Research Article

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

Table 6

Correlations between C and N losses via gaseous flux or in leachates and ancillary soil measurements, averaged from measurements ( = 144) taken at regular intervals during a 20 wks incubation study from microcosms filled with riparian soil without earthworms. Values are Spearman’s rank order coefficients (ρ), with , , and indicating significant correlations at , 0.01, and 0.001, respectively, and NS = nonsignificant correlation.

fluxO fluxSoil Soil Soil MBNSoil MBCLeachate DOC Leachate

flux1.0000
O flux0.001.0000
Soil 0.25***−0.081.0000
Soil −0.46***0.18*−0.081.0000
Soil MBN0.19*0.45***0.02−0.021.0000
Soil MBC0.24***−0.040.08−0.171.0000
Leachate DOC0.53***−0.23***0.24***0.34***0.120.141.0000
Leachate 0.04−0.02−0.07−0.20−0.25***−0.13**−0.231.0000