The Scientific World Journal / 2013 / Article / Tab 4

Research Article

Evaluation of the Impacts of Land Use on Water Quality: A Case Study in The Chaohu Lake Basin

Table 4

The correlation coefficients between different land uses and water quality variables at the scale of the whole watershed.

Variables (%)ln (TN)ln (TP)ln (CODmn) ln (NH3–N) ln (DO)
coef.coef.coef.coef.coef.

Cultivated land−0.46−0.42−0.080.310.06
Forest land −4.11**−9.59***−5.47***−9.26***0.31
Grassland−6.52***−7.87***−2.93***−8.83***0.54
Water area−0.300.260.29*1.22**0.0029
Built-up area0.861.54**0.70**2.60***−0.27*
Constant1.20***−1.44***1.69***−1.04***2.08***
-squared0.490.750.800.690.36

, ** , * .

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