Prediction of the Impact of Land Usage Changes on Water Pollution in Public Space Planning with Machine Learning

Table 3

Determination coefficients of regression models of surface water pollution indicators at different spatial scales.

Season	Water quality index	50 m	100 m	200 m	300 m	400 m	500 m	600 m	Watershed
Wet season	TN	0.640	0.704	0.786	0.835	0.839	0.853	0.871	0.902
	NH3-N	0.594	0.674	0.777	0.829	0.839	0.860	0.876	0.899
	CODMn	0.565	0.625	0.682	0.711	0.720	0.736	0.759	0.818
	DO	0.197	0.237	0.349	0.433	0.464	0.488	0.475	0.485
Dry season	TN	0.639	0.684	0.749	0.786	0.798	0.810	0.824	0.869
	NH3-N	0.667	0.741	0.829	0.879	0.882	0.894	0.906	0.928
	CODMn	0.525	0.583	0.588	0.592	0.573	0.577	0.601	0.587
	DO	0.583	0.607	0.662	0.670	0.652	0.658	0.637	0.62