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Table 8

Results of Kruskal-Wallis H-test showing the seasonal differences in environmental variables in 5 groups of reservoirs resulting from CCA analyses; *** p< 0.001, ** p< 0.01, * p< 0.05, ns p ≥ 0.05.

group 1 group 2 group 3 group 4 group 5
O2 ∗∗∗ ∗∗ ∗∗∗ ∗∗ ns

BOD ns ns ns ns ns

COD ns ∗∗ ns ns

pH ns ns ns ns

t ∗∗∗ ∗∗∗ ∗∗∗ ∗∗ ns

cond ns ns ns ns ns

NH4 -N ns ns ns ns ns

NO3 -N ∗∗ ns ns

TP ns ns ns ns ns

TN ns ns ns ns ns

alk ns ns ns ns ns

PO4 -P ns ns ns ns ns

ch-a ns ns ns ns ns

transp ns ns ns ∗∗ ns

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