Groundwater flow model of the Pipiripau watershed, Federal District of Brazil

Gonçalves, Tatiana Diniz; Fischer, Thomas; Gräbe, Agnes; Kolditz, Olaf; Weiß, Holger

doi:10.1007/s12665-013-2400-5

Cited by 10 publications

(4 citation statements)

References 17 publications

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“…we infer that the water supply is largely dependent on rainfall as interflow rather than water table percolation (Arno et al, 1998;Jeelani et al, 2010;Goncalves et al, 2013). to indigenous geology and from also anthropogenic contamination due mainly to the absence of maintenance (Kim et al, 1977;Yun and Jeong, 1983;Jeong et al, 2002;Kim et al, 2008).…”

Section: Data Collectionmentioning

confidence: 90%

Status of Community Drinking Water in Korea and Implications for Appropriate Management

Lee¹,

Park²,

Kim³

et al. 2013

Journal of Soil and Groundwater Environment

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Community drinking water (CDW), mostly naturally flowing groundwater, plays important roles in supplying drinking water for urban and rural residents in Korea. Over 1,600 CDW facilities are distributed throughout the country, many of them situated in the outskirts of metropolitan cities. A large proportion of Korean people have become dependent on CDW for drinking due to a distrust of piped water's quality and a strong belief in the special medicinal effects of some CDWs. However, administrative and official management and the control of CDW facilities have been inadequate when compared with the strict examination and control of commercial bottled water, which is physically treated groundwater from deep bedrock aquifers. In this study, even though signs of anthropogenic contamination were not generally found, the tested chemical compositions of selected CDWs featured high enrichment of some constituents including Ca, Mg, Na, and HCO 3 with natural origins such as water-rock interactions. Careless consumption of particular CDWs, which has no scientific basis, will not guarantee health improvement. Consequently, more intensive management of CDW facilities and a long-term interdisciplinary examination of the health effects of CDWs are needed to effectively protect people's health.

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Section: Data Collectionmentioning

confidence: 90%

Status of Community Drinking Water in Korea and Implications for Appropriate Management

Lee¹,

Park²,

Kim³

et al. 2013

Journal of Soil and Groundwater Environment

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“…Assessment results, especially in terms of sediment retention, may not appropriately reflect the problems of degraded water resources that have been identified in other reports/studies (e.g. CAESB, Environmental Sanitation Company of the Federal District 2001; Felizola et al 2001;Fortes et al 2007;Goncalves et al 2013;Lorz et al 2012a,b). In the case study region, water resources might be threatened more by LULCC changes that cannot be detected by commonly available data sets because of their small spatial extent or temporal occurrence which makes their mapping challenging.…”

Section: Lulcc Scenariosmentioning

confidence: 90%

“…The Goncalves et al (2013) pointed out that in the coming years, population growth and excessive use of pesticides and irrigation practices may (further) reduce the amount and quality of water resources of the case study region. With respect to question three, the scenario results can therefore play an important role in the IWRM to inform people on the effects of LULCC, to initiate discussion among land managers in participatory processes, and to find best-practice land use patterns with accepted trade-offs.…”

Section: Lulcc Scenariosmentioning

confidence: 99%

Assessing hydrological and provisioning ecosystem services in a case study in Western Central Brazil

et al. 2014

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Introduction: Current land use in the Federal District, Western Central Brazil, causes problems related to the water supply which are linked to the regulation of ecosystem services (ES). In scope of an Integrated Water Resources Management concept, we further developed the web-based planning support tool GISCAME for the Pipiripau river basin case study. Methods: We introduced analyses on ecosystem potentials in the raster-based tool to assess, in a spatially explicit manner, the scenario impact on water purification, sediment retention, water retention, and provision of food and fodder in order to identify potential pathways for conserving water resources. To demonstrate the method, we assess ES depending on a number of land use/land cover change (LULCC) scenarios. Results: We found that a considerable increase of water purification and sediment retention is difficult to achieve with realistic small scale LULCC, mainly because in areas with a low potential to provide hydrological ES and thus with a high demand for sustainable land use, such as native Savanna (Cerrado) and natural forests (Mata), favorable land uses were often already existing. We observed synergies in the response of regulating hydrological ES to LULCC but at the same time also trade-offs with provision of food and fodder. Conclusions: Our findings suggest that further degradation and loss of Cerrado and Mata must be avoided and their restoration should be promoted in order to safeguard water resources. We suggest that restoration measures should be focused on arable land located at steep slopes near surface waters to effectively increase hydrological ES through the marginal reduction of provision services.

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“…Simulated and measured hydraulic heads fit better in the fine soil plain area, with an error between 0.2 and 1.5 m. The error is mainly caused by heterogeneity and anisotropy in the lithology. Leakage flow in the aquitard increases the vertical flow to a certain degree 23 . Table 2 shows calculation errors for the six typical boreholes (observation wells), which are evenly distributed along the profile (Figure 1).…”

Section: Groundwater Level Calibrationmentioning

confidence: 99%

Calibration of Two-Dimensional Variably Saturated Numerical Model for Groundwater Flow in Arid Inland Basin, China

Gu¹,

Jing-li²,

Cui³

et al. 2017

Current Science

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Groundwater flow model of the Pipiripau watershed, Federal District of Brazil

Cited by 10 publications

References 17 publications

Status of Community Drinking Water in Korea and Implications for Appropriate Management

Status of Community Drinking Water in Korea and Implications for Appropriate Management

Assessing hydrological and provisioning ecosystem services in a case study in Western Central Brazil

Calibration of Two-Dimensional Variably Saturated Numerical Model for Groundwater Flow in Arid Inland Basin, China

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