| Water category: | Lake |
| Pressure categories |
Not applicable
|
| Pressure detail |
|
| Specific Index |
Phosphorus (and nitrogen), chlorophyll a, transparency |
| Brief text description |
Classification scheme sets boundary values for phosphorus, chlorophyll a and transparency (secchi depth). |
| Long text description |
Lake classification scheme based on expert evaluation of lake data. Classification defines boundary values of total phosphorus, chlorophyll and transparency (Secchi depth) between trophic classes from ultra-oligotrophic to hypereutrophic. The classification is based on data from a large number of lake types from regions across the globe, althoughthere was a pre-dominance of large, deep lakes in the original dataset. The classification scheme proposes both a fixed boudary system and an open boundary system. Furthermore, the classification scheme provides illustrative probability distribution curves for different trophic categories based on total phosphorus. |
| History of development |
|
| References |
OECD. 1982. Eutrophication of Water: Monitoring, Assessment and Control.
Organisation for Economic Cooperation and Development, Paris. |
| Geographic region (GIG) - L |
|
| Ecoregion - LR |
|
| Country |
|
| Geographical location of source data |
Multi-national |
| Reference conditions |
Not considered |
| Development |
Existing |
| Uncertainty |
Considered |
| Link to document store |
No |
| BMW Toolbox |
No |
| Entry status |
|