Vegetation Continuous Field
Mostrando 1-12 de 17 artigos, teses e dissertações.
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1. Soil Compressibility under Irrigated Perennial and Annual Crops in a Semi-Arid Environment
ABSTRACT In irrigated soils, a continuous state of high moisture reduces resistance of the soil to applied external forces, favouring compaction. The aim of this study was to evaluate the susceptibility to compaction of developed calcareous soils in irrigated annual and perennial cropping systems of the Apodi Plateau, located in the Brazilian semi-arid regio
Rev. Bras. Ciênc. Solo. Publicado em: 20/07/2017
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2. Is It Possible to Classify Topsoil Texture Using a Sensor Located 800 km Away from the Surface?
ABSTRACT It is often difficult for pedologists to “see” topsoils indicating differences in properties such as soil particle size. Satellite images are important for obtaining quick information for large areas. However, mapping extensive areas of bare soil using a single image is difficult since most areas are usually covered by vegetation. Thus, the aim
Rev. Bras. Ciênc. Solo. Publicado em: 03/11/2016
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3. Xyridaceae of Viruá National Park, Roraima state, Brazil
Abstract A taxonomic treatment of the Xyridaceae in the Viruá National Park is presented. Located in Roraima state, northern Brazil, the park comprises a mosaic of lowland vegetation types, including forests, wetlands, and one of the largest continuous areas of campinarana in the Brazilian Amazon Basin. Xyridaceae are represented in the park by 20 species i
Rodriguésia. Publicado em: 2015-06
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4. Reproductive biology and early establishment of Pinus elliottii var. elliottii in Brazilian sandy coastal plain vegetation: implications for biological invasion
Pinus is the most invasive woody taxon, exceeded only by herbaceous plants. This study reports the reproductive biology and early establishment of Pinus elliottii Engelm. var. elliottii, describing its invasive properties in a protected natural area of the Brazilian coastal sandy plains. We evaluated the seed germination and rain, longevity of seed viability
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-04
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5. Estratégias reprodutivas de Leiothrix vivipara (Bong.) Ruhl (Eriocaulaceae) na Serra do Cipó
Pseudovivipary is a kind of vegetative reproduction characterized by the development of plantlets on reproductive structures. This form of reproduction occurs in plants living in terrestrial environments with high seasonality such as the Arctic, highlands, or deserts. Leiothrix vivipara (Eriocaulaceae), an endemic species from the campos rupestres vegetation
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 28/02/2012
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6. Caracterização morfológica, fisiológica e bioquímica da Corticeira-do-banhado em condições de alagamento / Caracterização morfológica, fisiológica e bioquímica da Corticeira-do-banhado em condições de alagamento / Morphological, physiological and biochemical caracterization of Corticeira-do-banhado in flooding conditions / Morphological, physiological and biochemical caracterization of Corticeira-do-banhado in flooding conditions
The Erythrina crista-galli L., popularly known as corticeira-do-banhado, is a medium sized tree belonging to family Fabaceae, known especially for their vibrant colored flowers. The cork is listed as a plant immune to the court, by CONAMA, such is the devastation of their habitat and due to its importance in the restoration of riparian vegetation and restora
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 29/09/2011
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7. Tipologia e fragmentação das terras úmidas do cerrado na alta bacia do Rio Araguaia, estado de Goiás / Typology and fragmentation wetland savanna int he high Araguia River basin, Goiás state
The aim of this research is to call the attention to the humid areas preservation for they are natural habitat with special dynamic and genesis and that they have been damaged by the gradual development of the use of the soil in the latest year. The upper basin of Araguaia river were chosen as an area study to follow systematically the development of Cerrado
Publicado em: 2010
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8. Beija-flores (Aves: Trochilidae) e seus recursos florais em uma área de caatinga da Chapada Diamantina, Bahia, Brasil
This study investigated the species of hummingbird occurring in an area of caatinga vegetation, examining their seasonal activities, the assemblages of plants that they used, as well as the floral characteristics and flowering phenology of that vegetation. These surveys were performed in an area of arboreal caatinga in Chapada Diamantina, municipality of Muc
Zoologia (Curitiba). Publicado em: 2009-06
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9. Influência do uso da terra na incidência de processos de dinâmica superficial na região de Marília (SP)
The study area comprises the western portion of the Marília Plateau, State of São Paulo, southeastern Brazil, whose geological substrate encompasses Cretaceous sedimentary rocks of the Bauru Group and local Cenozoic units like colluvium aprons, fluvial terrace deposits, in situ regoliths, and modern alluvial deposits. In a geomorphologic sense, the study a
Publicado em: 2008
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10. Mapeamento de vegetação do estado de Minas Gerais utilizando dados MODIS / Vegetation mapping of Minas Gerais state using MODIS data
The use of moderate spatial resolution and almost temporal daily resolution satellite images is a viable option to monitor natural or cultivated vegetation and its dynamics. The State of Minas Gerais in Brazil, due to it´s diverse biomes and fisionomies was selected as the study area for dissertation. The aims of the present work were: (a) to analyze the ve
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 02/10/2006
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11. Mapeamento de vegetação do estado de Minas Gerais utilizando dados MODIS / Vegetation mapping of Minas Gerais state using MODIS data
The use of moderate spatial resolution and almost temporal daily resolution satellite images is a viable option to monitor natural or cultivated vegetation and its dynamics. The State of Minas Gerais in Brazil, due to it´s diverse biomes and fisionomies was selected as the study area for dissertation. The aims of the present work were: (a) to analyze the ve
Publicado em: 2006
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12. Parâmetros químicos da fertilidade de um planossolo submetido a diferentes sistemas de cultivo após dezenove anos. / Fertility Chemical parameters of the one Albaqualf submitted the different cultural systems during for nineteen years.
The inadequate management of cultural tecnics as well as the continuous use of the soil, can alter soil physical, chemical and biological properties. In order to increase crop productivity and to lower production costs without changing the soil physical and chemical properties, a field experiment with alternative cropping systems is being conducted in an Alb
Publicado em: 2006