|
|
|
| Registros recuperados: 54 | |
|
|
| Pinto,Leandro Campos; Mello,Carlos Rogério de; Norton,Lloyd Darrell; Poggere,Giovana Clarice; Owens,Phillip Ray; Curi,Nilton. |
| ABSTRACT: The Mantiqueira Range region is one of the most important headwaters in southeastern Brazil. In this context, the relationship between pedology and hydrology has been debated and analyzed in recent years, contributing to the creation of a multidisciplinary science call hydropedology. Therefore, the aim of this study was to evaluate the hydropedological properties of a mountainous Clayey Humic Dystrudept in the Mantiqueira Range region, in the state of Minas Gerais, Brazil, comparing two land-uses, native forest and pasture. The hydraulic conductivity results demonstrated that native forest (MFO) has a strong influence on this parameter, offering conditions for movement of water in the soil that are more adequate in this profile than in pasture.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: S index; Saturated hydraulic conductivity; Soil pore size distribution; Soil erosion; Water quality. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162018000100060 |
| |
|
| |
|
|
| Franco, Juan Agustin; Calatrava-Requena, Javier. |
| This paper analyses the process of adoption of no tillage in South-eastern Spain’s olive groves. Olive tree groves in South-eastern Spain’s mountainous areas are subject to a high risk of soil erosion, which is the main environmental problem for this crop, and have to incur in high costs of soil conservation. This results in a greater difficulty to comply with the practices required to benefit from both the single payment and agri-environmental schemes. In many high-steeped areas, farmers have opted for non-tillage practices as an alternative to other conservation practices. Using our own data from a survey carried out in 2006 among 215 olive tree farmers from the Granada Province in Southern Spain regarding the adoption of soil conservation and management... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Spanish olive groves; Soil erosion; No tillage; Crop Production/Industries; Land Economics/Use. |
| Ano: 2008 |
URL: http://purl.umn.edu/44014 |
| |
|
|
| Franco, Juan Agustin; Calatrava-Leyva, Javier. |
| This paper presents results from a survey carried out in 2005 among 147 olive tree farmers from the Alto Genil River Basin in Southern Spain regarding the adoption of soil conservation and management practices. Olive tree groves in South-eastern Spain's mountainous areas are subject to a high risk of soil erosion and have to incur in high costs of soil conservation. This results in great difficulties to comply with cross-compliance and to benefit from agri-environmental schemes. Our main objectives are to analyse the current level of adoption of soil conservation practices and to analyse which socio-economic and institutional factors determine such adoption. Three Probit models are estimated. Dependant variables are three different soil conservation... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Olive groves; Soil erosion; Soil conservation; Cross compliance; Crop Production/Industries; Q12; Q24. |
| Ano: 2006 |
URL: http://purl.umn.edu/25787 |
| |
|
| |
|
|
| Claassen, Roger; Hansen, LeRoy T.; Peters, Mark; Breneman, Vincent E.; Weinberg, Marca; Cattaneo, Andrea; Feather, Peter; Gadsby, Dwight M.; Hellerstein, Daniel; Hopkins, Jeffrey W.; Johnston, Paul V.; Morehart, Mitchell J.; Smith, Mark. |
| Agri-environmental policy is at a crossroads. Over the past 20 years, a wide range of policies addressing the environmental implications of agricultural production have been implemented at the Federal level. Those policies have played an important role in reducing soil erosion, protecting and restoring wetlands, and creating wildlife habitat. However, emerging agri-environmental issues, evolution of farm income support policies, and limits imposed by trade agreements may point toward a rethinking of agri-environmental policy. This report identifies the types of policy tools available and the design features that have improved the effectiveness of current programs. It provides an indepth analysis of one policy tool that may be an important component of a... |
| Tipo: Report |
Palavras-chave: Conservation programs; Environmental policy; Agricultural policy; Policy instruments; Agricultural program design; Soil erosion; Nitrogen runoff; Environmental Economics and Policy. |
| Ano: 2001 |
URL: http://purl.umn.edu/33983 |
| |
|
| |
|
| |
|
| |
|
|
| Smith, Vincent H.; Goodwin, Barry K.. |
| Recent research has questioned the extent to which government policies, including conservation and risk management programs, have influenced environmental indicators. The impacts of income-supporting and risk management programs on soil erosion are considered. An econometric model of the determinants of soil erosion, program participation, conservation effort, and input usage is estimated. While the Conservation Reserve Program has reduced erosion an average of 1.02 tons per acre from 1982 to 1992, approximately half of this reduction has been offset by increased erosion resulting from government programs other than federally subsidized crop insurance. |
| Tipo: Journal Article |
Palavras-chave: Conservation Reserve Program; Farm policy; Soil erosion; Agricultural and Food Policy. |
| Ano: 2003 |
URL: http://purl.umn.edu/31090 |
| |
|
|
