Hernandez Marquez J.,Biologa |
Fernandez Maillard M.,Psicologa
Carreteras | Year: 2016
This article speaks about the difficulty of road layouts in territory of complex features such as Tenerife. Next, we consider the importance of the island landscape and the relationship established between the Road and the Territory, as the landscape is at once transformed but also made visible by the road. The challenge of integrating roads from an environmental and landscaping point of view is therefore raised, providing them with a multifunctional character, minimizing its impact and the resources consumption. Then we present the work that the Council of Tenerife has developed to face this challenge. It is structured around the development of common criteria for its integration and application in every different phase that must be consider in the implementation of Roads: planning, functional, holding, and design criterias, presenting examples of their implementation through actions already completed in Tenerife.
Integrated environmental assessment of the areas registered in the federal program of Payment for Hydrological Environmental Services. Case Study: Ajusco, Mexico [Evaluación ambiental integrada de áreas inscritas en el programa federal de Pago por Servicios Ambientales Hidrológicos. Caso de estudio: Ajusco, México]
Saavedra Diaz Z.M.,Biologa |
Perevochtchikova M.,Colegio de Mexico
Investigaciones Geograficas | Year: 2017
Since the specific problem of deforestation on an international level, they have created compensation mechanisms for ecosystem services, which have recently been increasing interest in the academic and government sectors, however, a lack of information on their potential effects is detected, especially from the aspects of integrative approach and spatial. Therefore, this work presents the case study of the community of San Miguel and Santo Tomas Ajusco, located on the suburbs of México City, because the community has participated in the federal program payments for hydrological environmental services (PHES) since 2004. Based on the construction of longitudinal profiles (which are incorporated thematic geographic information layers) we analyzed if there is correspondence between the potential of ecosystem services and enrolled in the program areas. In addition, the effectiveness of the program regarding deforestation detected in the area was observed. For the profiling, it is noticed the exercise of combining the different layers selected for analysis, forming a two-dimensional model that allows us to appreciate the altitudinal gradient of the area with its biophysical components (vegetation and land use, soil science, geology and landforms highlights) with information environmental Services (ES). This facilitates the analysis of all these variables and has the advantage that it can be adapted to the number of variables we have, since they must only be incorporated to the profile (with pretreatment data). The profiles helped to identify whether registered in the PHES program areas correspond to the most important areas for the provision of environmental services; however, a complementary work was developed consisting of a map which would bring together the most important areas for the contribution of ES; This was generated by applying the statistical model of Jenks’ Natural Breaks “(which allows to discriminate classes by the similarity of values that compose them), in the layers of ES that it had (potential infiltration, carbon stock in forests, surface runoff and provision of habitat), establishing quantitative 5 for each category. The criterion model allow standardize classes; therefore, quantitative categories were matched to (very low, low, medium, high and very high) qualitative categories. Then the “high” and “very high” categories were selected and merged into a map with software tools Arc. MAP 10.1. denominating as “high priority areas for ecosystem services”. ES mapping was deployed with PHES polygons and correspondence between sites on PHES and areas with greatest potential for ES (except for an area of 236.7 hectares) was found. However, in many cases, the highest values of ES not correspond to water resources, as they are more associated with vegetation and biodiversity (carbon stock in forestsand provision of habitat), which helps to conclude that the PHES program should consider other variables and not be restricted to the ES associated with hydrology. Two studies on quantifying forest cover were reviewed in the area (one covers from 1986 to 2010, with a projection to 2030 and the other from 2006 to 2014). The information regarding sites on PHES Program and the result shows that deforestation has remained revised (although the rate decreased in the period 2006-2014) and deforested areas within enrolled in the program areas PHES are greater than those who have not been. Although factors that could contribute to the process are identified, it is concluded that a program like PHES implemented in an isolated manner, has no bearing on the problem of deforestation. Finally, the importance of obtaining the map “high priority areas for ecosystem services”, the most environmentally important areas are identified and this helps manage PHES expanding areas and get other resources or protection status in areas with natural ecosystems. © 2017 Universidad Nacional Autonóma de México
Arai F.K.,Federal University of Grande Dourados |
Pereira S.B.,Federal University of Viçosa |
Engenharia Agricola | Year: 2012
The quantitative knowledge of hydrological parameters (rainfall and flow) and their spatial and temporal variability on the regions or basins should be understood as essential to the efficient planning and management of water resources. Because the Ivinhema Basin, located in the state of Mato Grosso do Sul, Brazil, represents an important inductor on the region agricultural development, characterized as a major producer of grains and meat, it was used to characterize the hydrological study. Knowing the rainfall, flow and drainage area of each of the studied affluent, it was calculated the proportion of contribution of the affluent. To that end, it was proposed the concepts of potential and real contributions, aiming to identify the proportion of contribution of each of the affluent to the formation of the flow in the Ivinhema Basin. The results revealed that: the highest rainfall in the Ivinhema Basin occurred in the headwater regions; the mean specific flow of long duration reduces from the headwater to the mouth of Ivinhema Basin; the Sub-basin of Dorado's River has the highest potential and real contribution for the formation of the Ivinhema Basin flow; and the drainage areas of the affluent Dourados and Vacaria contribute with 53% flow of the basin.
