Assessing drivers of plantation forest productivity on eroded and non-eroded soils in hilly land, eastern North Island, New Zealand

New Zealand Journal of Forestry Science

Table 7 Summary of linear regression analysis between the ratios of eroded to non-eroded soil properties and Pinus radiata tree volume

Ratio of eroded to non-eroded soil data	Slope	pvalue	Probability^a
Total carbon	0.2	0.0154	**
Total nitrogen	0.2	0.0136	**
Soil organic matter	0.2	0.0183	**
Total phosphorus	0.2	0.0324	*
Carbon to nitrogen ratio	−0.4	0.2512	ns
Soil pH	−1.7	0.2122	ns
Mean soil depth	−0.3	0.2113	ns
Mean A horizon thickness	0.1	0.1537	ns
Bulk density	−0.1	0.8678	ns