scholarly journals CARACTERIZAÇÃO MORFOMÉTRICA DA MICROBACIA HIDROGRÁFICA CÓRREGO ÁGUA DO BREJÃO – ANHEMBI, SP

2019 ◽  
Vol 34 (01) ◽  
pp. 113-123
Author(s):  
Letícia Duron Cury ◽  
Amanda Aparecida de Lima ◽  
Ana Clara De Barros ◽  
Thyellenn Lopes de Souza ◽  
Sérgio Campos

CARACTERIZAÇÃO MORFOMÉTRICA DA MICROBACIA HIDROGRÁFICA CÓRREGO ÁGUA DO BREJÃO – ANHEMBI, SP   LETÍCIA DURON CURY¹; AMANDA APARECIDA DE LIMA²; ANA CLARA DE BARROS³; THYELLENN LOPES DE SOUZA4; SÉRGIO CAMPOS⁵   Departamento de Engenharia Rural, Faculdade de Ciências Agronômicas (Unesp/FCA), Av. Universitária, nº 3780 - Altos do Paraíso, Botucatu - SP, 18610-034, [email protected], [email protected], [email protected], [email protected], [email protected]   RESUMO: A análise morfométrica possui como característica diagnosticar mudanças, por meio de parâmetros morfológicos e seus processos, que ocorrem com ou sem interferência das atividades humanas. Com isso, o trabalho teve como objetivo realizar a caracterização morfométrica da microbacia hidrográfica do Córrego Água do Brejão, no município de Anhembi-SP, por meio do levantamento de alguns parâmetros relacionados à dimensão, forma, relevo e drenagem, com a utilização do Sistema de Informação Geográfica (SIG) IDRISI 17.0 Selva, do software CartaLinx e da carta planialtimétrica do IBGE de nome Anhembi, datada de 1991. A partir dos resultados obtidos, foi possível constatar que a microbacia possui área (A) de 1.929 ha e perímetro (P) de 18,60 km. As características relacionadas à forma da microbacia, apontaram um formato ovalado e redondo, o que proporciona uma tendência a enchentes de média à alta. As características do relevo indicaram uma declividade média (D), considerada suave ondulado, proporcionando um menor risco de erosão, pois apresenta baixa velocidade de escoamento superficial. O coeficiente de rugosidade (RN) identificou solos apropriados para agricultura. Para as características relacionadas à drenagem, os valores da densidade de drenagem (Dd), confirmaram o baixo escoamento superficial da microbacia. Dessa forma, a atual situação da microbacia induz em um melhor planejamento em relação à conservação ambiental por meio de um plano de monitoramento.   Palavras-chaves: Morfometria, sistemas de informação geográfica, geoprocessamento, conservação ambiental.    MORPHOMETRIC CHARACTERIZATION OF CÓRREGO ÁGUA DO BREJÃO WATERSHED – ANHEMBI/SP   ABSTRACT: Morphometric analysis has the characteristic of diagnosing changes, through morphological parameters and their processes, which occur with or without human activities interferences. The aim of this study was to perform the morphometric characterization of Água do Brejão stream watershed, Anhembi-SP, evaluating some parameters related to size, shape, relief and drainage, using the Geographical Information System (GIS) - IDRISI 17.0 Selva, the CartaLinx software and the IBGE planialtimetric chart named Anhembi, dated 1991. It was possible to verify in the results that the watershed has area (A) of 1,929 ha and perimeter (P) of 18.60 km. Related to the shape of the watershed, indicated an oval and round shape, providing a tendency to medium to high flood. The relief characteristics indicated a medium slope (D), considered smooth undulating, providing a lower risk of erosion, because a lower runoff velocity. The roughness coefficient (RN) identified suitable agriculture soils. For the drainage, values of drainage density (Dd) confirmed the low watershed surface runoff. Thus, the current microbasin situation leads to better planning in relation to environmental conservation through a monitoring plan.   Keywords: Morphometry, geographic information systems, geoprocessing, environmental conservation.

