Groundwater recharge behavior based on surface runoff hydrographs in two basins of the Minas Gerais State

Durães, Matheus Fonseca; Mello, Carlos Rogério de

doi:10.4136/ambi-agua.1127

Cited by 11 publications

(12 citation statements)

References 14 publications

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“…It means that the users do not estimate a specific value for a given location (cells in this case), they simply have a special distribution of values without taking into account other physiographical properties of landscape such as continental and topographical properties (Mello et al, 2013). Thus, in most times, a unique rainfall erosivity value is used to represent the entire basin.…”

Section: Rainfall Erosivity (R)mentioning

confidence: 99%

“…To overcome this, for obtaining the rainfall erosivity map we applied the multivariate geographical model proposed by Mello et al (2013), which estimates the mean annual rainfall erosivity based on the latitude, longitude and altitude of each cell of the basin, characterizing R factor in a distributed manner. For that, a digital elevation model is required.…”

Section: Rainfall Erosivity (R)mentioning

confidence: 99%

“…However, it requires the use of tools able to collect, store, manipulate and display spatial data (Durães;Mello, 2013). Therefore, a Geographical Information System (GIS) has been used, especially by applying the technique of map algorithms (Ozcan et al, 2008;Pradhan et al, 2012;Beskow;Norton, 2009).…”

Section: Introductionmentioning

confidence: 99%

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Soil erosion vulnerability in the verde river basin, southern minas gerais

et al. 2014

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Soil erosion is one of the most significant environmental degradation processes. Mapping and assessment of soil erosion vulnerability is an important tool for planning and management of the natural resources. The objective of the present study was to apply the Revised Universal Soil Loss Equation (RUSLE) using GIS tools to the Verde River Basin (VRB), southern Minas Gerais, in order to assess soil erosion vulnerability. A annual rainfall erosivity map was derived from the geographical model adjusted for Southeastern Brazil, calculating an annual value for each pixel. The maps of soil erodibility (K), topographic factor (LS), and use and management of soils (C) were developed from soils and their uses map and the digital elevation model (DEM) developed for the basin. In a GIS environment, the layers of the factors were combined to create the soil erosion vulnerability map according to RUSLE. The results showed that, in general, the soils of the VRB present a very high vulnerability to water erosion, with 58.68% of soil losses classified as "High" and "Extremely High" classes. In the headwater region of VRB, the predominant classes were "Very High" and "Extremely High" where there is predominance of Cambisols associated with extensive pastures. Furthermore, the integration of RUSLE/GIS showed an efficient tool for spatial characterization of soil erosion vulnerability in this important basin of the Minas Gerais state.

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Section: Rainfall Erosivity (R)mentioning

confidence: 99%

Section: Rainfall Erosivity (R)mentioning

confidence: 99%

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Soil erosion vulnerability in the verde river basin, southern minas gerais

et al. 2014

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“…Given that pasture in the MPA is degraded, the Ksat tends to show lesser soil permeability, which affects its infiltration capacity. Therefore, even in areas with high rainfall intensity events, the influence of the Atlantic Forest on the potential of groundwater recharge is highly significant (Durães and Mello, 2013), and promotes a reduction in direct surface runoff as well as in sediment transport.…”

Section: Characterization Of the Hydropedology Elements For Lcwmentioning

confidence: 99%

A hydropedological approach to a mountainous Clayey Humic Dystrudept in the Mantiqueira Range, southeastern Brazil

Pinto

Mello

Norton

et al. 2018

Sci. agric. (Piracicaba, Braz.)

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ABSTRACT:The Mantiqueira Range region is one of the most important headwaters in southeastern Brazil. In this context, the relationship between pedology and hydrology has been debated and analyzed in recent years, contributing to the creation of a multidisciplinary science call hydropedology. Therefore, the aim of this study was to evaluate the hydropedological properties of a mountainous Clayey Humic Dystrudept in the Mantiqueira Range region, in the state of Minas Gerais, Brazil, comparing two land-uses, native forest and pasture. The hydraulic conductivity results demonstrated that native forest (MFO) has a strong influence on this parameter, offering conditions for movement of water in the soil that are more adequate in this profile than in pasture. These results were supported by pore size distribution analyses which showed that soil from native forest has a greater amount of macropores than soil from pasture as well as greater connectivity between the macropores. In general, the MFO site had greater S index values than the micro-catchment taken from pasture, offering favorable physical conditions for the formation of preferential flowpaths in the soil profile and, therefore, better conditions for groundwater recharge. Soil erosion and water quality results confirmed the importance of native forest areas in the interaction between interception of the direct impact of intense precipitation on the soil surface, and hydropedological attributes, such as saturated hydraulic conductivity and porosity.

