scholarly journals Zoneamento Geoambiental para o uso sustentável de aquíferos no município de Pirassununga-SP (Geoenvironmental Zoning for sustainable use of aquifers in the municipality Pirassununga-SP)

2019 ◽  
Vol 12 (4) ◽  
pp. 1277
Author(s):  
Josmila Fernandes Da Silva ◽  
Isadora Haddad Ruiz ◽  
João Vitor Roque Guerrero ◽  
Luiz Eduardo Moschini

O avanço das atividades antrópicas no processo de ocupação do ambiente físico desencadeia impactos negativos na qualidade e disponibilidade de recursos naturais. Entre os recursos impactados estão os depósitos de águas subterrâneas que apresentam suscetibilidade a diferentes fontes de contaminação, natural ou antrópica, de acordo com características do meio, que apresenta capacidade de potencializar ou reduzir esse processo. Dentre as atividades com maior potencial a contaminação das unidades aquíferas está o cultivo de monocultura de cana-de-açúcar e áreas agrícolas com solo exposto, ambas identificadas no município de Pirassununga-SP. Neste sentido o objetivo do presente trabalho foi elaborar uma proposta preliminar de Zoneamento Geoambiental que visa o uso sustentável dos aquíferos em Pirassununga-SP, de modo a conservar a qualidade e disponibilidade das águas subterrâneas. Com base na análise do meio físico e antrópico da área e estudo, foi possível obter a caracterização geoambiental e interpretar as potencialidades à contaminação das unidades aquíferas presentes em Pirassununga-SP. Os resultados foram obtidos elaborando-se a cartografia geoambiental da área, e posterior aplicação das metodologias de Soma Ponderada e Lógica Fuzzy que relacionam os fatores geoambiental, no qual zonas com diferentes potenciais à contaminação foram geradas. Em sua maioria a área urbana, localizada na região central do município, demonstrou potencial baixo e médio a contaminação, enquanto zonas de alto e muito alto potencial encontram-se na área rural. A partir disso, o zoneamento demonstrou-se uma ferramenta potencial básica para o desenvolvimento de ações de gestores públicos, visando um planejamento territorial mais sustentável.   A B S T R A C TThe advancement of anthropogenic Activities in the occupation process of the physical environment triggers negative impacts on the quality and availability of natural resources. Among the impacted resources are groundwater deposits that present susceptibility to different sources of contamination, natural or anthropic, according to characteristics of the physical environment, which present capacity to enhance or reduce this process. Among the activities with the greatest potential the contamination of the aquifers units are contamination of the aquifers units is the cultivation of sugar cane monoculture and agricultural areas with exposed soil, both identified in the municipality of Pirassununga-SP. Hence the objective of this work was to draw up a preliminary proposal of geoenvironmental zoning aimed at the sustainable use of aquifers in Pirassununga-SP, in order to preserve the quality and availability of groundwater. Through the analysis of the physical and anthropic environment of the municipality, it was possible to obtain the characterization of the study area and interpret as potentialities contamination of the units aquifers presents in Pirassununga-SP. The results were obtained from the drawing up the geoenvironmental cartography of the area, and subsequent application of the methodology of Weighted Sum and Fuzzy Logic that related the geoenvironmental factors, in which, areas with different potentials to the contamination generated. Mostly the urban area, located in the central region of the municipality demonstrated low and medium potential for contamination and, how much the high and very high potential areas are in the rural area. From this, the zoning demonstrated a basic potential tool for the development of actions of public managers, aiming at a more sustainable territorial planningKeywords: geoenvironmental cartography, contamination potential, gis, zoning.

