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Table 4 Pearson correlation coefficient (r) between land use categories and water quality parameters

From: Characterizing and explaining spatio-temporal variation of water quality in a highly disturbed river by multi-statistical techniques

Scale Water quality r 1 (between land use and pollutant concentration) r 2 (between land use and Cv of pollutant concentration)
Urban land Farmland Forest Water Urban land Farmland Forest Water
Sub-catchment COD 0.89** 0.50* −0.63** −0.51* −0.45 −0.60* 0.64** 0.44
  NH3-N 0.77** 0.52* −0.65** −0.26 −0.36 0.10 −0.02 −0.01
100 m buffer COD 0.67** 0.58* −0.53* −0.67** −0.37 −0.49 0.56* 0.47
  NH3-N 0.17 0.50* −0.51* −0.48 −0.14 0.009 0.01 0.14
  1. “*” is significant at α ≤ 0.05and “**” is significant at α ≤ 0.01