Mesquita Filho”-UNESP Department of Forest Engineering |
| Databáze: | OpenAIRE |
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