Author(s):  
Julio Manoel França da Silva ◽  
José Manoel Gonçalves Gândara

O geoturismo é um segmento da atividade turística em áreas naturais que visa à conservação, a divulgação e o uso sustentável de locais onde os aspectos geológicos, geomorfológicos e paleontológicos do meio físico se destacam por seus valores estéticos, científicos, didáticos, culturais ou econômicos. Buscando contribuir com métodos voltados a esse segmento do turismo, este trabalho objetivou analisar o potencial da cartografia digital na conservação, divulgação e uso sustentável de locais de interesse geológico-geomorfológico (geossítios) de Prudentópolis (PR), tendo como base revisão bibliográfica, trabalhos de campo e processamento de dados cartográficos digitais em Sistema de Informações Geográficas (SIG). Realizou-se caracterização de quatro geossítios, os quais estão inseridos geologicamente na Formação Teresina (Salto/Canyon do rio São João e Salto Barão do rio Branco/Vale do rio dos Patos) e na Formação Serra Geral (Salto São Francisco/Vale do rio São Francisco e Morro do Chapéu/Afloramento da Formação Botucatu). Os dados levantados foram disponibilizados em planos de informação e banco de dados georreferenciados no software de geoprocessamento Arcgis 9.3, o qual se revelou como um importante instrumento de elaboração de produtos cartográficos voltados à atividade geoturística. Geotechnology applied to conservation, disclosure and use of geoturistical attractive in Prudentópolis (PR, Brazil) ABSTRACT The geotourism is a segment of the touristic activity in natural areas which aims the conservation, the disclosure and the sustainable use of places where the geological, geomorpholocical and paleontological aspects of the physical environment stand out by their aesthetic, scientific, instructional, cultural or economic values. Aiming to contribute with methods directed to this tourism’s segment, this paper aimed to analyze the potential of digital mapping in conservation, disclosure and sustainable use of geological-geomorphological interesting places (geosites) in Prudentópolis (PR, Brazil), based on literature review, field works and digital cartographic data’s processing in Geographic Information System (GIS). The characterization of four geosites was verified, which are geologically inserted in Teresina Formation (Fall / São João River’s Canyon and Barão do Rio Branco Fall/ Patos’ River Valley) and in Serra Geral Formation (São Francisco Fall/ São Francisco River’s Valley and Chapéu’s Hill / Outbreak of Botucatu Formation). And the collected data were provided into information plans and georeferenced database in Arcgis 9.3 geoprocessing software, which has proved to be an important tool for developing cartographic products focused on geotourism activity. KEYWORDS: Geotourism; Natural Areas; Geotechnologies; Geoturistical Maps; Prudentópolis.


2021 ◽  
Vol 26 (2) ◽  
pp. 117-124
Author(s):  
Muhammad Raihan Pambudi ◽  
Sulistiono Sulistiono ◽  
Risa Tiuria ◽  
Sonja Kleinertz

The study of zoonotic parasites is of extreme importance, because they can cause diseases in humans and can negatively impact the marketability of fisheries products. The present study aims to determine the infection patterns of helminth parasites infecting mackerel tuna in Banten waters, as well as to clarify possible negative impacts to its fish host. Mackerel tunas were caught from March to July 2020 in Banten Bay and Sunda Strait and obtained from Karangantu fishing port and Muara Angke fishing port. For parasite identification, different staining methods were used (KOH, Semichon’s acetocarmine). Helminth parasites that has been found in this study belonged to the taxa of Monogenea (1), Digenea (1), Nematoda (2) and Acanthocephala (2). The helminth parasite species with the highest prevalence was Hexostoma euthynni (P: 16.7%) from Banten Bay and Neorhadinorhynchus sp. (P: 53.3%) from Sunda Strait followed by a possible zoonotic parasite Anisakis sp. with 46.7% prevalence. In this study four new locality records were established. Pathogenic impacts from the isolated parasites to the examined fish could be expected, especially for the revealed H. euthynni, which may decrease the fish’s ability to perform proper respiration, cause irritation to gills, and anemia. Preventive actions on anthropogenic activities will be required in order to keep the natural conditions in the areas of Banten Bay and Sunda Strait. Regular fish parasite monitorings will lead to the sustainable use of fisheries resources, assess possible fish health impacts, and zoogeographical distributions of zoonotic and pathogenic parasites.