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“…Its characterization was made based on the separation from streamflows (overland flow and base flow). For that, daily streamflow observations were accounted from 2009 to 2011 were used and the Barnes' method was applied allowing the characterization of the hydrograph recession (Barnes, 1939;Durães;Mello, 2013;Hingray;Picouet;Musy, 2014). This method is based on the identification of inflection points in the runoff (R) hydrographs, considering an exponential behavior for the base flow (Equation 4).…”

Section: Hydrologic Validationmentioning

confidence: 99%

Land-use effect on hydropedology in a mountainous region of Southeastern Brazil

et al. 2017

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In Brazil, the Mantiqueira Range, southeastern region, shelters the last remnants of the ecologically important Upper Montane Tropical Forest. since extensive exploration that has been taking place in this biome for decades, the influence of land-use changes on hydropedology in these areas must be investigated once major land-use changes have been observed. This study aims to evaluate the land-use influence on soil drainable porosity (SDP) in a headwater watershed located in the Mantiqueira Range region, and to validate the proposed methods based on micromorphological and hydrological indicators. The native vegetation of the study area is Atlantic forest that occupies 62% of the area, and the remaining 38% has been used for pasture. Thirty nine combinations of environmental variables were tested, each one generating a map for predicting SDP. The performance of the spatial prediction of SDP was assessed using 20% of the data from the total number of samples collected throughout the watershed. The least values of SDP are due to the process of removal of native forest and replacement by pasture. Areas with high to moderate SDP are associated with native forest fragments demonstrating the effects of the Atlantic Forest on the water infiltration and groundwater recharge processes, given by the greater contribution of baseflow in a forested catchment located within the studied watershed. The analysis of soil micromorphological images provided useful supporting information on the soil porosity system and along with hydrological properties of the watershed helped understand the SDP behavior on subsurface and groundwater storage capacity. Index terms:Upper montane tropical forest; ecological services; mapping modeling; geomorphons. RESUMONo Brasil, a Serra da Mantiqueira, abriga um dos últimos remanescentes da Floresta Tropical de Altitude. Devido a grande exploração que vem ocorrendo neste bioma há décadas, a influência na hidropedologia decorrente das mudanças do uso do solo deve ser investigada. O objetivo deste estudo foi avaliar a influência do uso do solo na porosidade drenável do solo (PDS) em uma bacia hidrográfica localizada na região da Serra da Mantiqueira e validar os métodos propostos com base em indicadores micromorfológicos e hidrológicos. A vegetação nativa da área de estudo é a Mata Atlântica que ocupa 62% da área, e com os 38% restantes utilizados para pastagem. Trinta e nove combinações de variáveis ambientais foram testadas, cada uma gerando um mapa para predizer a PDS. O desempenho da predição espacial da PDS foi avaliado utilizando 20% dos dados do número total de amostras coletadas em toda a bacia hidrográfica. Os menores valores de PDS são devidos ao processo de remoção de floresta nativa e substituição por pastagem. Áreas com altos a moderados valores de PDS estão associadas a fragmentos de florestas nativas que demonstram os efeitos da Mata Atlântica nos processos de infiltração de água e de recarga de água subterrânea na região da Mantiqueira, dada a maior contribuição do fluxo base em ...

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Groundwater recharge behavior based on surface runoff hydrographs in two basins of the Minas Gerais State

Cited by 11 publications

References 14 publications

Soil erosion vulnerability in the verde river basin, southern minas gerais

Soil erosion vulnerability in the verde river basin, southern minas gerais

A hydropedological approach to a mountainous Clayey Humic Dystrudept in the Mantiqueira Range, southeastern Brazil

Land-use effect on hydropedology in a mountainous region of Southeastern Brazil

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