Erosion Processes
Mostrando 13-24 de 144 artigos, teses e dissertações.
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13. Genesis and Classification of Sodic Soils in the Northern Pantanal
ABSTRACT The simultaneous occurrence of high levels of exchangeable sodium percentage (ESP) and alkalinity in soils imposes restrictions on plant development and affects physical properties such as porosity, bulk density, permeability, and hydraulic conductivity. Although sodic soils are frequent in the flood plain of the São Lourenço River, northern Panta
Rev. Bras. Ciênc. Solo. Publicado em: 02/10/2017
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14. Sediment Morphology, Distribution, and Recent Transport Dynamics in a Reforested Fragment
Abstract Erosion generates large amounts of sediment, which may be deposited at the site of origin, on the slope of a hill, or along waterways. The transportability of each type of sediment by runoff and its potential for subsequent deposition largely depends on its morphological features and particle size distribution. The aim of this study is to describe a
Rev. Bras. Ciênc. Solo. Publicado em: 24/08/2017
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15. Analysis of Potential for Linear Erosion in the Cerrado Biome Using Morphopedology
ABSTRACT The Cerrado is a vegetation complex with a wide variety of phytophysiognomies, and sustainable management is essential for maintaining biodiversity. Morphopedology is a tool that can assist in developing plans for control of soil and land use, especially in evaluating the potential of soil erosion processes. This technique allows landscape units con
Rev. Bras. Ciênc. Solo. Publicado em: 22/06/2017
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16. Cordão Formation: loess deposits in the southern coastal plain of the state of Rio Grande do Sul, Brazil
ABSTRACT Loess consists of silt-dominated sediments that cover ~10% of the Earth's surface. In southern South America it occurs in Argentina, Bolivia, Paraguay and Uruguay, and its presence in southern Brazil was never studied in detail. Here is proposed a new lithostratigraphic unit, Cordão Formation, consisting of loess deposits in the southern Brazilian
An. Acad. Bras. Ciênc.. Publicado em: 2016-12
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17. Genesis of Soils Formed from Mafic Igneous Rock in the Atlantic Forest Environment
ABSTRACT Different parent materials participate in the formation of soils in the hilly landscape of “Mar de Morros” in the Atlantic Forest environment. Those derived from mafic igneous rock (gabbro) frequently show erosion problems because of land use, which is aggravated by the mountainous relief and soil attributes. This study evaluated the main pedoge
Rev. Bras. Ciênc. Solo. Publicado em: 23/06/2016
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18. TIPOLOGÍA Y USOS DEL SUELO EN AGROECOSISTEMAS DEL VALLE DEL GUAMUEZ, PUTUMAYO – COLOMBIA
ABSTRACT The objective of this research was to analyze different agroecosystems located in a region of the Departamento de Putumayo (Colombia) and its sociocultural relationship with productive and land conservation contexts, based on the conceptual and methodological aspects of agroecology. A mixed methods study was carried out, and soil testing methodologi
Soc. nat.. Publicado em: 2015-08
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19. Temporal Geobiotic Mapping: a conceptual mapping technique toward visualising geobiotic areas in cross-section
Geobiota are defined by taxic assemblages (i.e., biota) and their defining abiotic breaks, which are mapped in cross-section to reveal past and future biotic boundaries. We term this conceptual approach Temporal Geobiotic Mapping (TGM) and offer it as a conceptual approach for biogeography. TGM is based on geological cross-sectioning, which creates maps base
Rev. Bras. entomol.. Publicado em: 20/09/2013
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20. Valuation and assessment of soil erosion costs
Soil is an essential natural resource for humans and an important part of the environment. However, soil is often used and managed inappropriately, causing its erosion and degradation, with concomitantly negative social, political and economic impacts. This study aimed to discuss sustainable development; and losses and problems caused by soil erosion, and to
Sci. agric. (Piracicaba, Braz.). Publicado em: 2013-06
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21. Características hidrogeoquímicas da bacia de drenagem do rio Sorocaba, SP: processos erosivos mecânicos e químicos / Hydrogeochemical characteristics of the Sorocaba River basin drainage, SP: mechanical and chemical erosion processes
A caracterização hidrogeoquímica da bacia do rio Sorocaba foi realizada a partir do estudo detalhado das cargas fluviais particulada e dissolvida, considerando a dinâmica dos transportes das principais espécies químicas, bem como os aportes atmosféricos e antrópicos, identificando os processos erosivos mecânicos e químicos predominantes na bacia de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/08/2012
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22. Estudos das características técnicas e operacionais das galerias de águas pluviais como subsídios para gestão patrimonial e estabelecimento de diretrizes para projetos de sistemas de drenagem urbana
The purpose of this work is to study the emergence and evolution of pathological manifestations in urban stormwater channels and relate them to technical and operational characteristics of concrete structures so that plans for urban drainage systems management are developed, as well as new concepts for stormwater channel projects. The main reference is the D
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/04/2012
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23. DIAGNÓSTICO AMBIENTAL DO MEIO FÍSICO DO CAMPO DE INSTRUÇÃO DE SANTA MARIA (CISM) / ENVIRONMENTAL DIAGNOSIS OF THE PHYSICAL ENVIROMENT AT CAMPO DE INSTRUÇÃO DE SANTA MARIA (CISM)
The Campo de Instrução de Santa Maria (CISM) is a military training area for armored troops. Such practices have caused environmental impacts related to the destruction of vegetation, erosion, and siltation of waterways. Since there is no environmental data for the area, the following research aimed to develop an environmental diagnosis of the physical env
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 20/03/2012
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24. Biologia populacional do poliqueta exogone (exogone) breviantennata Hartmann-Schröder, 1959 (Syllidae: Exogoninae) / Population biology of the polychaete exogone (exogone) breviantennata Hartmann-Schröder, 1959 (Syllidae: Exogoninae)
The study of the syllid Exogone (Exogone) breviantennata was conducted in two soft bottom beds of the mytilid Mytella charruana at Camaroeiro and Cidade beaches, located on the northern coast of São Paulo. To characterize the study areas, samples were taken monthly between february 2006 and february 2007 at Camaroeiro, and between april 2006 and april 2007
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/02/2012