County-Scale Spatial Distribution of Soil Enzyme Activities and Enzyme Activity Indices in Agricultural Land: Implications for Soil Quality Assessment

Table 5

Multiple linear regressions between soil physicochemical properties and enzyme activity indices in surface horizon (0–20 cm) of Changwu County.

Samples	Multiple regression equation
Orchard; ()		0.491	<0.001
		0.483	<0.001
Cropland; ()		0.63	<0.001
		0.628	<0.001
Total; ()		0.53	<0.001
		0.528	<0.001