Seasonal contributions of nutrients from small urban and agricultural watersheds in northern Poland.


:Diffuse sources of pollution like agricultural or urban runoff are important factors in determining the quality of surface waters, although they are more difficult to monitor than point sources. The objective of our study was to verify assumptions that the inflow from agricultural nutrient sources is higher than from urbanized ones. It has been done by comparing the nutrients and organic matter concentrations and loads for three small streams in northern Poland (Pomerania Region). Two streams flowing through agricultural catchments and an urban stream flowing through the city of Gdansk were analysed. Concentrations of nutrients: N-NO 3 - N-NH 4 + , P-PO 4 3 - , total phosphorus, total nitrogen and COD were measured 1-3 times per month in the period from July 2017 to December 2018 in agricultural watersheds and from October 2016 to March 2018 for an urban stream. Seasonal changes in concentrations were analysed with descriptive statistics tools. Principal Component Analysis (PCA) was used to point out the most significant factors determining variations in nutrients and organic matter concentrations with respect to different seasons. The factors included a number of characteristics regarding the catchment and streams: total catchment area, stream length, watershed form ratio, stream slope, flow rate and land use with respect to paved areas, agricultural areas and green areas (parks, forests, meadows and pastures). Although concentrations of nitrogen compounds were higher in streams flowing through agricultural areas, our study showed that total concentrations of phosphorus were higher in the urban stream, especially in summer. In agricultural areas the summer concentrations of nutrients were not high, which was probably due to dense vegetation. The correlation between P-PO 4 3 - concentration and size of agricultural area in the catchment was observed in winter when no vegetation field cover exists. Our study shows an urgent need to monitor the nutrient loads carried with urban streams especially if discharged into receivers prone to eutrophication.






Matej-Lukowicz K,Wojciechowska E,Nawrot N,Dzierzbicka-Głowacka LA




Has Abstract


2020-02-06 00:00:00












  • Fishing for vaccines against Vibrio cholerae using in silico pan-proteomic reverse vaccinology approach.

    abstract:Background:Cholera, an acute enteric infection, is a serious health challenge in both the underdeveloped and the developing world. It is caused by Vibrio cholerae after ingestion of fecal contaminated food or water. Cholera outbreaks have recently been observed in regions facing natural calamities (i.e., earthquake in ...


    pub_type: 杂志文章


    authors: Rashid MI,Rehman S,Ali A,Andleeb S

    更新日期:2019-06-19 00:00:00

  • Conceptual and empirical advances in Neotropical biodiversity research.

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    pub_type: 杂志文章


    authors: Antonelli A,Ariza M,Albert J,Andermann T,Azevedo J,Bacon C,Faurby S,Guedes T,Hoorn C,Lohmann LG,Matos-Maraví P,Ritter CD,Sanmartín I,Silvestro D,Tejedor M,Ter Steege H,Tuomisto H,Werneck FP,Zizka A,Edwards SV

    更新日期:2018-10-04 00:00:00

  • A horizon scan of future threats and opportunities for pollinators and pollination.

    abstract::Background. Pollinators, which provide the agriculturally and ecologically essential service of pollination, are under threat at a global scale. Habitat loss and homogenisation, pesticides, parasites and pathogens, invasive species, and climate change have been identified as past and current threats to pollinators. Ac...


    pub_type: 杂志文章


    authors: Brown MJ,Dicks LV,Paxton RJ,Baldock KC,Barron AB,Chauzat MP,Freitas BM,Goulson D,Jepsen S,Kremen C,Li J,Neumann P,Pattemore DE,Potts SG,Schweiger O,Seymour CL,Stout JC

    更新日期:2016-08-09 00:00:00

  • Dual mechanism of TRKB activation by anandamide through CB1 and TRPV1 receptors.

    abstract:Background:Administration of anandamide (AEA) or 2-arachidonoylglycerol (2AG) induces CB1 coupling and activation of TRKB receptors, regulating the neuronal migration and maturation in the developing cortex. However, at higher concentrations AEA also engages vanilloid receptor TRPV1, usually with opposed consequences o...


    pub_type: 杂志文章


    authors: Diniz CRAF,Biojone C,Joca SRL,Rantamäki T,Castrén E,Guimarães FS,Casarotto PC

    更新日期:2019-02-21 00:00:00

  • Genome-wide identification and characterization of Dof transcription factors in eggplant (Solanum melongena L.).

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    pub_type: 杂志文章


    authors: Wei Q,Wang W,Hu T,Hu H,Mao W,Zhu Q,Bao C

    更新日期:2018-03-06 00:00:00

  • Refining amino acid hydrophobicity for dynamics simulation of membrane proteins.