Paulan S.D.C.,São Paulo State University |
Silva H.R.,São Paulo State University |
Lima E.A.C.D.F.,São Paulo State University |
Flores E.F.,São Paulo State University |
And 2 more authors.
Engenharia Agricola | Year: 2012
Visceral Leishmaniasis (VL) is caused by protozoan of genus Leishmania and transmitted by sand flies of genus Lutzomyia, which has been adapted to the peridomicile environment where dogs are their mainly food source, increasing the risk for human cases. In this study, techniques of geoprocessing and spatial statistics were utilized as a contribution to understanding the epidemiological dynamics of VL in the urban area of Ilha Solteira, SP.
Rickli H.C.,Federal University of Paraná |
Fortes A.M.T.,West Parana State University |
Da Silva P.S.S.,Paulista University |
Pilatti D.M.,Biologa |
Hutt D.R.,West Parana State University
Semina:Ciencias Agrarias | Year: 2011
The family Meliaceae has been identified as one of the most promising for biological control, as most species have biologically active compounds. Among the species, the Neem (Azadirachta indica A. Juss) is that stands out most for its efficiency and low toxicity, and it is utilized to control insects, fungi and nematodes. The aim of this work was to verify the allelopathic potential of aqueous extract of fresh leaves of Neem on germination of lettuce, soybeans, maize, beans and Bidens pilosa, as a way to control this weed. The extract was obtained by grinding 200g/L of fresh leaves of the Neem (considered extract 100%) and diluting in distilled water at concentrations of 80, 60, 40, and 20%, and a control with only water. The seeds were kept in the germination chamber at a temperature of 25°C, with photoperiod of 12 hours of light. The aqueous extract affected the germination percentage and average length root of lettuce, with values of 1% and 0.1, cm respectively. For the soybeans, the extract influenced negatively the average time of germination and average speed of germination. There was a drastic reduction of the average root length at higher concentration for soybean, corn and beans. For Bidens pilosa all the parameters analyzed were negatively affected, which means sensitivity to the extract. The bioassay performed in the laboratory showed that the aqueous extract of fresh leaves of Azadirachta indica has allelopathic effect on all species. © Pleiades Publishing, Ltd., 2011.
Palharini M.C.A.,Polo Regional Centro Oeste |
Fischer I.H.,Biologa |
Alves A.R.O.F.,Polo Regional Centro Oeste |
Fileti M.S.,University of Sao Paulo
Revista Brasileira de Fruticultura | Year: 2016
This study aimed to evaluate the effect of alternative products and thermotherapy, singly and in combination, on the physicochemical quality and controlling decay of ‘Pedro Sato’ guavas. Initially the treatments with calcium chloride, potassium phosphite, 1-methylcyclopropene (1-MCP), cassava starch, ethanol followed by chlorine (ethanol+chlorine) and thermotherapy were evaluated for eight days of fruits storage at 22°C. In a second step, four treatments were selected (cassava starch, 1-MCP, thermotherapy and ethanol+chlorine) and evaluated the association of two, applied sequentially, during eight days of fruits storage at 25 °C. The 1-MCP treatment and cassava starch were the most effective in keeping the physicochemical quality of ‘Pedro Sato’ guavas, slowing the weight loss, change of skin color, and contributing to firmness retention. Greater reduction in fruit rot was found in thermotherapy, cassava starch and 1-MCP treatments. The associations of 1-MCP/cassava starch and thermotherapy/cassava starch were the most effective treatments to maintain the quality of ‘Pedro Sato’ guavas, slowing the weight loss, change of skin color, and loss of firmness. Association treatments reduced incidence of decay, especially the ethanol+chlorine/ thermotherapy and thermotherapy/cassava starch that were more efficient until the fourth day of storage. The rots incidence correlated with parameters of skin color and firmness for most association treatments. In general, it is recommended the thermotherapy/cassava starch for guavas stored at 22-25ºC as a way of maintaining the physicochemical quality and delaying at least two days the symptoms of decay. © 2016, Sociedade Brasileira de Fruticultura. All rights reserved.
