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

Table 5

Tree mound effects on soil nutrients derived from soil samples.

	Intact tree mound	Removed-litter tree mound
Total C%
Untreated	6.32^a (4.96–7.69)	5.19^a (3.83–6.56)
Masticated	7.07^a (5.71–8.43)	6.23^a (4.86–7.59)
Total N%
Untreated	0.26^a (0.21–0.32)	0.21^a (0.15–0.26)
Masticated	0.28^a (0.23–0.34)	0.24^a (0.19–0.30)
C : N ratio
Untreated	24.55^b (17.11–35.24)	25.81^a (17.98–37.04)
Masticated	24.95^b (17.39–35.8)	25.76^a (17.95–36.97)
Olsen P mg kg^−1
Untreated	21.14^a (15.9–28.12)	14.65^a (11.01–19.48)
Masticated	33.99^a (25.56–45.21)	20.39^b (15.33–27.12)
SO4^−-S mg kg^−1
Untreated	38.32^a (13.74–106.9)	30.92^a (11.08–86.26)
Masticated	31.21^a (11.19–87.06)	12.54^a (4.5–34.99)
pH
Untreated	7.62^a (7.53–7.71)	7.70^a (7.61–7.78)
Masticated	7.63^a (7.54–7.72)	7.78^a (7.69–7.87)

Estimates with the same letter between columns are not different (𝑃<0.01). Numbers in parentheses are 95% confidence intervals.