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Impacts of land use and land cover changes on hydrological processes and sediment yield determined using the SWAT model

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International Journal of Sediment Research 2022年第1期37卷 54-69页

作者： Edivaldo Afonso de Oliveira Serr?o Madson Tavares silva Thomás Rocha Ferreira Lorena Concei??o Paiva de Ataide Cleber Assis dos Santos Aline Maria Meiguins de Lima vicente de paulo rodrigues da silva Francisco de Assis Salviano de Sousa denis José Cardoso Gomes Academic Unit of Atmospheric Sciences Federal University of Campina Grande department of Physics Center for Natural and Exact Sciences Federal University of Santa Maria Institute of Technology Civil Engineering Graduate Program Federal University of Pará Earth System Science Center National Institute of Space Research Institute of Geosciences Federal University of Pará

Land use and land cover (LULC) changes strongly affect local hydrology and sediment *** current study focused on a basin in the Brazilian Amazon and had the following three objectives:(1) to perform an effective diagnosis of flow and sediment yield,(2) to evaluate the impacts of LULC changes over the last 40 years on the hydro-sedimentological variables,and (3) to investigate the impacts of the possible trends or breaking points in the flow,surface runoff,and sediment yield *** Soil and Water Assessment Tool (SWAT) model validation showed that the simulated results were consistent with the data measured in the dynamic reproduction of flow ***,changes in LULC altered surface runoff,sediment yield,and flow according to the Mann-Kendall and Pettitt non-parametric *** was also observed that the sub-basins in which pastureland is predominant are more susceptible to increased surface runoff and sediment *** to trend and homogeneity tests,these sub-basins had break points in the time series of these *** the other hand,in the sub-basins whose land cover is predominantly forest,the time series is homogeneous and *** current study highlighted the impacts that 40 years of LULC changes in an Amazonian basin had on hydro-sedimentological variables,which,in turn,can play an important role in changing the hydrological cycle,consequently these changes can also impact diverse human activities in the region,such as agribusiness,livestock,energy production,food security,and public water ***,it is concluded that the SWAT model is a good estimator of hydro-sedimentological processes in Amazonian basins and can be used by decision makers in the management of water and environmental resources.

关键词： Hydrological modeling Sediment yield Amazon basin SWAT model

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Performance of masonry enclosure walls:lessons learned from recent earthquakes

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Earthquake Engineering and Engineering Vibration 2012年第1期11卷 23-34页

作者： Romeu silva vicente Hugo rodrigues Humberto Varum Aníbal Costa Jos António Raimundo Mendes da silva University of Aveiro Civil Engineering department Campus Universitario de SantiagoAveiroPT3810-193Portugal University of Coimbra Civil Engineering Pinhal de MarrocosPolo ⅡCoimbraPT3030Portugal

This paper discusses the issue of performance requirements and construction criteria for masonry enclosure and infill walls. Vertical building enclosures in European countries are very often constituted by non-load-bearing masonry walls, using horizontally perforated clay bricks. These walls are generally supported and confined by a reinforced concrete frame structure of columns and beams/slabs. Since these walls are commonly considered to be nonstructural elements and their influence on the structural response is ignored, their consideration in the design of structures as well as their connection to the adjacent structural elements is frequently negligent or insufficiently detailed. As a consequence, nonstructural elements, as for wall enclosures, are relatively sensitive to drift and acceleration demands when buildings are subjected to seismic actions. Many international standards and technical documents stress the need for design acceptability criteria for nonstructural elements, however they do not specifically indicate how to prevent collapse and severe cracking, and how to enhance the overall stability in the case of moderate to high seismic loading. Furthermore, a review of appropriate measures to improve enclosure wall performance and both in-plane and out-of-plane integrity under seismic actions is addressed.

关键词： RC structures masonry enclosure walls infill walls in-plane out-of-plane cracking performanceimprovement

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Equity issues and the PeCUS index:an indirect analysis of community severance

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Geo-Spatial Information Science 2020年第4期23卷 293-304页

作者： daniela Vanessa Rodriguez Lara Antonio Nelson rodrigues da silva department of Transportation Engineering São Carlos School of EngineeringUniversity of São PauloSão PauloBrazil

