Relationships between Plant Biodiversity and Soil Fertility in a Mature Tropical Forest, Costa Rica
Table 4
ANOVA results () and correlation coefficient () of the different regressions with value > 0.10.
Statistical parameters
Regressions of the different relationships that were not significant with P value > 0.10
K HSR
K SSR
K HWSD
K SWSD
K TWSD
K HSSD
K SSSD
K TSSD
K SStR
K TStR
K HStD
K SStD
value
0.91
0.63
0.20
0.47
0.31
0.11
0.74
0.81
0.33
0.61
0.27
0.22
−0.04
−0.19
0.47
−0.28
−0.38
0.57
−0.13
−0.09
0.37
0.20
0.41
0.46
Statistical parameters
Regressions of the different relationships that were not significant with value > 0.10
K TStD
Ca HSR
Ca SSR
Ca HWSD
Ca SWSD
Ca TWSD
Ca HSSD
Ca SSSD
Ca TSSD
Ca HStR
Ca SStR
Ca TStR
value
0.61
0.93
0.40
0.17
0.57
0.98
0.26
0.74
0.57
0.33
0.86
0.99
−0.20
−0.04
−0.32
0.50
−0.22
0.01
0.42
−0.13
0.22
0.37
0.07
0.01
Statistical parameters
Regressions of the different relationships that were not significant with value > 0.10
Ca HStD
Ca SStD
Ca TStD
Mg HSR
Mg SSR
Mg HWSD
Mg SWSD
Mg TWSD
Mg HSSD
Mg SSSD
Mg TSSD
Mg HStR
value
0.46
0.94
0.21
0.82
0.33
0.18
0.55
0.98
0.27
0.73
0.59
0.35
0.28
0.03
−0.46
−0.09
−0.37
0.49
−0.23
0.01
0.41
−0.13
0.21
0.35
Statistical parameters
Regressions of the different relationships that were not significant with value > 0.10
Mg SStR
Mg TStR
Mg HStD
Mg SStD
Mg TStD
P HSR
P SSR
P HWSD
P SWSD
P TWSD
P HSSD
P SSSD
value
0.92
0.98
0.43
0.98
0.25
0.86
0.97
0.31
0.24
0.17
0.24
0.42
0.04
0.01
0.30
−0.01
−0.43
−0.07
−0.01
0.38
−0.44
−0.50
0.43
−0.31
Statistical parameters
Regressions of the different relationships that were not significant with value > 0.10
P TSSD
P SStR
P TStR
P SStD
P TStD
Fe HSR
Fe SSR
Fe TSR
Fe HWSD
Fe SWSD
Fe TWSD
Fe HSSD
value
0.59
0.16
0.27
0.15
0.67
0.59
0.83
0.29
0.64
0.67
0.46
0.31
−0.21
0.51
0.41
0.52
−0.16
−0.21
−0.08
−0.40
0.18
−0.17
−0.28
0.38
Statistical parameters
Regressions of the different relationships that were not significant with value > 0.10
Fe SSSD
Fe TSSD
Fe HStR
Fe SStR
Fe SStD
Fe TStD
Cu HSR
Cu SSR
Cu TSR
Cu HWSD
Cu SWSD
Cu TWSD
value
0.89
0.82
0.16
0.41
0.33
0.91
0.35
0.74
0.43
0.57
0.32
0.52
0.05
−0.09
0.51
0.31
0.37
0.04
0.35
0.13
0.30
−0.22
0.38
0.25
Statistical parameters
Regressions of the different relationships that were not significant with value > 0.10
Cu HSSD
Cu SSSD
Cu TSSD
Cu HStR
Cu SStR
Cu TStR
Cu HStD
Cu SStD
Cu TStD
Zn HSR
Zn SSR
Zn TSR
value
0.14
0.37
0.76
0.85
0.43
0.42
0.35
0.57
0.88
0.36
0.32
0.96
−0.53
0.34
0.12
−0.08
−0.30
0.31
0.35
−0.22
−0.06
−0.35
−0.38
0.02
Statistical parameters
Regressions of the different relationships that were not significant with value > 0.10
Zn HWSD
Zn SWSD
Zn TWSD
Zn HSSD
Zn SSSD
Zn TSSD
Zn HStR
Zn SStR
Zn TStR
Zn HStD
Zn TStD
Mn HSR
value
0.81
0.48
0.91
0.79
0.70
0.78
0.45
0.50
0.14
0.104
0.63
0.94
−0.09
−0.27
−0.04
0.10
−0.15
0.11
0.29
−0.26
0.53
0.58
−0.19
0.03
Statistical parameters
Regressions of the different relationships that were not significant with value > 0.10
Mn SSR
Mn TSR
Mn HWSD
Mn SWSD
Mn TWSD
Mn HSSD
Mn SSSD
Mn TSSD
Mn SStR
Mn TStR
Mn SStD