2019 ◽  
Vol 21 (2) ◽  
pp. 962-975
Author(s):  
Emerson Rodrigues Lima ◽  
Ana Carla Alves Gomes ◽  
Ícaro Paiva de Oliveira ◽  
Maria Lucia Brito da Cruz

A pesquisa trata de uma análise da relação sociedade natureza no contexto da Área de Proteção Ambiental (APA) do rio Ceará e teve como objetivo principal o estudo dos impactos negativos sofridos a partir dessa interação, descrevendo os principais problemas ocasionados pela ocupação desordenada, como a intervenção nas dunas, poluição do mangue e desmatamento da mata ciliar, os quais condicionam a mudança da dinâmica natural do ambiente causando interferências paisagísticas e biológicas no local. O aporte teórico metodológico embasa-se nas teorias clássicas pertinentes, bem como levantamento de dados secundários, trabalho de campo e a técnica de geoprocessamento para a elaboração de material cartográfico. Os resultados demonstram a urgência em inserir práticas vinculadas a educação ambiental na APA, dessa forma, o trabalho visa servir de subsídio à conscientização da necessidade de preservação deste ambiente, recomendando, assim o diálogo entre a população e os órgãos responsáveis para garantir o uso sustentável da mesma.Palavras-chave: Conservação; Educação Ambiental; Análise Geoambiental. ABSTRACTThe research deals with an analysis of the relation nature-society in the context of the APA (Ambiental Protection Area) of Ceará River and it had as main objective the study of the negative impacts suffered from this interaction, describing the main problems caused by the disordered occupation, such as the intervention in the dunes, mangrove pollution and deforestation of the riparian forest, which condition the change of the natural dynamics of the environment causing landscape and biological interferences in the place. The theoretical methodological support is based on the relevant classical theories, as well as secondary data collection, field work and the geoprocessing technique for the preparation of cartographic material. The results show the urgency to insert practices related to environmental education in the APA, so this work aims to serve as a subsidy to raise awareness of the need to preserve this environment, recommending in this way the dialogue between the population and responsible bodies to ensure sustainable use of the same. Keywords: Conservation; Environmental education; Geoenvironmental Analysis. RESUMENLa investigación aborda un análisis de la relación de la sociedad de la naturaleza en el contexto del Área de Protección Ambiental (APA) del río Ceará y su objetivo principal fue el estudio de los impactos negativos sufridos por esta interacción, describiendo los principales problemas causados por la ocupación desordenada, como el intervención en las dunas, contaminación del manglar y deforestación del bosque ribereño, que condicionan el cambio de la dinámica natural del ambiente causando interferencia biológica y paisajística en el lugar. La base teórica metodológica se basa en las teorías clásicas relevantes, así como en la recolección secundaria de datos, el trabajo de campo y la técnica de geoprocesamiento para la preparación de material cartográfico. Los resultados demuestran la urgencia de insertar prácticas relacionadas con la educación ambiental en la APA, por lo tanto, el trabajo tiene como objetivo apoyar la conciencia de la necesidad de preservar este medio ambiente, recomendando así el diálogo entre la población y los organismos responsables para garantizar un uso sostenible de la misma.Palabras clave: Conservación; Educación ambiental; Análisis geoambiental.


2019 ◽  
Vol 15 (S359) ◽  
pp. 413-414
Author(s):  
María P. Agüero ◽  
Rubén Díaz ◽  
Mischa Schirmer

AbstractThis work is focused on the characterization of the Seyfert-2 galaxies hosting very large, ultra-luminous narrow-line regions (NLRs) at redshifts z = 0.2−0.34. With a space density of 4.4 Gcp−3 at z ∼ 0.3, these “Low Redshift Lyman-α Blob” (LAB) host galaxies are amongst the rarest objects in the universe, and represent an exceptional and short-lived phenomenon in the life cycle of active galactic nuclei (AGNs). We present the study of GMOS spectra for 13 LAB galaxies covering the rest frame spectral range 3700–6700 Å. Predominantly, the [OIII]λ5007 emission line radial distribution is as widespread as that of the continuum one. The emission line profiles exhibit FWHM between 300–700 Km s−1. In 7 of 13 cases a broad kinematical component is detected with FWHM within the range 600–1100 Km s−1. The exceptionally high [OIII]λ5007 luminosity is responsible for very high equivalent width reaching 1500 Å at the nucleus.


