Dissolved organic carbon concentrations in drainage waters and soils from agricultural ecosystems

• Autorzy: Skowron P. , Skowrońska M.

Warianty tytułu

PL

Zawartość rozpuszczalnego węgla organicznego w wodach drenarskich i glebach z ekosystemów rolniczych

• Języki publikacji: EN

Abstrakty

EN

The two-year field and laboratory experiments were carried out to investigate the influence of soil management, land use climate conditions and soil properties on dissolved organic carbon (DOC) concentrations in drainage waters and soils. In the field experiment drainage waters were sampled from 12 drainage watersheds (in four research areas characterized by different soil properties each with three research sites - drainage watersheds were chosen each located in area differing in terms of land use and management practices). In the laboratory study pH values (3.5-7.5) typical for Polish soils were simulated in the soils sampled from the four research areas and DOC concentration was determined. It was found that DOC concentration may increase as the result of FYM an NPK fertilizer application, temperature rise and rainfall (during summer), as well as being depended on the soil properties (percentage of particles with a diameter below 0.02 mm, content of phosphorus and pH value). However the influence of individual factors on DOC concentration might be difficult to predict under field conditions due to their overlapping.

PL

Celem przeprowadzonego dwuletniego doświadczenia polowego i laboratoryjnego było zbadanie wpływu użytkowania gleby, użytkowania gruntów, warunków klimatycznych i właściwości gleb na zawartość rozpuszczalnego węgla organicznego (DOC) w wodach drenarskich i glebach. W doświadczeniu polowym pobierano wody drenarskie z 12 działów drenarskich (w każdym z czterech obszarów badawczych, charakteryzujących się zróżnicowanymi właściwościami glebowymi, wytypowano po trzy obiekty badawcze - działy drenarskie, zlokalizowane na zróżnicowanych pod względem użytkowaniu gruntów i zabiegów agrotechnicznych terenach). W doświadczeniu laboratoryjnym w glebach pobranych z czterech obszarów badawczych symulowano wartości pH typowe dla polskich gleb i oznaczano zawartość DOC. Stwierdzono, że zawartość DOC może się zwiększać w wyniku stosowania obornika i nawozów NPK, wzrostu temperatury i opadów (podczas lata), jak również jest uzależniona od właściwości gleby (udziału frakcji o średnicy 0,02 mm, zawartości fosforu oraz pH). Jednak w warunkach polowych wpływ poszczególnych czynników na zawartość DOC może być trudny do przewidzenia z uwagi na ich nakładanie się.

Słowa kluczowe

EN

DOC; drainage waters; soil management; soil properties

PL

DOC; rozpuszczalny węgiel organiczny; wody drenarskie; użytkowanie gleby; właściwości gleby

• Wydawca: Towarzystwo Chemii i Inżynierii Ekologicznej
• Czasopismo: Ecological Chemistry and Engineering. A
• Rocznik: 2009
• Tom: Vol. 16, nr 1-2
• Strony: 61--69
• Opis fizyczny: Bibliogr. 20 poz., rys., tab.

Twórcy

autor

Skowron P.

autor

Skowrońska M.

• Department of Agricultural and Environmental Chemistry, University of Life Sciences in Lublin, ul. Akademicka 15, 20--950 Lublin, tel. [phone], fax [phone],

Bibliografia

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