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    pub_type: 杂志文章


    authors: Hills RD Jr

    更新日期:2018-01-10 00:00:00

  • The right thalamus may play an important role in anesthesia-awakening regulation in frogs.

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    pub_type: 杂志文章


    authors: Fan Y,Yue X,Xue F,Brauth SE,Tang Y,Fang G

    更新日期:2018-03-15 00:00:00

  • Spatial structure arising from neighbour-dependent bias in collective cell movement.

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    pub_type: 杂志文章


    authors: Binny RN,Haridas P,James A,Law R,Simpson MJ,Plank MJ

    更新日期:2016-02-15 00:00:00

  • Comparing the catch composition, profitability and discard survival from different trammel net designs targeting common spiny lobster (Palinurus elephas) in a Mediterranean fishery.

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    pub_type: 杂志文章


    authors: Catanese G,Hinz H,Gil MDM,Palmer M,Breen M,Mira A,Pastor E,Grau A,Campos-Candela A,Koleva E,Grau AM,Morales-Nin B

    更新日期:2018-05-17 00:00:00

  • Genome-wide characterization and expression analysis of soybean trihelix gene family.

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    pub_type: 杂志文章


    authors: Liu W,Zhang Y,Li W,Lin Y,Wang C,Xu R,Zhang L

    更新日期:2020-03-13 00:00:00

  • Immunofluorescence characterization of spinal cord dorsal horn microglia and astrocytes in horses.

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    pub_type: 杂志文章


    authors: Meneses CS,Müller HY,Herzberg DE,Uberti B,Bustamante HA,Werner MP

    更新日期:2017-10-27 00:00:00

  • Impact of exposure to tobacco smoke, arsenic, and phthalates on locally advanced cervical cancer treatment-preliminary results.

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    pub_type: 杂志文章


    authors: Neamtiu IA,Bloom MS,Dumitrascu I,Roba CA,Pop C,Ordeanu C,Balacescu O,Gurzau ES

    更新日期:2016-09-08 00:00:00

  • High prevalence of Lynx rufus gammaherpesvirus 1 in wild Vermont bobcats.

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    pub_type: 杂志文章


    authors: Loisel DA,Troyer RM,VandeWoude S

    更新日期:2018-06-22 00:00:00

  • Nomogram to predict the prognosis of parotid gland mucoepidermoid carcinoma: a population-based study of 1306 cases.

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    pub_type: 杂志文章


    authors: Sun J,Sun Y,Yang F,Zhou Q,Liu W,Cheng Y,Wu X,Chen T,Li R,Huang B,Att W,Yu Y,Bi W

    更新日期:2019-07-01 00:00:00

  • Analysis of the in planta transcriptome expressed by the corn pathogen Pantoea stewartii subsp. stewartii via RNA-Seq.

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    pub_type: 杂志文章


    authors: Packard H,Kernell Burke A,Jensen RV,Stevens AM

    更新日期:2017-04-27 00:00:00

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    pub_type: 杂志文章


    authors: Hassall C

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    authors: Sanchini A,Dematheis F,Semmler T,Lewin A

    更新日期:2017-01-03 00:00:00

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    pub_type: 杂志文章


    authors: Seeber PA,Quintard B,Sicks F,Dehnhard M,Greenwood AD,Franz M

    更新日期:2018-08-22 00:00:00

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    authors: Charest-Morin X,Bachelard H,Jean M,Marceau F

    更新日期:2017-01-18 00:00:00

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    authors: Kimotho RN,Baillo EH,Zhang Z

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    pub_type: 杂志文章


    authors: Bermudez Sanchez S,Pilla R,Sarawichitr B,Gramenzi A,Marsilio F,Steiner JM,Lidbury JA,Woods GRT,German AJ,Suchodolski JS

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    pub_type: 杂志文章


    authors: Khadr A,Wang GL,Wang YH,Zhang RR,Wang XR,Xu ZS,Tian YS,Xiong AS

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    pub_type: 杂志文章


    authors: Rahman S,Schmidt D,Hughes JM

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    pub_type: 杂志文章


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    更新日期:2018-09-12 00:00:00

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    pub_type: 杂志文章


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    更新日期:2016-05-24 00:00:00

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    pub_type: 杂志文章


    authors: Fadli N,Mohd Nor SA,Othman AS,Sofyan H,Muchlisin ZA

    更新日期:2020-08-05 00:00:00

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    pub_type: 杂志文章


    authors: Kammerer CF,Deutsch M,Lungmus JK,Angielczyk KD

    更新日期:2020-10-07 00:00:00