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Fig. 2


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Principal Component Analysis (PCA) ordination diagrams showing distribution of the reservoirs along the first two axes based on the 23 environmental variables: (A) vectors – environmental variables; abbreviations of hydromorphological and geographical parameters are those used in Table 4; (B) full line – multipurpose reservoirs, dashed line – drinking water-supply reservoirs; abbreviations of reservoirs names are those used in Table 1.

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