Quantitative and qualitative assessment of agricultural water resources under variable climatic conditions of Silesian Lowlands (Southwest Poland)

Orzepowski, Wojciech; Paruch, Adam M.; Pulikowski, Krzysztof; Kowalczyk, Tomasz; Pokładek, Ryszard

doi:10.1016/j.agwat.2014.02.012

Cited by 17 publications

(19 citation statements)

References 26 publications

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“…and ). These changes are typical phenomena occurring in soils under the climatic conditions of the Eastern Lower Silesia region, showing the highest SWC (quite often close to the values corresponding to FWC) and GWT records measured after spring thaws initiating the growing season (Orzepowski et al ). As temperatures rise and vegetation develops, the water reserves accumulated during the winter period are successively depleted (Seneviratne et al ; Orfánus et al ), reaching their lowest values in the second half of summer and at the end of the growing season.…”

Section: Resultsmentioning

confidence: 85%

“…Some variations in soil moisture observed between the studied soil profiles (Figs. and ) could have been impacted by local factors such as soil structure and GWT fluctuations (Orzepowski et al ), as well as compaction of soil layers during cultivation practices and use of heavy machinery (Fernández‐Gálvez & Barahona ; Alaoui et al ). It has been revealed that the lowest SWC (below 50 mm) occurred in the study sites Lu and Sa with light soils, while the highest SWC (above 550 mm) occurred in heavy soils of the Ry site (Fig.…”

Section: Resultsmentioning

confidence: 99%

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Assessing the applicability of groundwater monitoring data in the modelling of soil water retention characteristics

Orzepowski

Paruch

Kowalczyk

et al. 2018

Water & Environment J

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The present work focuses on an assessment of the applicability of groundwater table (GWT) measures in the modelling of soil water retention characteristics (SWRC) using artificial neural network (ANN) methods. Model development, testing, validation and verification were performed using data collected across two decades from soil profiles at full‐scale research objects located in Southwest Poland. A positive effect was observed between the initial GWT position data and the accuracy of soil water reserve estimation. On the other hand, no significant effects were observed following the implementation of GWT fluctuation data over the entire growing season. The ANN tests that used data of either soil water content or GWT position gave analogous results. This revealed that the easily obtained data (temperature, precipitation and GWT position) are the most accurate modelling parameters. These outcomes can be used to simplify modelling input data/parameters/variables in the practical implementation of the proposed SWRC modelling variants.

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Section: Resultsmentioning

confidence: 85%

Section: Resultsmentioning

confidence: 99%

Assessing the applicability of groundwater monitoring data in the modelling of soil water retention characteristics

Orzepowski

Paruch

Kowalczyk

et al. 2018

Water & Environment J

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“…This assumption, however, is very general and does not provide a real overview on water pollution if an agricultural catchment consists of a number of rural settlements, animal feeding operations and farms of grazing animals, where the use of fertilisers and pesticides might be limited and/or excluded (Orzepowski et al 2014). For such catchments, the dominant water pollution can originate from faecal matter discharged by humans (usually, point source pollution associated with improper treatment and management of wastewater) and animals (typically, spread droppings as well as improper onsite storage of manure and slurry).…”

Section: Introductionmentioning

confidence: 98%

“…For such catchments, the dominant water pollution can originate from faecal matter discharged by humans (usually, point source pollution associated with improper treatment and management of wastewater) and animals (typically, spread droppings as well as improper onsite storage of manure and slurry). In addition, a significant load of nutrients, mainly phosphorus and nitrogen, causes the eutrophication of water bodies, and can also be transported along with faecal matter (Orzepowski et al 2014).…”

Section: Introductionmentioning

confidence: 99%

Application of host-specific genetic markers for microbial source tracking of faecal water contamination in an agricultural catchment

