Litter Controls Earthworm-Mediated Carbon and Nitrogen Transformations in Soil from Temperate Riparian Buffers

Table 3

Dissolved organic carbon (DOC) and nitrate () from microcosms containing riparian soils. Values are the mean (±standard error) of nine sampling dates (). Within a column, values followed by the same letter are not significantly different () according to Dunn-Nemenyi’s procedure for multiple comparisons.

Earthworm	Litter	DOC-C		-N
treatment	treatment	(mg L^−1 leachate)		(mg L^−1 leachate)
Earthworm	Soybean
	Reed canarygrass
	Deciduous mix
	No litter
Control	Soybean
	Reed canarygrass
	Deciduous mix
	No litter
Kruskal-Wallis test			df	>
DOC
Litter		127.02	3	<0.0001
Earthworm		22.52	1	<0.0001
Litter × earthworm		26.3182	7	<0.0001
Kruskal-Wallis test			df	>
Litter		44.86	3	<0.0001
Earthworm		1.76	1	0.1845
Litter × earthworm		50.67	7	<0.0001