The importance of canopy-derived dissolved and particulate organic matter (DOM and POM) – comparing throughfall solutionfrom broadleaved and coniferous forests

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Table II

Correlation analysis (Spearman’s correlation coefficient) between throughfall concentrations of DOC, TOC, DN, TN, NO₃-N and solution pH, electrical conductivity (EC), air temperature and throughfall amount of water of the beech and spruce site at Solling (2005–2007).

	Solution	EC	Air	Throughfall
	pH	(μS cm⁻¹)	temperature	amount of water
Beech (2005–2007)
DOC	0.252*	0.558**	0.350*	− 0.329**
TOC	0.128*	0.563**	0.541*	− 0.254**
DN	0.124*	0.358**	0.456*	− 0.486**
TN	0.125*	0.391**	0.483*	− 0.457**
NO₃-N	0.190**	0.310**	0.316*	− 0.496**
Spruce (2005–2007)
DOC	0.160*	0.678**	0.475*	− 0.316**
TOC	0.320**	0.922*	0.386*	− 0.331**
DN	0.334**	0.457**	0.295*	− 0.452**
TN	0.388**	0.321**	0.375*	− 0.427**
NO₃-N	0.184**	0.781*	0.677*	− 0.415**

DOC = Dissolved Organic Carbon, TOC = Total Organic Carbon, DN = Dissolved Nitrogen, TN = Total Nitrogen, Level of significance (* p < 0.05, ** p < 0.01, *** p < 0.001), indicating differences between beech vs. spruce.