Changes of nitrate concentrations in surface waters influenced by land use in the crystalline complex of the Czech Republic

Kvítek, Tomáš; Žlábek, P.; Bystřický, Václav; Fučík, Petr; Lexa, M.; Gergel, J.; Novák, Pavel; Ondr, Pavel

doi:10.1016/j.pce.2008.07.003

Cited by 44 publications

(38 citation statements)

References 36 publications

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“…The European Union has implemented a procedure that intends to restore good quality water resources by 2015 (Directive 2000/60/EC), and the Nitrate Directive (91/676/EC) included a law designed to control nitrogen pollution by limiting nitrate concentrations to <50 mg L −1 in water. Land use is a key factor in nitrate pollution (Kopáček et al, 2013a;Kvítek et al, 2009). Indeed, several studies have shown that leaching is reduced in grasslands (Kopáček et al, 2013a;Kvítek et al, 2009) because of strong coupling between the C and N cycles, associated with plant autotrophy and intense microbial biomass turnover under permanent vegetation (Soussana and Lemaire, 2014).…”

Section: Introductionmentioning

confidence: 99%

How much do sod-based rotations reduce nitrate leaching in a cereal cropping system?

Kunrath

Berranger²,

Charrier³

et al. 2015

Agricultural Water Management

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Section: Introductionmentioning

confidence: 99%

How much do sod-based rotations reduce nitrate leaching in a cereal cropping system?

Kunrath

Berranger²,

Charrier³

et al. 2015

Agricultural Water Management

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“…Consequently, fertilizer application with poorly managed irrigated systems increases NO 3 -concentrations in the groundwater. The study conducted by Jalali (2009) in Razan, Hamadan, Iran; Kvítek et al (2009) in Czech Republic, also support the idea that changes in land use and management practices can have a considerable impact on the water quality parameters. Hence, throughout the study area, responsible use of fertilizers is needed to limit further increase of NO 3 -concentration.…”

Section: Resultsmentioning

confidence: 53%

“…The chemical composition of groundwater is controlled by many factors that include composition of precipitation, geological structure and mineralogy of the watersheds and aquifers, and geological processes within the aquifer (Andre et al 2005). Among the sources of contamination, agriculture has both direct and indirect effects on groundwater chemistry (Bohlke 2002;Jalali and Kolahchi 2008;Kvítek et al 2009). Despite the importance of groundwater in Iran, quality assessment of groundwater has received little attention, and efforts to use hydrochemistry data to solve particular problems are even fewer or nonexistent.…”

Section: Introductionmentioning

confidence: 99%

“…Different multivariate statistical techniques, such as cluster analysis (CA), principal component analysis (PCA), factor analysis (FA), and discriminant analysis (DA), are widely applied to evaluate surface and groundwater quality through data reduction and classification (Singh et al 2005;Papatheodorou et al 2006;Shrestha and Kazama 2007;Omo-Irabor et al 2008;Kvítek et al 2009). These techniques can be used to obtain relationships between parameters and sampling sites, to identify the important factors and sources influencing groundwater quality and to suggest useful tools for both management of water resources and monitoring of groundwater quality.…”

Section: Introductionmentioning

confidence: 99%

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Assessment of groundwater quality using multivariate statistical techniques in Hashtgerd Plain, Iran

Nosrati

Eeckhaut

2011

Environ Earth Sci

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Multivariate statistical techniques, such as cluster analysis (CA), factor analysis (FA), principal component analysis (PCA), and discriminant analysis (DA), were applied for the evaluation of variations and the interpretation of a large complex groundwater quality data set of the Hashtgerd Plain. In view of this, 13 parameters were measured in groundwater of 26 different wells for two periods. Hierarchical CA grouped the 26 sampling sites into two clusters based on the similarity of groundwater quality characteristics. FA based on PCA, was applied to the data sets of the two different groups obtained from CA, and resulted in three and five effective factors explaining 79.56 and 81.57% of the total variance in groundwater quality data sets of the two clusters, respectively. The main factors obtained from FA indicate that the parameters influencing groundwater quality are mainly related to natural (dissolution of soil and rock), point source (domestic wastewater) and non-point source pollution (agriculture and orchard practices) in the sampling sites of Hashtgerd Plain. DA provided an important data reduction as it uses only three parameters, i.e., electrical conductivity (EC), magnesium (Mg 2? ) and pH, affording more than 98% correct assignations, to discriminate between the two clusters of groundwater wells in the plain. Overall, the results of this study present the effectiveness of the combined use of multivariate statistical techniques for interpretation and reduction of a large data set and for identification of sources for effective groundwater quality management.

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“…In the studied area, these soils (at high or very high risk of accelerated infi ltration) are localized in 35% of the territory. They are not suitable for use as arable land and should be transformed into the category of permanent grass covers (Fučík et al, 2008;Fučík et al, 2010;Kvítek et al, 2009). …”

Section: Analysis Of Infi Ltration Vulnerable Soils In the Territory mentioning

confidence: 99%

The Location and Extent of Systematic Drainage in Relation to Land Use in the Past and at Present and in Relation to Soil Vulnerability to Accelerater Infiltration in the Protected Landscape Area Železné Hory

Karásek

Tlapáková

Podhrázská

2015

Acta Univ. Agric. Silvic. Mendelianae Brun.

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This study searched for associations between the extent of hydromelioration systems and the land use (in the past and at present), degree of nature conservation, and infi ltration of water through soil profi le in the Protected Landscape Area (PLA) Železné hory. According to the available evidence, 34.6% of arable land and 32.1% of permanent grasslands in this area are drained by the drainage systems. Analysis of the original design documentations of drainage structures indicate, that the extent of drained areas can actually be even higher. The hydromelioration systems were built namely in the second half of the 20 th century. The drainage also aff ected alluvial meadows, wetlands, and ecologically valuable stations. A er establishment of PLA Železné hory in 1991, the protected area was divided into four zones according to their signifi cance and protection regime. This study has revealed the presence of areas drained by systematic drainage systems (101 ha of grasslands) even in the zones of highest landscape protection degree (1 st and 2 nd protection zones). The inadequately executed drainage systems should be eliminated and the character of the land should be brought closer to its natural conditions. On the model part of the PLA we also performed a study of historical changes in the landscape in three time horizons (1839, 1950, 2014) to show diff erences in land use before building of drainage, at the time of building, and at present.

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Changes of nitrate concentrations in surface waters influenced by land use in the crystalline complex of the Czech Republic

Cited by 44 publications

References 36 publications

How much do sod-based rotations reduce nitrate leaching in a cereal cropping system?

How much do sod-based rotations reduce nitrate leaching in a cereal cropping system?

Assessment of groundwater quality using multivariate statistical techniques in Hashtgerd Plain, Iran

The Location and Extent of Systematic Drainage in Relation to Land Use in the Past and at Present and in Relation to Soil Vulnerability to Accelerater Infiltration in the Protected Landscape Area Železné Hory

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