QUALITY OF SURFACE WATER IN THE AGRICULTURAL DISTRICT LONJA FIELD (CROATIA)
| Autor: | Ankica Senta Marić, Ivan Šimunić, Irena Ciglenečki, Minkina Tatiana, Palma Orlović-Leko, Vilim Filipović |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: |
010504 meteorology & atmospheric sciences
Field (physics) business.industry media_common.quotation_subject surface water quality agricultural area physicochemical indicators dissolved organic matter Soil Science Forestry Plant Science 010501 environmental sciences 01 natural sciences Environmental protection Agriculture Environmental science Quality (business) business Agronomy and Crop Science Surface water 0105 earth and related environmental sciences Nature and Landscape Conservation Food Science media_common |
| DOI: | 10.17707/agricultforest.63.3.01 |
| Popis: | The objective of this study was to estimate the impact of land use on the surface water quality. Water samples were collected in the main drainage channel, in the agricultural area of Lonja field, Croatia. Lonja field is the largest protected wetland in both Croatia and the entire Danube basin. It extends along the river Sava and the lower course of the river Lonja. Sampling was performed during the spring months in 2015, 2016 and 2017. Investigation was done through the measurements of physicochemical indicators: pH value, biochemical oxygen demand (BOD), concentration of oxygen, nitrate, phosphate, trace metals (Zn, Pb and Cd), dissolved organic carbon (DOC), and surface active fraction of DOC. The obtained results were compared with those of the Lonja and Sava rivers. The significant higher concentrations of DOC (up to about 13 mg C dm-3) have been observed in the water from main drainage channel. It is known that, high DOC concentrations in surface waters have negative effects on the water quality and water habitats. |
| Databáze: | OpenAIRE |
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