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|
Type of variable
|
Variable
|
1971—1999
|
2000—2016
|
|---|
|
Tau
|
P-value
|
Tau
|
P-value
|
|---|
|
Forest disturbance
|
CECA
|
1.000
|
< 0.001
|
0.950
|
< 0.001
|
|
Carbon
|
AGBIO
|
0.995
|
< 0.001
|
− 0.750
|
< 0.001
|
|
TEC
|
1.000
|
< 0.001
|
− 0.267
|
0.163
|
|
DOM
|
0.995
|
< 0.001
|
0.783
|
< 0.001
|
|
NPP
|
0.974
|
< 0.001
|
− 0.217
|
0.260
|
|
NBP
|
-0.799
|
< 0.001
|
− 0.133
|
0.499
|
|
Climate
|
Tmean
|
0.280
|
0.038
|
0.200
|
0.300
|
|
Tmax
|
0.280
|
0.038
|
0.217
|
0.260
|
|
Tmin
|
0.302
|
0.026
|
0.067
|
0.753
|
|
P
|
0.127
|
0.353
|
− 0.083
|
0.685
|
|
PET
|
0.206
|
0.128
|
0.233
|
0.224
|
|
Water
|
ET
|
0.164
|
0.228
|
− 0.417
|
0.027
|
|
Q
|
0.185
|
0.173
|
0.333
|
0.079
|
|
Runoff ratio
|
0.037
|
0.797
|
0.150
|
0.444
|
|
Carbon and water relationship
|
WUE
|
0.032
|
0.828
|
0.383
|
0.043
|
- Where, tau is the z-statistic from the Mann–Kendall test indicating the direction of change of the variable; p-value is the level of significance from the Mann–Kendall test; and bolded italics indicate significant trends at a significance level of 0.05), CECA cumulative clear-cut area, AGBIO above ground biomass, DOM dead organic matter, TEC total ecosystem carbon, NPP net primary production, NBP net biome production, Tmean annual average daily temperature, Tmin annual minimum daily temperature, Tmax annual maximum daily temperature, P precipitation, PET potential evapotranspiration, ET evapotranspiration, Q mean annual streamflow, WUE water use efficiency