2021 ◽  
Vol 10 (6) ◽  
pp. 384
Author(s):  
Javier Martínez-López ◽  
Bastian Bertzky ◽  
Simon Willcock ◽  
Marine Robuchon ◽  
María Almagro ◽  
...  

Protected areas (PAs) are a key strategy to reverse global biodiversity declines, but they are under increasing pressure from anthropogenic activities and concomitant effects. Thus, the heterogeneous landscapes within PAs, containing a number of different habitats and ecosystem types, are in various degrees of disturbance. Characterizing habitats and ecosystems within the global protected area network requires large-scale monitoring over long time scales. This study reviews methods for the biophysical characterization of terrestrial PAs at a global scale by means of remote sensing (RS) and provides further recommendations. To this end, we first discuss the importance of taking into account the structural and functional attributes, as well as integrating a broad spectrum of variables, to account for the different ecosystem and habitat types within PAs, considering examples at local and regional scales. We then discuss potential variables, challenges and limitations of existing global environmental stratifications, as well as the biophysical characterization of PAs, and finally offer some recommendations. Computational and interoperability issues are also discussed, as well as the potential of cloud-based platforms linked to earth observations to support large-scale characterization of PAs. Using RS to characterize PAs globally is a crucial approach to help ensure sustainable development, but it requires further work before such studies are able to inform large-scale conservation actions. This study proposes 14 recommendations in order to improve existing initiatives to biophysically characterize PAs at a global scale.


Author(s):  
Mario Vincenzo Russo ◽  
Ivan Notardonato ◽  
Alberto Rosada ◽  
Giuseppe Ianiri ◽  
Pasquale Avino

This paper shows a characterization of the organic and inorganic fraction of river waters (Tiber and Marta) and ores/soil samples collected in the Northern Latium region of Italy for evaluating the anthropogenic/natural source contribution to the environmental pollution of this area. For organic compounds, organochloride volatile compounds in Tiber and Marta rivers were analyzed by two different clean-up methods (i.e., liquid–liquid extraction and static headspace) followed by gas chromatography–electron capture detector (GC-ECD) analysis. The results show very high concentrations of bromoform (up to 1.82 and 3.2 µg L−1 in Tiber and Marta rivers, respectively), due to the presence of greenhouse crops, and of chloroform and tetrachloroethene, due to the presence of handicrafts installations. For the qualitative and quantitative assessment of the inorganic fraction, it is highlighted the use of a nuclear analytical method, instrumental neutron activation analysis, which allows having more information as possible from the sample without performing any chemical-physical pretreatment. The results have evidenced high levels of mercury (mean value 88.6 µg g−1), antimony (77.7 µg g−1), strontium (12,039 µg g−1) and zinc (103 µg g−1), whereas rare earth elements show levels similar to the literature data. Particular consideration is drawn for arsenic (414 µg g−1): the levels found in this paper (ranging between 1 and 5100 µg g−1) explain the high content of such element (as arsenates) in the aquifer, a big issue in this area.


Antibiotics ◽  
2021 ◽  
Vol 10 (7) ◽  
pp. 750
Author(s):  
Pasquale Marrazzo ◽  
Valeria Pizzuti ◽  
Silvia Zia ◽  
Azzurra Sargenti ◽  
Daniele Gazzola ◽  
...  

