Driving variables for eutrophication in lakes of Hanoi by data-driven technique
| Autor: | Hien Thi Thu Nguyen, Thu‐Huong Thi Hoang, Anh Dieu Van |
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| Rok vydání: | 2017 |
| Předmět: |
0106 biological sciences
Hydrology Environmental Engineering 010604 marine biology & hydrobiology 010501 environmental sciences Management Monitoring Policy and Law 01 natural sciences Pollution Algal bloom Nutrient Environmental science Water quality Trix Eutrophication 0105 earth and related environmental sciences Water Science and Technology Trophic level |
| Zdroj: | Water and Environment Journal. 31:176-183 |
| ISSN: | 1747-6585 |
| DOI: | 10.1111/wej.12231 |
| Popis: | To investigate eutrophication in 31 freshwater lakes in Hanoi, Vietnam, water quality and Chlorophyll-a content were monitored to calculate trophic indices. Twelve of the 15 urban lakes investigated were eutrophic, of which five were hypertrophic, while only seven of the 16 suburban lakes were eutrophic. The Trophic Index (TRIX) was the best predictive index to identify the eutrophication level of the lakes. Classification trees (CTs) were applied to study the trophic status of lakes and identify the driving variables. The results demonstrated that eutrophication in the lakes of Hanoi was driven by nutrients and organic enrichment, as well as by inappropriate management such as unplanned embankment and water uses. DIN, BOD, lake size and embankment were the key parameters controlling eutrophication in the lakes of Hanoi. |
| Databáze: | OpenAIRE |
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