Abstract
The influence of the forest component in the crop-livestock-forest integration system depends on several factors, among which are the plant species used and the row spacing established in system deployment. Therefore, the objective of this study was to characterize the tree component dendrometrically using Eucalyptus grandis x urograndis individuals from the CLFI system and to determine the model fit with volumetric models of homogeneous stands. The study area consists of a six year old CLFI system of Eucalyptus grandis x urophylla, located at the municipality of Cachoeira Dourada – GO. Forest inventory and volume measurement were carried out through the Smalian method. The hypsometric relations of Eucalyptus urograndis were adjusted to seven volumetric models. The arrangement proposed in the crop-livestock-forest integration system (CLFI) was efficient. The models tested (Naslund, Ogaya, Schumacher & Hall, Spurr logarithmic, Honner, Takata and Husch) showed adjustments above 87%, where the models Naslund (99.53%) and Ogaya (99.17%) had the best fit. Key words: Naslund, Ogaya, wood production.
Highlights
The economic growth in Brazil is highly connected to the agricultural and livestock sector (Macedo, 2009)
Different planting systems have been adopted in the last decades to combine production and economic growth, mitigating the negative impacts which the agricultural production can exert on natural ecosystems (Macedo, 2009)
The crop-livestock-forest integration (CLFI), known as agrosylvopastoral system, is one of the systems recognized as an alternative to encourage the recovery of degraded areas and environmental conservation, in addition to the financial gains from agricultural and livestock production (Macedo, 2009; Paciullo et al, 2011) Mixed crop-livestock farming systems comprise a key element of the world’s land use and agricultural production
Summary
The economic growth in Brazil is highly connected to the agricultural and livestock sector (Macedo, 2009). An alternative that has stood out in the last years to reach these objectives is to use an integration system that incorporates agricultural, livestock and forestry activities, in a single spatial and/or temporal dimension, seeking a synergistic effect between the agroecosystem components for the sustainability of the production unit, while contemplating its environmental suitability and the enhancement of the natural capital (Balbino et al, 2011). The crop-livestock-forest integration (CLFI), known as agrosylvopastoral system, is one of the systems recognized as an alternative to encourage the recovery of degraded areas and environmental conservation, in addition to the financial gains from agricultural and livestock production (Macedo, 2009; Paciullo et al, 2011) Mixed crop-livestock farming systems comprise a key element of the world’s land use and agricultural production. In Australia, mixed crop-livestock farming has been a major and longstanding feature of agricultural land use; in 2010, about 0.35-0.40 M km of land, a third of the agricultural zone, was occupied by farms, operating both cropping and livestock enterprises (Bell and Moore, 2012)
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