|
Variables
|
AOA
|
AOB
|
|---|
|
Variance explained (%)
|
P value
|
Variance explained (%)
|
P value
|
|---|
|
Climate
|
|
MAT (°C)
|
5.53
|
0.01
|
2.00
|
0.30
|
|
MAP (mm)
|
7.68
|
0.00
|
1.00
|
0.36
|
|
Catchment land use
|
|
Agriculture (%)
|
2.00
|
0.50
|
22.00
|
0.00
|
|
Built-up land (%)
|
4.76
|
0.02
|
2.00
|
0.23
|
|
Vegetation (%)
|
3.68
|
0.15
|
0.00
|
0.63
|
|
Water bodies (%)
|
0.00
|
0.55
|
3.00
|
0.09
|
|
Water quality
|
|
pH
|
3.38
|
0.13
|
1.00
|
0.54
|
|
Depth (m)
|
3.38
|
0.13
|
2.00
|
0.11
|
|
DO (mg L‒1)
|
3.53
|
0.13
|
3.00
|
0.11
|
|
TOC (mg L‒1)
|
2.15
|
0.51
|
1.00
|
0.36
|
|
NH4
+ (mg L‒1)
|
7.06
|
0.00
|
1.00
|
0.31
|
|
NO3
− (mg L‒1)
|
4.14
|
0.06
|
3.00
|
0.06
|
|
TP (mg L‒1)
|
3.22
|
0.24
|
12.00
|
0.01
|
|
Chl-a (mg m−3)
|
3.07
|
0.20
|
22.00
|
0.00
|
|
Sediment properties
|
|
Moisture (%)
|
3.07
|
0.16
|
2.00
|
0.37
|
|
Density (g cm−3)
|
1.84
|
0.55
|
1.00
|
0.19
|
|
STC (mg g−1)
|
2.92
|
0.24
|
1.00
|
0.38
|
|
STN (mg g−1)
|
2.30
|
0.38
|
2.00
|
0.15
|
|
C/N
|
7.06
|
0.00
|
0.00
|
0.58
|
|
Vegetation characteristics
|
|
Richness
|
2.46
|
0.40
|
1.00
|
0.44
|
|
Biomass (g m‒2)
|
1.23
|
0.78
|
1.00
|
0.35
|
|
PTN (mg g−1)
|
3.99
|
0.04
|
1.00
|
0.41
|
|
PTP (mg g−1)
|
2.76
|
0.24
|
0.00
|
0.63
|
|
All variables
|
81.21
| |
84.30
| |
- Significance was determined by 499 permutations