Irriga ◽  
2015 ◽  
Vol 1 (1) ◽  
pp. 52-65
Author(s):  
Sergio Campos ◽  
Andrea Cardador Felipe ◽  
Marcelo Campos ◽  
Aline Minarelli Reche

GEOPROCESSAMENTO APLICADO NA CARACTERIZAÇÃO MORFOMÉTRICA DA MICROBACIA DO RIBEIRÃO DESCALVADO – BOTUCATU, SP SÉRGIO CAMPOS1; ANDREA CARDADOR FELIPE1 E MARCELO CAMPOS2, ALINE MINARELLI RECHE1  1 Departamento de Engenharia Rural, Faculdade de Ciências Agronômicas - FCA - UNESP - Botucatu - São Paulo - Brasil.  E-mail: [email protected] Departamento de Engenharia de Biossistemas, UNESP - Tupã - São Paulo - Brasil.  E-mail: [email protected]  1 RESUMO Esse trabalho objetivou a aplicação de geoprocessamento na  caracterização morfométrica da  microbacia do Ribeirão Descalvado – Botucatu (SP) através do Sistema de Informação Geográfica – Selva, visando a preservação, racionalização do seu uso e recuperação ambiental.   A microbacia apresenta uma área de 2228,61ha e está localizada entre os paralelos 22o 50' 05" a 22o 54' 26" de latitude S e 48o 22' 29" a 48o 26' 36"  de longitude W Gr.  A base cartográfica utilizada foi a carta planialtimétrica de Botucatu (SP), em escala 1:50000 (IBGE, 1969) na  extração das curvas de nível, da hidrografia e da topografia, para determinação dos índices morfométricos. Os resultados mostram que os baixos valores da densidade de drenagem, associados à presença de rochas permeáveis, facilitam a infiltração da água no solo, diminuindo o escoamento superficial e o risco de erosão e da degradação ambiental, bem como o baixo valor do fator  de forma amparado pelo índice de circularidade indicam que a microbacia é mais alongada e com menor susceptibilidade à ocorrência  de enchentes mais  acentuadas. O parâmetro ambiental de coeficiente de rugosidade permitiu classificar a microbacia para vocação com floresta e reflorestamento. Palavras-chave: morfometria, hidrografia e SIG  CAMPOS, S,;  FELIPE, A.C.; GARCIA, Y.M.; CAMPOS, M.; FERREIRA, L.T.L. GEOPROCESSING APPLIED TO  MORPHOMETRIC CHARACTERIZATION OF THE RIBEIRÃO DESCALVADO  MICRO WATERSHED - BOTUCATU, SP   2 ABSTRACT The objective of this study was to evaluate  geoprocessing  to morphometrically characterize the Ribeirão Descalvado micro watershed – Botucatu, SP by the Geographic Information System (GIS) – Selva for preservation, rationalization of its use and environmental restoration.   The micro watershed is 2,228.61 ha   between the geographic coordinates: 22° 50' 05" to 22° 54' 26 "  latitude  S  and 48° 22' 29" to  48° 26' 36"  longitude W Gr.  The cartographic basis was the planialtimetric chart of Botucatu (SP), 1: 50000 scale (IBGE, 1969) , used for extraction of level, hydrography and topography curves  to determine morphometric indices.   The results showed that  low values of drainage density associated with the presence of permeable rocks facilitates ground water infiltration which decreases surface runoff, erosion risks and environmental degradation.  The low value of the shape factor supported by the circularity index shows that the micro watershed is more elongated and at lower risk of   more pronounced floods.   The   roughness coefficient environmental parameter   classified the micro watershed for forest and reforestation. Keywords: Morphometry, hydrography and GIS


2019 ◽  
Vol 46 (3) ◽  
pp. 75
Author(s):  
Leonardo Lima dos Santos ◽  
Vinícius De Oliveira Ribeiro ◽  
Jonailce Oliveira Diodato

The morphometric characterization of watersheds has great importance and appliance for the prediction of phenomena such as floods. The objective of this study was to delimitate and characterize morphometrically the hydrographic basins that encompass the urban area of the Municipality of Dourados / MS – Brazil, which derived from estimated physical variables obtained by applying a license-free GIS software. Based on a Digital Elevation Model (DEM), the following microcatchment characteristics were determined: area, perimeter, slope, altitude, and watercourse orders. Four morphometric parameters that express a direct or inverse relationship with the water quantity factors of a hydrographic source were calculated and analyzed, being them: compactness coefficient, shape factor, circularity index, and drainage density. By comparing the studied basin results, it was observed that Água Limpa, Água Boa, and Laranja Azeda basin streams are more susceptible to flooding, especially considering the measurement factor and drainage density.