Urban barriers are often a consequence of the unplanned expansion of transport infrastructures,housing growth nearby existing transport infrastructures,and the vehicular traffic *** process,also known as“community severance”,is a problem that affects the travel patterns of the population and causes negative impacts to adjacent communities,but it is not easy to *** an alternative to the costly technologies and restricted-access data sometimes used to analyze urban barriers,we propose an analytical approach that assesses community severance levels by classifying the quality of Pedestrian Crossings on Urban Streets(the PeCUS index).Additionally,the approach is used to identify possible inequities nearby the different classification groups regarding demographic *** used the chi-square(χ^(2))test of independence and the standardized Pearson residuals to indicate deficits and excesses of residents regarding the demographic characteristics studied surrounding the urban *** found the following evidences of associations:residents with low-income or those aged up to 19 tend to live close to the worst crossings,whereas residents with permanent mobility constraints or the elderly tend to live near the crossings with the best ***,the study shows that the assessment of community severance by the analysis of the PeCUS index is ***,it reveals that the distribution of residents surrounding the distinct classes of quality of crossings is equitable for vulnerable social groups,except for low-income or young residents.

关键词： Community severance transport barriers pedestrian crossings equity open data geographic information systems(GIS)

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19-year remotely sensed data in the forecast of spectral models of the environment

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International Journal of Digital Earth 2021年第8期14卷 1040-1066页

作者： Fernando Saragosa Rossi Carlos Antonio da silva Junior JoséFrancisco de Oliveira-Júnior paulo Eduardo Teodoro Luciano Shozo Shiratsuchi Mendelson Lima Larissa Pereira Ribeiro Teodoro Auana vicente Tiago Guilherme Fernando Capristo-silva State University of Mato Grosso(UNEMAT) Alta FlorestaMato GrossoBrazil department of Geography State University of Mato Grosso(UNEMAT)SinopMato GrossoBrazil cFederal University of Alagoas(UFAL) MaceióAlagoasBrazil dFederal University of Mato Grosso do Sul(UFMS) Chapadão do SulMato Grosso do SulBrazil eAgCenter School of PlantEnvironmentaland Soil SciencesLouisiana State University(LSU)Baton RougeLouisianaUSA fPostgraduate Program in Agronomy Federal University of Mato Grosso(UFMT)SinopMato GrossoBrazil

The aims of this study were:i)to compare no-till areas in two municipalities located in different regions of Brazil,along with the influence on CO_(2)Flux and GPP,and ii)to verify the difference between environmental factors followed by the trends of these variables regarding future scenarios(ARIMA time-series model number).The study was carried out in two areas with different latitudes in the municipalities of Sinop-MT and Passo Fundo-RS,both in Brazil.A time series of 19 years was performed with data acquired by remote sensing from the following satellites:i)Landsat-8(OLI and TIRS),and ii)TERRA/AQUA(MODIS).The results propound that the spectro-temporal variables are directly influenced by soil management and agricultural practices over the observation time,with a satisfactory correlation in future predictions of the variables for the next ten years,in which presented that the variation of GPP and albedo values for the two study sites would gradually increase until 2028 and the temperature remained constant between the range of its seasonality,and CO_(2)Flux tends to decrease in its seasonality,indicating a higher CO_(2) absorption.

关键词： ARIMA numerical modeling remote sensing orbital products tillage

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Physiological plasticity in eucalyptus clones in the vegetative stage contributes to drought tolerance

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Journal of Forestry Research 2023年第5期34卷 1549-1561页

作者： Vilma Marques Ferreira Jailma Ribeiro de Andrade Claudiana Moura dos Santos Sebastiao de Oliveira Maia Júnior Joao Correia de Araújo Neto Andrea Francisca da silva Santos vicente Mota da silva Lucas Teles Bezerra Laurício Endres Laboratório de Fisiologia Vegetal Campus de Engenharia e Ciências AgráriasUniversidade Federal de AlagoasRio LargoAL57072-900Brazil Laboratório de Ciências Ambientais e Biodiversidade Departamento de Zootecnia.Centro de Ciências AgráriasUniversidade Estadual do MaranhãoSão LuísMA65300-000Brazil Laboratório de Propagação de Plantas.Campus de Engenharia e Ciências Agrárias Universidade Federal de AlagoasRio LargoAL57072-900Brazil Laboratório de Lepidoptera Museu de ZoologiaUniversidade de São PauloIpirangaSão PauloSP04263-000Brazil