Paruch

Blankenberg

et al. 2015

Acta Agriculturae Scandinavica, Section B — Soil & Plant Sc

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Elevated nutrient concentrations in streams in the Norwegian agricultural landscape may occur due to faecal contamination. Escherichia coli (E. coli) has been used conventionally as an indicator of this contamination; however, it does not indicate the source of faecal origin. This work describes a study undertaken for the first time in Norway on an application of specific host-associated markers for faecal source tracking of water contamination. Real-time quantitative polymerase chain reaction (qPCR) on Bacteroidales host-specific markers was employed for microbial source tracking (MST) to determine the origin(s) of faecal water contamination. Four genetic markers were used: the universal AllBac (Bacteroidales) and the individual specific markers BacH (humans), BacR (ruminants) and Hor-Bac (horses). In addition, a pathogenicity test was carried out to detect the top seven Shiga toxin-producing E. coli (STEC) serogroups. The ratio between each individual marker and the universal one was used to: (1) normalise the markers to the level of AllBac in faeces, (2) determine the relative abundance of each specific marker, (3) develop a contribution profile for faecal water contamination and (4) elucidate the sources of contamination by highlighting the dominant origin(s). The results of the qPCR MST analyses indicated the actual contributions of humans and animals to faecal water contamination. The pathogenicity test revealed that water samples were STEC positive at a low level, which was in proportion to the concentration of the ruminant marker. The outcomes were verified statistically by coupling the findings of major contamination sources with observations in the field regarding local land use (residential or agricultural). Furthermore, clear correlations between the human marker and E. coli counts as well as the ruminant marker and STEC quantity in faecally contaminated water were observed. The results of this study have the potential to help identify sources of pollution for targeted mitigation of nutrient losses.

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“…Excessive amounts of nutrients, mainly nitrogen and phosphorus, get to water primarily from runoff from agricultural lands, untreated or insufficiently treated wastewater effluent and with precipitation. Eutrophication causes changes in ecosystem structure and limits ecosystem services, enabling rapid growth of cyanobacteria, algae and aquatic plants, decrease in fauna and flora species diversity, general water quality detriment, limited use of water resources, increased cost of water treatment [Correll 1998, Rabalais 2002, Moss et al 2011, Orzepowski et al 2014, Withers et al 2014, Dąbrowska et al 2016, Sharpley 2016, Bouwman et al 2017.…”

Section: Introductionmentioning

confidence: 99%

The Implications of Economic Development, Climate Change and European Water Policy on Surface Water Quality Threats

Dąbrowska¹,

Pawęska²,

Dąbek³

et al. 2017

ASP.FC

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Abstract. The paper presents historical background, up-to-date situation and future perspectives for the development of nutrient pollution threats to European surface water quality, as well as the evolution of the approach to water pollution. Utilized agricultural area in European countries is slightly diminishing, however the consumption of mineral fertilisers is steadily increasing. The consumption in Europe in the years 2015-2030 is projected to increase by 10%, and in the world by 20%. Both climate changes leading to the increase of temperature even of ca. 6°C (in comparison to the pre-industrial period) and accelerated soil erosion due to high intensity rainfall cause increased productivity of water ecosystems. Those aspects have to be taken into consideration in water management. Due to legal regulations introduced in the last twenty years, wastewater treatment has been made more effective and population connected to wastewater treatment systems has increased. The improvement has been seen mainly in eastern and southern parts of Europe. After the implementation of Water Framework Directive theories regarding modern water management have been developed, with the aim to increase the ecosystem's capacity and its resilience to climate changes and anthropopressure.

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Quantitative and qualitative assessment of agricultural water resources under variable climatic conditions of Silesian Lowlands (Southwest Poland)

Cited by 17 publications

References 26 publications

Assessing the applicability of groundwater monitoring data in the modelling of soil water retention characteristics

Assessing the applicability of groundwater monitoring data in the modelling of soil water retention characteristics

Application of host-specific genetic markers for microbial source tracking of faecal water contamination in an agricultural catchment

The Implications of Economic Development, Climate Change and European Water Policy on Surface Water Quality Threats

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