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Table 7

Results of Kruskal-Wallis H-test used for testing statistical differences in environmental variables among groups of water reservoirs resulting from CCA analysis; abbreviations of hydromorphological and geographical parameters are those used in Table 4; ** p< 0.01, * p< 0.05, ns p ≥ 0.05.

p p p
alt ** forest ns NO3-N ns

area ns pH ns TN ns

volume ns O2 ns TP **

mean-depth ** t ns PO4-P ns

flow ns cond * alk *

ret-time ns BOD ** ch-a **

urban * COD ns transp **

agri ns NH4-N ns

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