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. 2018 Jul 3;13(7):e0199333. doi: 10.1371/journal.pone.0199333

Table 2. Results of linear mixed models testing the effect of restoration on hydrology, outside and inside the boundaries of each easement.

Each model included well elevation and annual rainfall as covariates.

Easements Response variables Explanatory variables Chisq
P-value
South Marsh Flooded days/year Restoration 26.38 <0.001
(within easement) Annual rainfall 3.77 0.052
Well elevation 8.39 0.004
Pre-restoration Post-restoration
20.2 CI [0, 44.6] 95.1 CI [73.4, 117.0]
South Marsh Median Water table Restoration 68.38 <0.001
(within easement) (annual) Annual rainfall 23.88 <0.001
Well elevation 5.83 0.016
Pre-restoration Post-restoration
-95.2 CI [-105.6, -84.9] -38.4 CI [-47.3, -29.5]
South Marsh Flooded days/year Restoration 2.25 0.156
(outside easement) Annual rainfall 1.97 0.182
Well elevation 28.66 <0.001
Pre-restoration Post-restoration
50.4 CI [0, 104.4] 75.8 CI [23.2, 128.3]
South Marsh Median Water table Restoration 1.77 0.205
(outside easement) (annual) Annual rainfall 6.51 0.020
Well elevation 6.47 0.023
Pre-restoration Post-restoration
-74.4 CI [-115.5, -33.4] -57.4 CI [-97.4, -17.4]
     
East Marsh Flooded days/year Restoration 2.84 0.106
(within easement) Annual rainfall 12.78 0.002
Well elevation 1.35 0.257
Pre-restoration Post-restoration
220.6 CI [74.8, 365] 180.8 CI [37.2, 324.4]
East Marsh Median Water table Restoration 1.22 0.28
(within easement) (annual) Annual rainfall 13.88 0.001
Well elevation 1.45 0.24
Pre-restoration Post-restoration
2.7 CI [-75.6, 80.9] -6.8 CI [-83.9, -70.3]
East Marsh Flooded days/year Restoration 7.66 0.006
(outside easement) Annual rainfall 14.07 <0.001
Well elevation 29.79 <0.001
Pre-restoration Post-restoration
48.9 CI [30.8, 67.0] 24.5 CI [9.1, 39.9]
East Marsh Median Water table Restoration 6.84 0.009
(outside easement) (annual) Annual rainfall 23.70 <0.001
Well elevation 36.36 <0.001
Pre-restoration Post-restoration
-89.8 CI [-106.2, -73.4] -110.5 CI [-124.6, -96.5]