Mn TStD
value
0.62
0.11
0.20
0.26
0.33
0.32
0.48
0.72
0.52
0.15
0.32
0.82
−0.19
−0.57
0.47
−0.42
−0.37
0.38
−0.27
−0.14
0.25
0.52
0.38
−0.09
Statistical parameters
Regressions of the different relationships that were not significant with value > 0.10
Al HSR
Al SSR
Al TSR
Al HWSD
Al SWSD
Al HSSD
Al SSSD
Al TSSD
Al HStR
Al SStR
Al TStR
Al HStD
value
0.54
0.79
0.21
0.80
0.65
0.32
0.69
0.29
0.18
0.24
0.22
0.72
−0.24
−0.10
−0.46
0.10
−0.18
0.38
−0.16
−0.39
0.49
0.43
−0.45
−0.14
Statistical parameters
Regressions of the different relationships that were not significant with value > 0.10
Al SStD
Al TStD
C HSR
C SSR
C HWSD
C SWSD
C TWSD
C HSSD
C SSSD
C TSSD
C HStR
C SStR
value
0.38
0.76
0.84
0.38
0.17
0.53
0.79
0.20
0.70
0.72
0.24
0.72
0.33
−0.12
−0.08
−0.33
0.50
−0.24
−0.10
0.47
−0.15
0.14
0.44
0.14
Statistical parameters
Regressions of the different relationships that were not significant with value > 0.10
C TStR
C HStD
C SStD
C TStD
C/N HSR
C/N SSR
C/N TSR
C/N HWSD
C/N SWSD
C/N HSSD
C/N SSSD
C/N TSSD
value
0.89
0.48
0.82
0.23
0.61
0.83
0.29
0.87
0.39
0.47
0.43
0.11
0.06
0.27
0.09
−0.45
0.20
−0.08
0.40
−0.06
0.33
−0.28
0.30
0.57
Statistical parameters
Regressions of the different relationships that were not significant with value > 0.10
C/N TStR
C/N HStD
C/N SStD
C/N TStD
N HSR
N SSR
N TSR
N HWSD
N SWSD
N HSSD
N SSSD
N TSSD
value
0.67
0.92
0.12
0.85
0.76
0.88
0.91
0.83
0.44
0.98
0.51
0.15
0.17
−0.04
−0.55
−0.08
−0.12
0.06
−0.04
−0.08
−0.30
0.01
−0.25
−0.52
Statistical parameters
Regressions of the different relationships that were not significant with value > 0.10
N HStR
N SStR
N TStR
N HStD
N SStD
N TStD
SFI HSR
SFI SSR
SFI HWSD
SFI SWSD
SFI TWSD
SFI HSSD
value
0.20
0.44
0.45
0.37
0.43
0.51
0.88
0.61
0.15
0.34
0.37
0.13
0.47
0.30
0.29
0.34
0.30
0.25
−0.06
−0.20
0.52
−0.36
−0.34
0.55
Statistical parameters
Regressions of the different relationships that were not significant with value > 0.10
SFI SSSD
SFI TSSD
SFI SStR
SFI TStR
SFI HStD
SFI SStD
SFI TStD
pH HSR
pH SSR
pH TSR
pH HWSD
pH SWSD
value
0.57
0.92
0.33
0.54
0.17
0.29
0.42
0.63
0.80
0.64
0.57
0.86
−0.22
−0.04
0.37
0.24
0.50
0.40
−0.31
0.19
0.10
−0.18
0.22
0.07
Statistical parameters
Regressions of the different relationships that were not significant with value > 0.10
pH TWSD
pH HSSD
pH SSSD
pH TSSD
pH HStR
pH SStR
pH HStD
pH SStD
pH TStD
value
0.23
0.64
0.65
0.16
0.84
0.98
0.20
0.92
0.52
0.44
0.18
0.18
0.51
0.08
−0.01
0.47
0.04
−0.25
HSR: herb species richness; SSR: shrub species richness; TSR: tree species richness; HWSD: herb Shannon-Wiener (S-W) species diversity; SWSD: shrub S-W species diversity; TWSD: tree S-W species diversity; HSSD: herb Simpson’s species diversity; SSSD: shrub Simpson’s species diversity; TSSD: tree Simpson’s species diversity; HStR: herb structural richness; SStR: shrub structural richness; TStR: tree structural richness; HStD: herb structural diversity; SStD: shrub structural diversity; TStD: tree structural diversity; CEC: cation exchange capacity; C/N: C/N ratio; N: total N in organic matter; and SFI: soil fertility index.