Forest Ecosystems

Table 4 Significance and correlation between deposition flux with time and site

From: Deposition of water-soluble inorganic ions in PM_2.5 in a typical forestry system in Beijing, China

Ions deposition flux	Time		Site
Ions deposition flux	Sig.	Pearson Correlation	Sig.	Pearson Correlation
F
Na⁺	0.001	−0.573^a	0.065
NH₄⁺	0.001	−0.578^a	0.906
K⁺	0.002	−0.454^a	0.001	0.413^a
Mg²⁺	0.009	−0.437^a	0.001	0.437^a
Ca²⁺	0.000	−0.651^a	0.113
Cl⁻	0.001	−0.556^a	0.176
NO₃⁻	0.023	−0.418^b	0.330
SO₄²⁻	0.000	−0.595^a	0.026	0.278^b

^a: Correlation is significant at the 0.01 level (2-tailed). ^b: Correlation is significant at the 0.05 level (2-tailed)

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