With the expansion of eucalyptus crops to areas with severe water limitations,physiological studies involving eucalyptus clones to identify those that are tolerant to water stress become *** objective of this study was to assess morphological and physiological responses by eucalyptus clones subjected to drought stress and *** experiment consisted of three eucalyptus clones:VC865,I224 and I144 and two water regimes:control and water stress followed by rehydration,with six *** water potential,gas exchange,maximum quantum efficiency of photo systemⅡand plant height and stem diameter were evaluated under drought stress and ***6 d of rehydration,the number of leaves,leaf area and dry mass of root,leaf,stem and their total were *** clones showed intense reduction of gas exchange during the drought stress period,and only VC865 and 1144 showed rapid recovery with 3 d of *** 1224 showed greater reduction in height,stem diameter,number of leaves,water potential at midday(Ψ_(w)_(Midday)),and maximum quantum efficiency of photosystemⅡ(F_(v)/F_(m)).Clones VC865and T144 showed lower reductions inΨ_(wMidday)and F_(v)/F_(m) under ***865 had lower reductions in leaf number,leaf area and higher leaf dry mass,while clone I144 had higher height and lower reduction in root dry mass *** these clones showed higher water use efficiency with 3d of *** different phenotypic plasticities gave the clones VC865 and 1144 efficient mechanisms of acclimatization to stress and more drought tolerance,enhancing their greater capacity for recovery after stress,which allowed lower dry mass *** 1224,however,was more susceptible to drought stress,undergoing greater physiological damage with only partial recovery during rehydration.

关键词： Drought Eucalyptus species Gas exchanges Post-stress Root dry mass

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ZnO/CeO_(2)/carbon xerogel composites with direct Z-scheme heterojunctions:Enhancing photocatalytic remediation of 4-chlorophenol under visible light

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Journal of Rare Earths 2024年第2期42卷 314-322,I0003页

作者： Nicolas Perciani de Moraes Maite Birkett de Campos Sanmartin Robson da silva Rocha Abner de Siervo Marcos Roberto de Vasconcelos Lanza D.Amaranatha Reddy Lianqing Yu Liana Alvares rodrigues Escola de Engenharia de Lorena-EEL/USP Estrada Municipal do Campinho S/NCEP 12602-810LorenaSao PauloBrazil Institute of Physics"Gleb Wataghin" Applied Physics DepartmentState University of Campinas13083-859CampinasSPBrazi Instituto de Quimica de Sao Carlos Universidade de Sao PauloAv.Trab.Sao Carlense400-Parque Arnold SchimidtSao CarlosSP13566-590Spain department of Sciences Indian Institute of Information Technology Design and ManufacturingKurnoolAndhra Pradesh518007India School of Materials Science and Engineering China University of PetroleumQingdao266580China

This paper aims to create visible light driven ternary photocatalysts using zinc oxide(ZnO),cerium(IV)oxide(CeO_(2)),and carbon xerogel(CX) as constituent *** use of CeO_(2) is based on the creation of direct-Z-scheme heterojunctions with the ZnO and the consequent diminishing of charge recombination,whereas the carbon xerogel inclusion is predicted to minimize bandgap energy,decrease electro n-hole reco mbination,and boost specific surface *** re,the choice of the black-wattle tannin as a carbonaceous precursor was targeted at the development of an environmentally friendly and affordable *** existence of the hexagonal phase of zinc oxide and cubic structure of the cerium(IV) oxide in the ternary material was confirmed by X-ray diffractometry and X-ray photoelectron spectroscopy,with the latter also suggesting chemical bonding between the ZnO and the CX due to the creation of zinc oxycarbide *** inclusion of the carbon xerogel provokes a significant modification in the morphology of the ternary material,resulting in an increased surface area and smaller particle *** CX/ZnO-CeO_(2) ternary composite obtains the highest photocatalytic efficiency among all the materials studied,degrading 100% of 4-chlorophenol under simulated sunlight and 68% under visible radiation,after 5 *** increased photocatalytic activity can be attributed to the formation of direct Z-scheme heterojunctions between the semiconductors,higher visible light response,and higher specific surface area,as evidenced by the results obtained by active radical scavenging,chronoamperometry,diffuse reflectance spectroscopy,and N_(2) adsorption-desorption isotherms.

