Mechanical Mastication of Utah Juniper Encroaching Sagebrush Steppe Increases Inorganic Soil N

Table 3

Tree mastication and intact tree mound effects on soil nutrients derived from soil samples.

	Untreated	Masticated
Total C%
Tree mound intact	6.32^a (4.96–7.69)	7.07^a (5.71–8.43)
Interspace	3.12^b (1.76–4.49)	3.70^b (2.34–5.07)
Total N%
Tree mound intact	0.26^a (0.21–0.32)	0.28^a (0.23–0.34)
Interspace	0.11^b (0.06–0.17)	0.10^b (0.05–0.16)
C : N ratio
Tree mound intact	24.55^b (17.11–35.24)	24.95^b (17.39–35.8)
Interspace	33.20^a (23.14–47.66)	41.12^a (28.65–59.00)
Olsen P mg kg^−1
Tree mound intact	21.14^a (15.9–28.12)	33.99^a (25.56–45.21)
Interspace	21.02^a (15.80–27.96)	22.65^a (17.03–30.12)
SO4^−-S mg kg^−1
Tree mound intact	38.32^a (13.74–106.9)	31.21^a (11.19–87.06)
Interspace	4.82^b (1.73–13.46)	8.33^b (2.99–23.23)
pH
Tree mound intact	7.62^a (7.53–7.71)	7.63^a (7.54–7.72)
Interspace	7.70^a (7.61–7.79)	7.68^a (7.59–7.77)

No differences between columns (𝑃>0.01). Estimates with the same letter between rows are not different (𝑃<0.01). Numbers in parentheses are 95% confidence intervals.