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Despite greater total R and R:Pg from OPEN and MH relative to RP sites (Table 4, Figure 8), Z-scores indicated few significant inter-site differences in R (Table 6). OPEN1 had greater R than two RP sites, while MH3 R exceeded that at OPEN and RP sites. There were no significant differences in R or R:Pg between sites in a given land cover, or between YP and OP. Inter-site R differences were largely driven by growing season conditions, with greater R at OPEN1 relative to YP1 and OP1, and at MH3 relative to all RP sites. Greater fall R at sites with little St change relative to those with marked St increases (Table 5) was often balanced by less R at the former during winter–spring.

Table 6

Significant inter-site differences in recharge (R) below 1 m depth for the study period based on Z-scores

Inter-site difference in RSignificance level
OPEN1 > YP2 0.10 
OPEN1 > OP1 0.10 
MH3 > OPEN1 0.10 
MH3 > OPEN2 0.05 
MH3 > YP1 0.05 
MH3 > YP2 0.05 
MH3 > YP3 0.05 
MH3 > OP1 0.05 
MH3 > OP3 0.05 
Inter-site difference in RSignificance level
OPEN1 > YP2 0.10 
OPEN1 > OP1 0.10 
MH3 > OPEN1 0.10 
MH3 > OPEN2 0.05 
MH3 > YP1 0.05 
MH3 > YP2 0.05 
MH3 > YP3 0.05 
MH3 > OP1 0.05 
MH3 > OP3 0.05 

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