Decision support framework for assessment of non-point-source pollution of groundwater in large irrigation projects

Chowdary, V. M.; Rao, N. H.; Sarma, P.B.S.

doi:10.1016/j.agwat.2004.12.013

Cited by 116 publications

(55 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Non-point sources of nitrogen from agricultural practices include fertilizer and manure application (Chowdary et al, 2005). It should be noted that in the study area, the nitrate concentrations in the confined aquifer varied within a larger range from 0.8 to 385.3 mg/L than that in the phreatic aquifer (0.6-147.4 mg/L).…”

Section: Nitrate Contaminationmentioning

confidence: 99%

The role of anthropogenic and natural factors in shaping the geochemical evolution of groundwater in the Subei Lake basin, Ordos energy base, Northwestern China

Liu

Song

Yang

et al. 2015

Science of The Total Environment

119

View full text Add to dashboard Cite

Section: Nitrate Contaminationmentioning

confidence: 99%

The role of anthropogenic and natural factors in shaping the geochemical evolution of groundwater in the Subei Lake basin, Ordos energy base, Northwestern China

Liu

Song

Yang

et al. 2015

Science of The Total Environment

119

View full text Add to dashboard Cite

“…In this context, groundwater pollution with nitrates is a global problem (Goodchild 1998;Joosten et al 1998;Birkinshaw and Ewen 2000;Kyllmar et al 2004;Liu et al 2005). Nitrates are characterised by a high degree of mobility and the ability to infiltrate the phreatic zone as a result of leaching processes (DeSimone and Howes 1998;Chowdary et al 2005). The leaching of nitrates from the vadose zone in cultivated areas demonstrates variation over time and space, conditioned by the quantity and the range of applied fertilisers, irrigation of the area, and types of crops (Sylvester-Bradley et al 2001;Ju et al 2006).…”

Section: Introductionmentioning

confidence: 99%

“…Colombo et al (2015) noted a high correlation between land use, terrain relief, availability of nitrates in soil, intensity of agriculture, and nitrate content in waters of the phreatic zone (Harter et al 2002;Jordan and Smith 2005;Dunn et al 2005;Liu et al 2005). The extensive use of fertilisers is considered a surface source of nitrates washed out into groundwater (Baker 1992;Chowdary et al 2005).…”

Section: Introductionmentioning

confidence: 99%

Nitrates and phosphates in cave waters of Kraków-Częstochowa Upland, southern Poland

Różkowski

Rahmonov

et al. 2017

Environ Sci Pollut Res

View full text Add to dashboard Cite

The paper presents the varied presence of nitrates and phosphates in water from caves located in Częstochowa and Kraków, in urban, strongly anthropogenic conditions, representing the vadose zone of the fissure-karstic-porous massif of Upper Jurassic limestones. Hydrochemical research was carried out by the authors in the Cave on the Stone in Częstochowa in 2012-2015, in caves of the Zakrzówek horst from 1996 to 2002, and in the Dragon's Cave by the research team of J. Motyka in 1995Motyka in -1998. A number of NO 3 and PO 4 measurements were performed in waters sampled at these research sites: 20 measurements each of NO 3 and PO 4 at the Cave on the Stone, 228 of NO 3 and 422 of PO 4 at Zakrzówek, and 19 each of NO 3 and PO 4 at the Dragon's Cave. To assess the quality aspect of N and P compounds in waters from the Cave on the Stone, the results of geochemical modelling were processed using PHREEQC software. In cave waters, the oxidised form of nitrogen NO 3 − predominates; in surface wa- , and the insoluble form CaHPO 4 ; in surface waters, these forms are practically absent. Transformations of water chemistry in 'urban' caves, often centuries old, manifest themselves in, inter alia, the occurrence of multi-ionic waters, including seasonal variations and extremely diversified concentrations, with very high concentrations in subpopulations of NO 3 (0.2-485 mg dm −3 ) and P (0.02-6.87 mg dm −3 ). The common presence of NO 3 in waters of the phreatic zone of the Częstochowa Upland, an area developed in an agricultural direction, is documented by, inter alia, the exploitation of intakes supplying the city of Częstochowa (10-57 mg dm −3 , 2011) and crenological studies from 2008 to 2015 (NO 3 , 2-58 mg dm −3 ), at simultaneously low phosphate concentrations (PO 4 , 0.02-0.24 mg dm −3 ).

show abstract

“…O monitoramento da quantidade e qualidade das águas superfi ciais e subterrâneas tem sido realizado por muitos pesquisadores (SILVA ; A R AÚJO, 2003;CHOWDARY;RAO, 2005;FENG et al, 2005) e instituições, representando um poderoso instrumento que possibilita a avaliação da oferta hídrica, base para decisões de aproveitamento múltiplo e integrado da água, bem como para minimização de impactos ao meio ambiente (COIMBRA, 1991). A prática do monitoramento permite acompanhar as alterações das qualidades dos recursos hídricos a fi m de que possa indicar as medidas necessárias, caso esteja ocorrendo degradação desse bem público, além de determinar sua adequabilidade para o uso proposto (abastecimento público, recreação, dessendentação dos animais, consumo humano ou irrigação).…”

Section: Introductionunclassified

Similaridade da composição hidroquímica das águas freáticas do perímetro irrigado do Baixo Acaraú, Ceará, Brasil

Andrade¹,

Aquino²,

Crisóstomo³

et al. 2010

AGRO@MBIENTE

View full text Add to dashboard Cite

Palavras-chave -Análise de agrupamento. Qualidade de água-classifi cação. Salinidade-água.Abstract -It is constant the risk of contamination in the water table by leachining of salts and toxic waste, such as fertilizer and pesticides. Therefore, it is necessary to understand the dynamics of the quality of waters and devise a plan of sustainable water use consequently a study was conducted at the water table basin located at the Perímetro Irrigado do Baixo Acaraú (DIBAU). The objective of this study was to classify the water quality relative to its hydrochemical composition and to identify the determinants of these qualities samples of water table were collected monthly for 27 months ) contained in these samples were evaluated. The hydrochemical composition was defi ned by the Piper diagram, and the similarity of water quality was performed by multivariable analysis (cluster analysis). The results revealed that waters from the wells analyzed were grouped without presenting any geographical continuity. While sodium and chloride were the elements that determined the four groups obtained. The similarity of water from wells that formed group four resulted in a reduction in the number of wells to be sampled thereby minimizing the costs of monitoring. Although four groups were formed the Piper diagram demonstrated that all the waters were classifi ed as chlorinated sodium. The cluster analysis identifi ed the key elements in each group while the Piper diagram classifi ed the waters without identifying the largest or smallest contribution of a particular element.

show abstract

Decision support framework for assessment of non-point-source pollution of groundwater in large irrigation projects

Cited by 116 publications

References 53 publications

The role of anthropogenic and natural factors in shaping the geochemical evolution of groundwater in the Subei Lake basin, Ordos energy base, Northwestern China

The role of anthropogenic and natural factors in shaping the geochemical evolution of groundwater in the Subei Lake basin, Ordos energy base, Northwestern China

Nitrates and phosphates in cave waters of Kraków-Częstochowa Upland, southern Poland

Similaridade da composição hidroquímica das águas freáticas do perímetro irrigado do Baixo Acaraú, Ceará, Brasil

Contact Info

Product

Resources

About