Evaluation of Water Quality in Ialomita River Basin in Relationship with Land Cover Patterns
| Autor: | Nicolae Petrescu, Danut Tanislav, Petre Bretcan, Stefania Iordache, Daniel Dunea, Elena Tuchiu, Razvan Teodorescu, Gheorghe Şerban |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
lcsh:Hydraulic engineering
Soil and Water Assessment Tool Geography Planning and Development Drainage basin chemistry.chemical_element factor analysis Land cover Aquatic Science Biochemistry lcsh:Water supply for domestic and industrial purposes land cover lcsh:TC1-978 nutrients SWAT model expected mean concentration Water Science and Technology Hydrology lcsh:TD201-500 Suspended solids geography geography.geographical_feature_category Discharge Phosphorus physicochemical parameters land use chemistry Environmental science Water quality |
| Zdroj: | Water Volume 12 Issue 3 Water, Vol 12, Iss 3, p 735 (2020) |
| ISSN: | 2073-4441 |
| DOI: | 10.3390/w12030735 |
| Popis: | The paper reviews the state of water quality in Ialomita River Basin (IRB), Romania, between 2007 and 2018 using the land use/land cover and basin-specific conditions effects on sediments and nutrients load. On-site monitoring was performed in two control sections of the Ialomita River, one in the upper part of the basin (near Targoviste city) and the second near the discharge into the Danube (downstream of Tandarei town). The statistical averages of water parameters for 10 years&rsquo monitoring in the control section that is close to the Ialomita River discharge in Danube were pH = 7.60 (range: 6.41&ndash 8.40), NH4-N = 1.20 mg/L (0.02&ndash 14.87), alkalinity = 4.12 mmol/L (1.34&ndash 6.27), NO3-N = 2.60 mg/L (0.08&ndash 17.30), PO4-P = 0.09 mg/L (0&ndash 0,31), dissolved oxygen (DO) = 8.87 mg/L (2.72&ndash 15.96), BOD5 = 5.50 mg/L (0.01&ndash 74.71), suspended solids (TSS) = 508.32 mg/L (15.2&ndash 4457), total dissolved salts (TDS) = 733.69 mg/L (455.2&ndash 1053), and river discharge = 38.60 m3/s (8.22&ndash 165). Expected mean concentration and soil and water assessment tool (SWAT) modeling have been employed in the GIS environment to extend the approach to large spatial patterns within the basin. The estimated average specific emission on the total area for nitrogen was 3.2 kg N/ha, and 0.3 kg P/ha for phosphorus highly influenced by the agricultural activities. The results are useful to raise awareness regarding water-quality degradation and the need to stop and even reverse such trends for local and national sustainable development. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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