| GOMES, M. A. F.; FILIZOLA, H. F.; PAULA, M. M. de; DIOGO, A.; CERDEIRA, A. L.. |
| O presente trabalho tem por objetivo apresentar os dados de reconhecimento e de seleção de áreas de recarga visualmente mais críticas do Aquífero Guarani, localizadas no município de Mineiros, GO, dentro da porção noroeste da Bacia Sedimentar do Paraná. Os locais selecionados serão objeto de estudo do projeto denominado "Uso agrícola das áreas de recarga do Aquífero Gurani e implicações na qualidade da água subterrânea", principalmente no que se refere à caracterização de áreas que oferecem maior risco de ocntaminação (potencial e efetivo) para a água subterrânea, à partir das atividades agrícolas, como também do projeto intitulado "Recuperação ambiental das nascentes do Rio Araguaia. |
| Tipo: Folhetos |
Palavras-chave: Aquífero; Área de recarga; Agricultura; Impacto ambiental; Agrotóxico; Desmatamento; Erosão do solo; Agriculture; Environmental impact; Pesticides; Deforestation; Soil erosion. |
| Ano: 2000 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/963895 |
| |
|
| |
|
| |
|
|
| Steinmetz,Alice Alonzo; Cassalho,Felício; Caldeira,Tamara Leitzke; Oliveira,Vinícius Augusto de; Beskow,Samuel; Timm,Luis Carlos. |
| ABSTRACT Soil erosion is currently one of the main concerns in agriculture, water resources, soil management and natural hazards studies, mainly due to its economic, environmental and human impacts. This concern is accentuated in developing countries where the hydrological monitoring and proper soil surveys are scarce. Therefore, the use of indirect estimates of soil loss by means of empirical equations stands out. In this context, the present study proposed the assessment of the Revised Universal Soil Loss Equation (RUSLE) with the aid of Geographical Information Systems (GIS) and remote sensing for two agricultural watersheds in southern Rio Grande do Sul - Brazil. Among all RUSLE factors, LS showed the closest patterns to the local when compared to the... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Soil erosion; Revised universal soil loss equation; Geographical information systems; Remote sensing. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1413-70542018000600575 |
| |
|
|
| FILIZOLA, H. F.; ALMEIDA FILHO, G. S. de; CANIL. K.; SOUZA, M. D. de; GOMES, M. A. F.. |
| A erosão acelerada, ou erosão antrópica, é um problema mundial. Vastas áreas estão sujeitas à degradação do solo, às vezes de forma irreversível, por uma série de processos como erosão e desertificação acelerada, compactação e selamento, salinização, acidificação, diminuição da matéria orgânica e da fertilidade do solo e redução da biodiversidade (LAL, 1994). O controle dos processos erosivos deve estar fundamentado em princípios básicos de manejo de solos com o propósito de evitar o impacto das gotas de chuva, facilitar a infiltração de água no solo, e disciplinar o escoamento superficial, seja ele difuso ou, em especial, concentrado, |
| Tipo: Circular Técnica (INFOTECA-E) |
Palavras-chave: Ravina; Voçoroca.; Erosão do solo; Controle da Erosão.; Soil erosion; Erosion control. |
| Ano: 2011 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/915009 |
| |
|
|
| CALDERANO FILHO, B.; ANDRADE, A. G. de; MANZATTO, C. V.; CALDERANO, S. B.; DONAGEMMA, G. K.; MIRANDA, E. A.; PEREIRA, L. A.; MELLO, J. B. de; COSTA, M. R. da; SOUZA, J. S. de. |
| O diagnóstico do meio físico dos reassentamentos rurais no entorno do reservatório da usina hidrelétrica de Manso, no município de Chapada dos Guimarães, teve o objetivo de caracterizar e analisar a estrutura da paisagem, incluindo aspectos físicos e ecológicos, para o planejamento e manejo conservacionista da área. Os procedimentos utilizados envolveram a geração de dados básicos no campo, por meio de mapeamentos temáticos do meio físico, sendo produzidos mapas de solos, relevo, declividade e uso da terra, incluindo vegetação, hidrografia e avaliação da aptidão agrícola das terras. Os resultados produzidos fornecem subsídios básicos para o planejamento e manejo adequado dos recursos solo e água e contribuem para a elaboração do plano de manejo... |
| Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E) |
Palavras-chave: Manejo do Solo; Erosão do Solo; Recurso do Solo; Manejo de Água; Soil management; Soil erosion; Soil resources; Water management. |
| Ano: 2006 |
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1108236 |
| |
|
| |
|
| |
|
| |
|
|
| Gaspari,Fernanda J; Rodríguez Vagaría,Alfonso M; Senisterra,Gabriela E. |
| In a hydrographic watershed, the erosionability (K factor) of the soil evaluation depends on the technical resources, developed applied sciences, and spatial technology available. For the determination of erosionability in the watershed of Pillahuinco Grande s Creek (Argentina) (38°S, 61°15'W), the Universal Soil Loss Equation (USLE) was used by applying a geographic information system (GIS) for the cartographic evaluation. A database of geological, environmental, and soil associations was developed, which indicated that geomorphologic variability, caused by geology and soil, significantly determines the spatial variation of the K factor values, in a range from 0.02 to 0.69 ((t·m²·h)·(ha·J·cm)-1). A new quantification was determined with the simplified K... |
| Tipo: Journal article |
Palavras-chave: GIS; Soil; Soil erosion; USLE; Watershed. |
| Ano: 2009 |
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-16202009000100003 |
| |
| Registros recuperados: 54 | |
|
|
|
