Soil Degradation Processes
Mostrando 13-24 de 68 artigos, teses e dissertações.
-
13. Aggregation agents and structural stability in soils with different texture and organic carbon contents
The flat pampas in the state of Santa Fe in Argentina have soils with high silt content, variable carbon content, and diverse degrees of structural degradation. Aggregate stability has been used as an indicator of the structural condition of the soil. This study aimed to quantify the effect of the addition of crop residues and root activity on the agents of
Sci. agric. (Piracicaba, Braz.). Publicado em: 2015-02
-
14. Ocorrência e degradação de quinolonas por processos oxidativos avançados
In this review, the presence of quinolones in the environment, their risks and the available processes for water decontamination were addressed. Their occurrence in surface waters and also in soil raises concerns about the risk of the development of resistant bacteria and other potential chronic effects. AOPs (UV/H2O2, Fenton, photo-Fenton, and UV/TiO2) and
Quím. Nova. Publicado em: 2014-06
-
15. 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
-
16. Secretion of laccase and manganese peroxidase by Pleurotus strains cultivate in solid-state using Pinus spp. sawdust
Pleurotus species secrete phenol oxidase enzymes: laccase (Lcc) and manganese peroxidase (MnP). New genotypes of these species show potential to be used in processes aiming at the degradation of phenolic compounds, polycyclic aromatic hydrocarbons and dyes. Hence, a screening of some strains of Pleurotus towards Lcc and MnP production was performed in this w
Braz. J. Microbiol.. Publicado em: 19/03/2013
-
17. Serrapilheira aplicada como biomonitor na avaliação do bosque urbano do Instituto de Pesquisas Energéticas e Nucleares, São Paulo,SP / Litterfall as biomonitors applied the evaluation of urban forest of the Nuclear and Energy Research Institute, São Paulo, SP
Several processes are considered responsible for ecosystems maintaining. Among them we can highlight mineral cycling that corresponds to the cycle of chemical elements that flow between the biotic compartments, leaves and litterfall, and abiotic, atmosphere and soil. These chemical elements accumulate of the active form through the absorption in the tissues
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 10/11/2011
-
18. Atividade energética e riscos no litoral de Linhares : problemas e perspectivas para a gestão do território
This work aims to analyze the economic and technological risks associated with concentration of coastal energy activity in Linhares, Espírito Santo, and evaluate the ability of the legal instruments of the municipality in managing these risks. To this end, based on analysis of the coastal space organization, we sought to identify, characterize and delineate
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 24/08/2011
-
19. 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
-
20. Evaluation of the lisem model for the simulation of hydrosedimentologic processes in a small rural catchment on the basalt slopes of Rio Grande do Sul, Brazil / Avaliação do modelo LISEM na simulação dos processos hidrossedimentológicos de uma pequena bacia rural localizada nas encostas basálticas do Rio Grande do Sul
The intensive cultivation of the areas of southern Brazil that have poor agricultural potential (shallow soils on steep, basaltic hillsides) has contributed to the degradation of the environment by increasing rates of soil erosion and sediment yields. In this study, traditional monitoring methods have been combined with concurrent mathematical modeling to ve
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
-
21. Simulação da dinâmica de carbono em bacias hidrográficas
In most aquatic ecosystems respiration exceeds autochtonous gross primary production leading to a negative net ecosystem production. Recent studies attributes this condition to allochtonous organic matter degradation processes, so the inland water carbon cycle should be linked to the input of organic carbon from the catchment. This work contributes to a bett
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
-
22. AVALIAÇÃO DAS POTENCIALIDADES DAS TERRAS, ADEQUAÇÃO DO USO DAS TERRAS E INDICADORES DE QUALIDADE DOS SOLOS: subsídios para o planejamento conservacionista no perímetro irrigado de Mirorós (Ba). / EVALUATION OF THE LAND POTENTIALS, LAND USE ADEQUACY AND SOIL QUALITY INDICATORS: subsidies for conservationist planning in the irrigated Perimeter of Mirorós (Ba).
The practice of irrigated agriculture represents an increase of agricultural productivity, especially for areas with water deficit. Lands are frequently characterized erroneously which, coupled with lacking conservation measures, imposes serious consequences for the environment. In reality, any land use and intensive soil management when carried out unsustai
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 31/05/2010
-
23. Identificação dos produtos de degradação química/eletroquímica do herbicida ametrina / Identification of degration products of chemical/electrochemical herbicide ametrine
In this study the identification of degradation products ametrina (AME), pesticides used on a large scale in the sugar industry. The improvement in the treatment of environmental conditions is of paramount importance to the agricultural regions, since the contamination of soil and groundwater contamination is almost inevitable. In relation to industries prod
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 23/02/2010
-
24. CARACTERÍSTICAS GEOAMBIENTAIS DO MUNICÍPIO DE JAGUARIBE CE E SUAS IMPLICAÇÕES NOS PROCESSOS DE DEGRADAÇÃO AMBIENTAL
The degradation of the natural resources worries studious of diverse areas of the knowledge and the population, in general. In semi-arid regions, as the north-eastern Brazilian, this problematic is aggravated due to the natural vulnerability ally to the process of use and occupation of the land. In the State of the Ceará, the areas more affected by the degr
Publicado em: 2009