Antibiotic resistance is creating enormous attention on the development of new antibiotic-free therapy strategies for bacterial diseases. Mesenchymal stromal stem cells (MSCs) are the most promising candidates in current clinical trials and included in several cell-therapy protocols. Together with the well-known immunomodulatory and regenerative potential of the MSC secretome, these cells have shown direct and indirect anti-bacterial effects. However, the low reproducibility and standardization of MSCs from different sources are the current limitations prior to the purification of cell-free secreted antimicrobial peptides and exosomes. In order to improve MSC characterization, novel label-free functional tests, evaluating the biophysical properties of the cells, will be advantageous for their cell profiling, population sorting, and quality control. We discuss the potential of emerging microfluidic technologies providing new insights into density, shape, and size of live cells, starting from heterogeneous or 3D cultured samples. The prospective application of these technologies to studying MSC populations may contribute to developing new biopharmaceutical strategies with a view to naturally overcoming bacterial defense mechanisms.


2007 ◽  
Vol 6 (12) ◽  
pp. 2214-2221 ◽  
Author(s):  
Lois M. Douglas ◽  
Li Li ◽  
Yang Yang ◽  
A. M. Dranginis

ABSTRACT The Flo11/Muc1 flocculin has diverse phenotypic effects. Saccharomyces cerevisiae cells of strain background Σ1278b require Flo11p to form pseudohyphae, invade agar, adhere to plastic, and develop biofilms, but they do not flocculate. We show that S. cerevisiae var. diastaticus strains, on the other hand, exhibit Flo11-dependent flocculation and biofilm formation but do not invade agar or form pseudohyphae. In order to study the nature of the Flo11p proteins produced by these two types of strains, we examined secreted Flo11p, encoded by a plasmid-borne gene, in which the glycosylphosphatidylinositol anchor sequences had been replaced by a histidine tag. A protein of approximately 196 kDa was secreted from both strains, which upon purification and concentration, aggregated into a form with a very high molecular mass. When secreted Flo11p was covalently attached to microscopic beads, it conferred the ability to specifically bind to S. cerevisiae var. diastaticus cells, which flocculate, but not to Σ1278b cells, which do not flocculate. This was true for the 196-kDa form as well as the high-molecular-weight form of Flo11p, regardless of the strain source. The coated beads bound to S. cerevisiae var. diastaticus cells expressing FLO11 and failed to bind to cells with a deletion of FLO11, demonstrating a homotypic adhesive mechanism. Flo11p was shown to be a mannoprotein. Bead-to-cell adhesion was inhibited by mannose, which also inhibits Flo11-dependent flocculation in vivo, further suggesting that this in vitro system is a useful model for the study of fungal adhesion.


2003 ◽  
Vol 2 (1) ◽  
pp. 35-39 ◽  
Author(s):  
S. Franck ◽  
M. Cuntz ◽  
W. von Bloh ◽  
C. Bounama

In a previous paper, we showed that Earth-type habitable planets around 47 UMa are in principle possible if a distinct set of conditions is warranted. These conditions include that the Earth-type planets have successfully formed and are orbitally stable and, in addition, that the 47 UMa star–planet system is relatively young ([lsim ]6 Gyr). We now extend this study by considering Earth-like planets with different land/ocean coverages. This study is again based on the so-called integrated system approach, which describes the photosynthetic biomass production taking into account a variety of climatological, biogeochemical and geodynamical processes. This approach implies a special characterization of the habitable zone defined for a distinct type of planet. We show that the likelihood of finding a habitable Earth-like planet on a stable orbit around 47 UMa critically depends on the percentage of the planetary land/ocean coverage. The likelihood is significantly increased for planets with a very high percentage of ocean surface (‘water worlds’).


2010 ◽  
Vol 76 (764) ◽  
pp. 383-385 ◽  
Author(s):  
Taiju SHIBATA ◽  
Junya SUMITA ◽  
Taiyo MAKITA ◽  
Takashi TAKAGI ◽  
Eiji KUNIMOTO ◽  
...  

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