Krinski D.,Ecologia e Conservacao da Biodiversidade |
Krinski D.,Federal University of Paraná |
Massaroli A.,Biologa |
Massaroli A.,Federal University of Paraná |
And 2 more authors.
Revista Brasileira de Fruticultura | Year: 2014
The use of plants compounds for the control of insects has increased worldwide. This occurs because the vegetal insecticides contains biodegradable compounds, nontoxic products and potentially suitable for use in pest control. Plants of the family Annonaceae are standing out as biopesticides because they are bioactive naturally in addition to presenting cytotoxic activity, antitumor, vermifuge, antimicrobial, immunosuppressive, anti-emetic, inhibiting appetite, antimalarial and also insecticide. The insecticidal activity of Annonaceae is due to the presence of acetogenins, substances that act on mitochondria inhibiting the NADH -ubiquinone oxidoreductase, causing the death of insects. In this review we report the use of Annonaceae in insect control, showing that so far, only 42 species of Annonaceae have information insecticidal activity against just over 60 species of insect pests. This information shows that much research is still needed, especially to get to know the insecticidal activity of other Annonaceae species, in addition to its effects on insect pests not yet studied. So we will have as an alternative to sustainable development, new vegetal insecticides such as those obtained from different Annonaceae species, which can act as an additional tool to balance the excesses of agriculture chemical or conventional.
Brito G.C.B.,Centro Universitario Una |
De Souza D.B.,Centro Universitario Una |
Vasconcelos F.C.W.,Doutora em Ciencias |
Da Conceicao Braga L.,Biologa
Revista em Agronegocio e Meio Ambiente | Year: 2010
The remarkable contribution of the oil sector to world economy leads to a demand that requires more structuring of the sector's production. Concerns related to environmental contamination possibility by petroleum products are on the increase. Pollution of soil, fresh water sources and sea environments caused by petroleum hydrocarbons causes severe problems to human, animal and vegetation health. Current bibliographical revision presents the characteristics of these pollutants, the processes involved in soil contamination, with special reference to biodegradation mechanism, and the bioprospecting of microorganisms capable of such processes. Degrading petroleum hydrocarbons is the property of several microorganism groups. The biological process of remediation, known as bioremediation, is caused by a stimulus in the environment's natural biodegradation. Bioprospecting of naturally selected organisms in areas contaminated by petroleum-derived substances represents an important strategy for the areas' bioremediation.
Costa T.S.A.,Embrapa Recursos Geneticos e Biotecnologia |
Wondracek D.C.,Biologa |
Lopes R.M.,Biologa |
Vieira R.F.,Embrapa Recursos Geneticos e Biotecnologia |
Ferreira F.R.,Embrapa Recursos Geneticos e Biotecnologia
Revista Brasileira de Fruticultura | Year: 2010
Canistel (Pouteria campechiana) is a native fruit from Central America and Mexico. This fruit still not known in Brazil, it presents an orange-yellow pulp rich in carotenoids, which has attracted interest as a potential source of vitamin A. The purpose of this study was to determine the carotenoids content and pro-vitamin A values in the pulp of canistel, as well as the percentage of moisture and lipids in the pulp and seeds. Carotenoids were separated by open column chromatography. The content of total carotenoids was 226 ± 4 μg/g. Violaxantin and neoxantin were the predominant carotenoids with 196 ± 5 μg/g followed by zeta-carotene, beta-carotene 5,6-epoxide, beta-carotene and phytofluene. The seeds presented higher levels of total lipids with 4.6 ± 0.2 %, while pulp had 0.61 ± 0.03 % of total lipid. These results indicate that this fruit presented very high levels of total carotenoids when compared to other fruits regularly consumed, and may be considered as a good source of pro-vitamin A (59 ± 6 RAE/100g). However, the main carotenoids found in Canistel have no pro-vitamin A activity.
Bio.Lo.Ga | Date: 2015-12-16
The present invention concerns the use of perfluoropolyether phosphates, in particular perfluoropolyether diphosphates, as stabilizing agents for polyphenols in cosmetic and/or dermatological compositions for topical application, and it also concerns cosmetic and/or dermatological compositions containing polyphenols and optionally vitamin E and free ascorbic acid, stabilized by perfluoropolyether diphosphates.