| Title: | Influence of anthropogenic loads on surface water status: A case study in Lithuania |
| Authors: | Česonienė, L., D. Šileikienė, V. Marozas and L. Čiteikė |
| Year: | 2021 |
| Journal: | Sustainability |
| Volume (Issue): | 13(8) |
| Pages: | |
| Article ID: | 4341 |
| DOI: | 10.3390/su13084341 |
| URL (non-DOI journals): | |
| Model: | SWAT |
| Broad Application Category: | pollutant only |
| Primary Application Category: | nutrient cycling/loss and transport |
| Secondary Application Category: | critical source area assessment |
| Watershed Description: | Drainage areas for 26 lakes and 10 ponds, located in different parts of Lithuania. |
| Calibration Summary: | |
| Validation Summary: | |
| General Comments: | |
| Abstract: | Twenty-six water bodies and 10 ponds were selected for this research. Anthropogenic loads were assessed according to pollution sources in individual water catchment basins. It was determined that 50% of the tested water bodies had Ntotal values that did not correspond to the good and very good ecological status classes, and 20% of the tested water bodies had Ptotal values that did not correspond to the good and very good ecological status classes. The lake basins and ponds received the largest amounts of pollution from agricultural sources with total nitrogen at 1554.13 t/year and phosphorus at 1.94 t/year, and from meadows and pastures with total nitrogen at 9.50 t/year and phosphorus at 0.20 t/year. The highest annual load of total nitrogen for lake basins on average per year was from agricultural pollution from arable land (98.85%), and the highest total phosphorus load was also from agricultural pollution from arable land (60%). |
| Language: | English |
| Keywords: | pollution; ecological status indicators; water quality |