Ecological Processes

Table 2 Changes in P value from simple linear models that predict PM_2.5 concentration from total green cover, total edge length, grass cover, and forest cover at seven different scales by season from July 11, 2013, through May 31, 2015 in Nanjing, China

From: Do green spaces affect the spatiotemporal changes of PM_2.5 in Nanjing?

Radius (km)	Spring	Summer	Autumn	Winter	Spring	Summer	Autumn	Winter
	Green cover				Edge length
0.5	0.058	0.656	0.131	0.921	0.047	0.486	0.164	0.921
1	0.005	0.772	0.092	0.882	0.003	0.441	0.120	0.870
2	0.005	0.274	0.014	0.741	0.006	0.437	0.115	0.933
3	0.039	0.830	0.049	0.890	0.053	0.702	0.133	0.807
4	0.551	0.743	0.218	0.969	0.363	0.776	0.264	0.654
5	0.830	0.567	0.847	0.790	0.405	0.829	0.322	0.602
6	0.842	0.589	0.928	0.674	0.577	0.987	0.331	0.650
	Grassland cover				Forest cover
0.5	0.107	0.764	0.589	0.429	0.936	0.914	0.506	0.171
1	0.041	0.972	0.628	0.433	0.028	0.653	0.583	0.560
2	0.058	0.956	0.336	0.705	0.061	0.559	0.066	0.443
3	0.378	0.703	0.232	0.898	0.590	0.776	0.133	0.659
4	0.555	0.835	0.243	0.941	0.958	0.625	0.286	0.940
5	0.511	0.934	0.206	0.902	0.906	0.640	0.326	0.996
6	0.585	0.906	0.151	0.866	0.814	0.510	0.381	0.984
	Green cover (PM_2.5 ≥ 75 ug·m⁻³)				Green cover (PM_2.5 < 75 ug·m⁻³)
0.5	0.856	0.531	0.379	0.968	0.003	0.275	0.227	0.336
1	0.445	0.391	0.260	0.992	0.002	0.264	0.493	0.385
2	0.315	0.292	0.176	0.880	0.001	0.174	0.470	0.277
3	0.519	0.252	0.102	0.988	0.011	0.438	0.672	0.253
4	0.704	0.377	0.193	0.784	0.213	0.457	0.390	0.109
5	0.799	0.379	0.163	0.567	0.430	0.554	0.905	0.176
6	0.834	0.394	0.202	0.513	0.793	0.342	0.508	0.319

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