Land Use Intensity
Mostrando 1-12 de 35 artigos, teses e dissertações.
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1. DIFFERENTIAL RESPONSE OF EPIPHYTIC LICHEN TAXA TO AGRICULTURAL LAND USE IN A FRAGMENTED FOREST IN CENTRAL ARGENTINA
ABSTRACT The seasonally dry subtropical forest, especially the Espinal forest in central Argentina (one of the most fragmented ecoregions), is affected by intensive agricultural activity. These activities are the main anthropogenic sources of atmospheric nitrogen compounds and their effects on lichens have been extensively studied, making them excellent ecol
CERNE. Publicado em: 2020-06
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2. Diversity of springtails (Collembola) in agricultural and forest systems in Southern Santa Catarina
Resumo: O objetivo deste estudo foi avaliar a influência do uso do solo na diversidade morfológica de colêmbolos e verificar a relação destes organismos com os atributos físicos, químicos e microbiológicos do solo. Foram coletadas amostras na região Sul de Santa Catarina, envolvendo três municípios: Orleans, Lauro Müller e Siderópolis, nos siste
Biota Neotrop.. Publicado em: 26/08/2019
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3. Mapping and characterization of intensity in land use by pasture using remote sensing
RESUMO A demanda atual por alimentos tem sido atendida por meio da exploração das reservas naturais. O Brasil apresenta 26% da sua extensão ocupada por usos agropecuários, sendo 62% desses, pastagens. Pastagens degradadas apresentam maior intensidade de uso da terra do que pastagens bem manejadas, levando à maior degradação do meio ambiente. Os sistem
Rev. bras. eng. agríc. ambient.. Publicado em: 06/05/2019
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4. Risks associated with a double-cropping production system - a case study in southern Brazil
ABSTRACT: This study assessed the risk exposure of the production system of a typical farm in southern Brazil. Five possible production systems were analyzed, combining three crops (soybeans, corn seasons and wheat) in different crop-year combinations, for example: “Summer soybeans followed by corn” and “Autumn corn followed by winter wheat”. Five di
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-04
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5. Effects of Soil Management Practices on Water Erosion under Natural Rainfall Conditions on a Humic Dystrudept
ABSTRACT Water erosion is the main cause of soil degradation and is influenced by rainfall, soil, topography, land use, soil cover and management, and conservation practices. The objective of this study was to quantify water erosion in a Humic Dystrudept in two experiments. In experiment I, treatments consisted of different rates of fertilizer applied to the
Rev. Bras. Ciênc. Solo. Publicado em: 22/06/2017
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6. Soil Organic Matter Quality in Jatropha spp. Plantations in Different Edaphoclimatic Conditions
ABSTRACT The substitution of native vegetation by agricultural ecosystems can change the quantity and quality of soil organic matter (SOM), and the intensity of these changes depends on the soil type, climate, and land use. The objective of this study was to evaluate the quality of organic matter in chronosequences of Jatropha cultivation in contrasting soil
Rev. Bras. Ciênc. Solo. Publicado em: 27/03/2017
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7. Ecophysiology of deciduous plants grown at different densities in the semiarid region of Brazil
Physiological differences in the Cordia oncocalyx tree growing at different densities in two distinct areas were investigated. An agrosilvopastoral system (AGP) and a secondary forest (SF) were studied. Under both types of land-use, C. oncocalyx presented a relative frequency of approximately 50%, and absolute densities of 670 and 80 individuals per hectare,
Theor. Exp. Plant Physiol.. Publicado em: 2013
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8. AplicaÃÃo do MÃtodo das Isozonas na ObtenÃÃo das EquaÃÃes IDF de Chuvas Intensas dos MunicÃpios de Juazeiro do Norte, Barbalha e Crato - CE / Isozones Method applied in the obtention of the heavy rainfall IDF equations of the Juazeiro do Norte, Barbalha and Crato (CE) municipalities.
The increase in use of urban and rural land demands knowledge on statistically treated data on intensity, duration and frequency of heavy rainfall, allowing better forecasting of peak flow rates - used in the design of drainage networks. The damage caused by flooding of urban and rural areas are only avoided by well dimensioned drainage works, resulting in c
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/11/2011
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9. Fluxos hídricos na microbacia do córrego do Queixada no município de Jataí / Water flows in the stream watershed queixada in the city of Jataí (Go)
The diagnosis of hydrological flow and the rainfall interception by vegetation is justified by the need for knowing the influence of these elements in river basins, where weeds and appropriate use of land are responsible for maintaining the quality of the slopes, avoiding erosion, soil loss, silting of waterways and induces the maintenance of groundwater res
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/08/2011
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10. Fluxos hídricos na microbacia do córrego do Queixada no município de Jataí / Water flows in the stream watershed queixada in the city of Jataí (Go)
The diagnosis of hydrological flow and the rainfall interception by vegetation is justified by the need for knowing the influence of these elements in river basins, where weeds and appropriate use of land are responsible for maintaining the quality of the slopes, avoiding erosion, soil loss, silting of waterways and induces the maintenance of groundwater res
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/08/2011
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11. Analysis Process Degradation / Desertification in Basin Creek Warlock Based on DFC, Municipality of Jaguaribe - Cearà / AnÃlise do processo de degradaÃÃo/desertificaÃÃo na bacia do Riacho Feiticeiro, com base no DFC, municÃpio de Jaguaribe - CearÃ
This research discusses the problem of degradation / desertification in the in the Feiticeiro stream basin. With an area of 236 KmÂ, is located northwest from the city of Jaguaribe, Ceara, inserted in the Jaguaribe river basin, which has a total area of 75.669 km Â. This study was developed based in the methodology of physical conservationist diagnosis, wi
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/03/2011
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12. A spatially distributed hydroeconomic model to assess the effects of drought on land use, farm profits, and agricultural employment.
In this paper a high-resolution linked hydroeconomic model is demonstrated for drought conditions in a Brazilian river basin. The economic model of agriculture includes 13 decision variables that can be optimized to maximize farmers' yearly net revenues. The economic model uses a multi-input multioutput nonlinear constant elasticity of substitution (CES) pro
Water Resources Research. Publicado em: 2011