关键词： Zinc oxide Cerium(Ⅳ)oxide Carbon xerogel Photocatalysis Direct Z-scheme heterojunction 4-Chlorophenol Rare earths

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Influence of fire on woody vegetation of savanna and forest formations in the Cerrado biome

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Journal of Forestry Research 2023年第5期34卷 1207-1216页

作者： Aline das Gracas Costa Fillipe Tamiozzo Pereira Torres Gumercindo Souza Lima Fabiano rodrigues de Melo Carlos Moreira Miquelino Eleto Torres Bruno Leao Said Schettini vicente paulo Santana Neto AndréLuiz Lopes de Faria department of Forest Engineering Federal University of VicosaUFVVicosaMG 36570-900Brazil department of Geography Federal University of VicosaUFVVicosaMG 36570-900Brazil

Wildfires have environmental,economic,and social impacts,and can shape the landscape and benefit ecosystems such as the *** study evaluated the diversity,similarity,and floristic and structural differences of woody savanna and forest formations of the Cerrado,when affected and not affected by ***-eight 25-400m2 plots were randomly allocated and divided into Burnt Cerrado and Unburnt Cerrado,Burnt Forest,and Unburnt Forest,and divided into three levels of inclusion according to diameter class(smaller than 2 cm,2-5 cm and larger than5 cm).Species were identified,DBH and height measured,and phyto sociological parameters such as volume,diversity,and floristic similarity *** Cerrado had lower diversity,density,and dominance at all inclusion levels compared to the Unburnt Cerrado,and showed similarities between treatments at the inclusion *** Forest had smaller differences in diversity,density,and dominance than Unburnt *** formation was similar at level 1 of inclusion and in the total ***,it was dissimilar at lower *** lower density and diversity of species at the lowest levels of inclusion was associated with mortality from fire.

关键词： Biodiversity Brazil Burning Floristic Phytosociology

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Blackberry jam fruit(Randia formosa(Jacq.)***):An Amazon superfruit with in vitro neuroprotective properties

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Food Bioscience 2022年第6期50卷 944-953页

作者： Giovanna Nascimento de Mello e silva Edson Silvio Batista rodrigues Isaac Yves Lopes de Macêdo Henric Pietro vicente Gil Hericles Mesquita Campos paulo César Ghedini Lidya Cardozo da silva Erica Aparecida Batista Giovanna Lopes de Araújo Boniek Gontijo Vaz Tânia Aparecida Pinto de Castro Ferreira Renê Oliveira do Couto Eric de Souza Gil LAFAM – Laboratory for Pharmaceutical and Environmental Analysis Faculdade de FarmáciaUniversidade Federal de GoiásGoiâniaGoiásBrazil DFar – Pharmacology department Instituto de Ciências BiológicasUniversidade Federal de GoiásGoiâniaGoiásBrazil LaCEM – Laboratory of Chromatography and Mass Spectometry Instituto de QuímicaUniversidade Federal de GoiásGoiâniaGoiásBrazil LANAL – Laboratory of Nutrition and Food Analysis Faculdade de NutriçãoUniversidade Federal de GoiásGoiâniaGoiásBrazil Universidade Federal de São João del-Rei (UFSJ) Campus Centro-Oeste Dona Lindu (CCO)DivinópolisMinas GeraisBrazil

We report on the bromatological profile,the preliminary phytochemical composition,the antioxidant capacity,and the in vitro neuroprotective effects of Blackberry Jam *** were the major macronutrients(20 g/100 g)in both pulp and seeds(36.5 g/100g),that also possess a low lipid content(0.1 g/100 g and 0.7 g/100,and 86 Kcal/100 g,respectively).Eleven compounds including a diterpenoid dimmer,a lactone,coumarins,sphingosines,and flavonoids have been identified for the first time in the pulp and seeds of *** by mass *** electrochemical index of the hydroalcoholic extract of the pulp(BJFp respectively)and an appreciable energy value(89 Kcal/100 g)was around 6.8μA/V and two reversible cathode peaks were observed up to 0.5 V,thus shedding light to its antioxidant capacity,which was also evidenced by the DPPH•and ABTS+radical scavenging assays(IC50 of 3.30±0.23μg/mL and 18.17±1.21μg/mL,respectively).The BJFp protected against oxidative stress in vitro by significantly decreasing both the lipid peroxidation and contents of carbonyl proteins in a dose-dependent manner in murine brain cells treated with ***,the BJFp increased the superoxide dismutase(EC50 of 11.99±0.35μg/mL)and catalase(EC50 of 69.53±0.43μg/mL)*** BJFp markedly decreased both the in vitro acetylcholinesterase(IC50 of 227.9±0.34μg/mL)and butyrylcholinesterase(IC50 of 8.77±0.40μg/mL)***,besides being a great source of energy,this Amazon superfruit may be promising for enhancing the treatment outcomes of ailments related to oxidative stress,which require further in vivo investigation.

