Plantation Of Trees
Mostrando 13-24 de 55 artigos, teses e dissertações.
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13. Thinning regimes and initial spacing for Eucalyptus plantations in Brazil
ABSTRACT This study focuses on the effects of different thinning regimes on clonal Eucalyptus plantations growth. Four different trials, planted in 1999 and located in Bahia and Espírito Santo States, were used. Aside from thinning, initial planting density, and post thinning fertilization application were also evaluated. Before canopy closure, and therefor
An. Acad. Bras. Ciênc.. Publicado em: 05/02/2018
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14. Wood Permeability in Eucalyptus grandis and Eucalyptus dunnii
ABSTRACT The objective of this study was to evaluate the flow of air and water in Eucalyptus grandis and Eucalyptus dunnii wood. Wood was collected from four trees aged 37 years in an experimental plantation of the Federal University of Lavras, Brazil. Planks were cut off the basal logs to produce specimens for air and water permeability testing. Results ind
Floresta Ambient.. Publicado em: 11/12/2017
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15. Carbon and nutrient stocks of three Fabaceae trees used for forest restoration and subjected to fertilization in Amazonia
ABSTRACT Amazonia is crucial to global carbon cycle. Deforestation continues to be one of the main causes of the release of C into the atmosphere, but forest restoration plantations can reverse this scenario. However, there is still diffuse information about the C and nutrient stocks in the vegetation biomass. We investigated the carbon and nutrient stocks o
An. Acad. Bras. Ciênc.. Publicado em: 31/08/2017
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16. MODELACIÓN DEL EFECTO DE LA PODA Y RALEO SOBRE LAS DEFORMACIONES RESIDUALES LONGITUDINALES EN Eucalyptus globulus Labill.
ABSTRACT A 12-year-old Eucalyptus globulus plantation forest was studied with the aim of assessing and modeling the effect of both pruning and thinning activities on the growth strain. The stand is located in the Andean foothills of Bío Bío region in Chile. Two forest management activities were carried out after 2 and half years from planting, and were eva
Ciênc. Florest.. Publicado em: 2016-09
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17. Annual tree rings in Piptadenia gonoacantha (Mart.) J.F.Macbr. in a restoration experiment in the Atlantic Forest: potential for dendroecological research
ABSTRACT The tree Piptadenia gonoachantha is widely used in forestry and in forest restoration projects, which require methods for evaluating tree growth. Long-term studies are necessary to determine patterns and detect changes in species growth rhythms. Tree ring analysis provides a precise method for determining age and documenting long-term growth trends
Acta Bot. Bras.. Publicado em: 14/07/2016
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18. Late Holocene Vegetation History and Early Evidence of Araucaria angustifolia in Caçapava do Sul in the Lowland Region of Rio Grande do Sul State, Southern Brazil
Little is known about the southernmost occurrence of small areas with Araucaria angustifolia populations in Caçapava do Sul in low elevated areas of Rio Grande do Sul State, about 130 km to the south of to the highlands of southern Brazil where the main distribution of Araucaria is found. This occurrence is about 130 km further south to the main area of Ara
Braz. arch. biol. technol.. Publicado em: 29/04/2016
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19. Soil water dynamics and litter production in eucalypt and native vegetation in southeastern Brazil
High productivity of eucalypt plantations is the result of advances in research that have led to gradual improvements in intensive silvicultural technology. High productivity notwithstanding, eucalypt plantations remain the focus of environmental concerns. Our study aimed to compare the soil water regime, litter fall and nutrients dynamics either in a fragme
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-10
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20. Efecto del raleo sobre el crecimiento y la densidad de la madera de Pinus taeda implantado en Misiones, Argentina
The greatest increase in growth of the plantation may change the physical properties of wood, and therefore may decrease the wood quality for industry. The current paper aimed to evaluate the effect of thinning treatments on growth and wood density of Pinus taedaplanted in Misiones, Argentina (25º 59' S - 54º24' W). The plantation was established in 1985 w
Ciênc. Florest.. Publicado em: 2014-09
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21. Agroforestry systems, nutrients in litter and microbial activity in soils cultivated with coffee at high altitude
Agroforestry systems are an alternative option for sustainable production management. These systems contain trees that absorb nutrients from deeper layers of the soil and leaf litter that help improve the soil quality of the rough terrain in high altitude areas, which are areas extremely susceptible to environmental degradation. The aim of this study was to
Sci. agric. (Piracicaba, Braz.). Publicado em: 2014-04
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22. Seasonal changes in photosynthesis and water-use efficiency of savanna species and eucalypts in Venezuela
Eucalypt plantations in Venezuela occupy 14% of land covered by savannas. Since water use by plantations in the savannas of Mapire (Venezuelan Llanos) was apparently similar to or lower than in the natural vegetation, evaluating how carbon fixation by plantations compares to the natural vegetation could help to elucidate whether plantations have higher water
Theor. Exp. Plant Physiol.. Publicado em: 2013
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23. Photosynthetic analyses of two native Atlantic Forest species in regenerative understory of eucalyptus plantation
Gas exchange, chlorophyll afluorescence, and photosynthetic pigments of Xylopia sericeaA. St.-Hil. and Siparuna guianensis Aubl. were evaluated during the rainy season and the dry season (2009-2010) in three understories with different ecological conditions (irradiance, water availability, and temperature) located in the União Biological Reserve (known as R
Braz. J. Plant Physiol.. Publicado em: 2012-06
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24. Biologia e manejo de Chalcodermus bicolor Fiedler (Col.: Curculionidae: Molytinae), em plantios de eucalipto / Biology and management of Chalcodermus bicolor Fiedler (Col.: Curculionidae: Molytinae), in eucalypt plantations
This work deals to the biology and pest management aspects of the “Eucalypt-trimmer”, a new leaf beetle in the Brazilian eucalypt plantations. Works were developed under lab conditions (Temperature = 25.29 0.20C; RH = 78.26 0.94%; photophase: scotophase = 10:14 hours). Insects were collected from cloned eucalypt in the Mucuri and Caravelas counti
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 27/07/2011