“One Out–All Out” Principle in the Water Framework Directive 2000 - A New Approach with Fuzzy Method on an Example of Greek Lakes
Author
Latinopoulos, Dionissis
Spiliotis, Mike
Ntislidou, Chrysoula
Kagalou, Ifigenia
Kaglou
Bobori, Dimitra
Lazaridou, Maria
Spatial coverage
Λίμνη Λυσιμαχεία
Λίμνη Οζερός
Λίμνη Βεγορίτιδα
Λίμνη Βόλβη
Λίμνη Υλίκη
Λίμνη Δοϊράνη
Publication Date
2021
Abstract
The “One Out–All Out” (OOAO) principle imposed by the WFD selects the worst ecological status assessed by different biological quality elements (BQEs). Since it is a precautionary rule that can lead to problems of underestimation of the overall status, its amendment has been a matter of debate for WFD 20+. The use of fuzzy methods that express the functional relationships between variables in ecology and management has been gaining more ground recently. Here is attempted the inclusion of a fuzzy regression among the frequently monitored BQE (phytoplankton) and the outcome of OOAO application in six Greek lakes. The latter was determined by the comparison of four BQE indices in order to assess the extent to which BQEs might underpin the optimal/actual qualitative classification of a waterbody. This approach encompasses the uncertainty and the possibility to broaden the acceptable final EQR based on the character and status of each lake. We concluded that the fuzzy OOAO is an approach that seems to allow a better understanding of the WFD implementation and case-specific evaluation, including the uncertainty in classification as an asset. Moreover, it offers a deeper understanding through self-learning processes based on the existing datasets.
Description
Latinopoulos, D., M. Spiliotis, C. Ntislidou, I. Kagalou, D. Bobori, V. Tsiaoussi, and M. Lazaridou. 2021. “One Out–All Out” Principle in the Water Framework Directive 2000—A New Approach with Fuzzy Method on an Example of Greek Lakes. Water 2021, 13, 1776. https://doi.org/10.3390/w13131776
Project
Λειτουργία εθνικού δικτύου παρακολούθησης των υδάτων των λιμνών της Ελλάδας (Οδηγία 2000/60/ΕΚ)
Type
Scientific journal article
Subject(s)
Υγρότοποι
Λίμνες
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Project