关键词： Antioxidants Cholinesterase inhibitors Electrochemistry Functional foods Phenolic compounds

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Evidence of endometrial amino acid metabolism and transport modulation by peri-ovulatory endocrine profiles driving uterine receptivity

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Journal of Animal Science and Biotechnology 2017年第4期8卷 852-865页

作者： Moana rodrigues Franca Maressa Izabel Santos da silva Guilherme Pugliesi Veerle Van Hoeck Mario Binelli department of Animal Reproduction School of Veterinary Medicine and Animal ScienceUniversity of Sao Paulo225Duque de Caxias Norte Ave.Jd.Elite13635-900 PirassunungaSPBrazil Gamete Research Centre University of AntwerpAntwerpBelgium

Background: In beef cattle, changes in the periovulatory endocrine milieu are associated with fertility and conceptus growth. A large preovulatory follicle(POF) and the resulting elevated concentrations of progesterone(P4) during diestrus positively affect pregnancy rates. Amino acids(AA) are important components of maternally derived secretions that are crucial for embryonic survival before implantation. The hypothesis is that the size of the POF and the concentration of P4 in early diestrus modulate the endometrial abundance of SLC transcripts related to AA transport and metabolism and subsequently impact luminal concentrations of AA. The follicle growth of Nelore cows was manipulated to produce two experimental groups: large POF and CL(LF-LCL group) and small POF and CL(SF-SCL group). On day 4(D4; Experiment 1) and day 7(D7; Experiment 2) after Gn RH-induced ovulation(Gn RH treatment = D0), the animals were slaughtered and uterine tissues and uterine washings were collected. q RT-PCR was used to evaluate the expression levels of AA transporters in D4 and D7 endometrial *** concentrations of AA were quantified in D4 and D7 uterine washings by ***: Transcript results show that, on D4, SLC6 A6, SLC7 A4, SLC17 A5, SLC38 A1, SLC38 A7 and SCLY and on D7 SLC1 A4, SLC6 A1, SLC6 A14, SLC7 A4, SLC7 A7, SLC7 A8, SLC17 A5, SLC38 A1, SLC38 A7, SLC43 A2 and DDO were more abundant in the endometria of cows from the LF-LCL group(P dance of transcripts related to AA transport and metabolism in the endo

关键词： Amino acids Beef cattle Sex steroids Uterus

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Surface runoff and soil erosion in a natural regeneration area of the Brazilian Cerrado

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International Soil and Water Conservation Research 2020年第2期8卷 124-130页

作者： Karina dos Santos Falcao Elói Panachuki Felipe das Neves Monteiro Roniedison da silva Menezes Dulce B.B.rodrigues Jullian Souza Sone paulo Tarso S.Oliveira department of Agronomy State University of Mato Grosso do SulAgronomy DepartmentAquidauanaMS79200-000Brazil Federal University of Mato Grosso do Sul CxP 549Campo GrandeMS79070-900Brazil department of Hydraulics and Sanitation Sao Carlos School of EngineeringUniversity of Sao PauloCxP.359Sao CarlosSP13566-590Brazil

The Brazilian Cerrado has been converted to farmland,and there is little evidence that this expansion will decrease,mainly because agriculture is the country's main economic ***,the impacts of intense modification of land use and land cover on surface runoff and soil erosion are still poorly un-derstood in this ***,we assessed surface runoff and soil loss in a woodland Cerrado area under a former pasture area,which was abandoned and has undergone a natural regeneration process for 7 years(RC).Its results were compared with that found in an undisturbed area of woodland Cerrado(CE),40-month-old eucalyptus(3.0×1.8 m)(EU),and pasture under rotational grazing(PA).The study was conducted on Red Acrisol located in the Brazilian *** performed rainfall simulations on a plot of 0.7 m2 and using three constant rainfall intensities of 60,90,and 120 mm h-1 for 1 *** each rainfall intensity,we carried out four repetitions using different plots in each treatment,i.e.12 plots per treat-ment studied and 48 plots in *** noted that the soil physical properties were improved in RC and,consequently,water infiltration and soil erosion control;RC presented surface runoff and soil loss different from EU and PA(a=0.05).The macroporosity and soil bulk density affected surface runoff in RC and PA because the RC was used as pasture and is currently regenerating back to the cerrado *** the rainfall intensity increased,EU became more similar to PA,which showed the highest surface runoff and soil *** findings indicate that natural regeneration processes(pasture to the cerrado vegetation)tend to improve the soil ecosystem services,improving infiltration and reducing surface runoff and soil erosion.

关键词： Cerrado deforestation Forest regeneration Soil erosion

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