2018 ◽  
Vol 2 (1) ◽  
pp. 28-42 ◽  
Author(s):  
Shanti Mahto ◽  
Anuj Kushwaha ◽  
Siva Subramanian M. ◽  
Nikita Nikita ◽  
T. B. N. Singh

Artificial recharge plays a prominent role in the sustainable management of groundwater resources. The study has proposed a methodology to viable artificial recharge structure using geographical information system (GIS) and empirical equation techniques for augmenting groundwater resources in the Ranchi urban and rural area of Ranchi District, Jharkhand. The thematic layers for geomorphology, drainage density, order of streams, runoff and trend has been prepared in the GIS environment using convection and remote sensing data. It has been found that the slope and topographic gradient of Ranchi region is one of the major governing factors, which restricts to hold surface water stagnant. Jumar watershed is found as the most feasible watershed for the construction of check dams/percolation tanks followed by Lower Subarnarekha watershed. Out of 15 deeper exploratory wells, 14 are declining. Harmu watershed is found to be in the worst condition in terms of availability of runoff water. Harmu, Kanke, Bariyatu, Namkum, Doranda, Hinoo and Hatia have found as the most suitable locations for installation of RTRWH within the Ranchi urban area. Based on the available field information, check dams are suggested as the most promising artificial recharge structures for Ranchi rural environment.


Water ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 704
Author(s):  
Hussein Al-Ghobari ◽  
Ahmed Z. Dewidar

An increasing scarcity of water, as well as rapid global climate change, requires more effective water conservation alternatives. One promising alternative is rainwater harvesting (RWH). Nevertheless, the evaluation of RWH potential together with the selection of appropriate sites for RWH structures is significantly difficult for the water managers. This study deals with this difficulty by identifying RWH potential areas and sites for RWH structures utilizing geospatial and multi-criteria decision analysis (MCDA) techniques. The conventional data and remote sensing data were employed to set up needed thematic layers using ArcGIS software. The soil conservation service curve number (SCS-CN) method was used to determine surface runoff, centered on which yearly runoff potential map was produced in the ArcGIS environment. Thematic layers such as drainage density, slope, land use/cover, and runoff were allotted appropriate weights to produced RWH potential areas and zones appropriate for RWH structures maps of the study location. Results analysis revealed that the outcomes of the spatial allocation of yearly surface runoff depth ranging from 83 to 295 mm. Moreover, RWH potential areas results showed that the study areas can be categorized into three RWH potential areas: (a) low suitability, (b) medium suitability, and (c) high suitability. Nearly 40% of the watershed zone falls within medium and high suitability RWH potential areas. It is deduced that the integrated MCDA and geospatial techniques provide a valuable and formidable resource for the strategizing of RWH within the study zones.


1992 ◽  
Vol 14 (1) ◽  
pp. 83
Author(s):  
Donhuijse n ◽  
Knobloc h ◽  
Callie s ◽  
Rütten A.

2000 ◽  
Vol 4 (4) ◽  
pp. 204-207
Author(s):  
Carlos Roberto de Resende Miranda ◽  
Liane Deligdisch ◽  
Joan Gil ◽  
Peter Dottino

2013 ◽  
Vol 85 (3) ◽  
pp. 1149-1156 ◽  
Author(s):  
Rodrigo Y. Fujimoto ◽  
Mikaelle S. Neves ◽  
Ruda F.B. Santos ◽  
Natalino C. Souza ◽  
Marcia V.S. do Couto ◽  
...  

A total of 281 specimens of freshwater armored ornamental fish species (Leporacanthicus galaxias, Lasiancistrus saetiger, Cochliodon sp., Hypostomus sp., Pseudacanthicus spinosus, Ancistrus sp. and Rineloricaria cf. lanceolata) were captured at the hydrological basin of Guamá River, Pará, Brazil. The infection by Trypanosoma spp. was inspected. The morphological and morphometric characterization of the parasites and the hematological parameters were determined. Leporacanthicus galaxias and Pseudacanthicus spinosus presented 100% infection prevalence, and the other species showed a variable prevalence of infection. The parasites showed clearly different morphotypes and dimensions, and probably belong to different species. The hematological response to the infection varied with the host. Cochliodon sp. showed no differences between infected and not infected fish. In other species several modifications on some hematological parameters were found, but apparently without causing disease. It is emphasized the possibility of introduction of the parasites in new environments due to the artificial movements of these ornamental fish.


Nanoscale ◽  
2017 ◽  
Vol 9 (36) ◽  
pp. 13707-13716 ◽  
Author(s):  
Anna D. Protopopova ◽  
Rustem I. Litvinov ◽  
Dennis K. Galanakis ◽  
Chandrasekaran Nagaswami ◽  
Nikolay A. Barinov ◽  
...  

High-resolution atomic force microscopy imaging reveals the role of fibrinogen αC regions in the early stages of fibrin self-assembly.


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