NDVI-Based Vegetation Change in Inner Mongolia from 1982 to 2006 and Its Relationship to Climate at the Biome Scale
Table 3
Correlation coefficients between monthly mean NDVI and , PET, , , and in the preceding month for different vegetation types.
Vegetation types
Climate variables
Correlation coefficient
4
5
6
7
8
9
10
Forest
−0.51
***
0.11
0.25
−0.05
−0.21
−0.19
0.14
PET
0.63***
0.32
−0.24
−0.10
0.32
0.49**
0.01
0.40*
0.48**
−0.20
0.01
−0.07
0.35
*
−0.06
0.45**
0.36*
−0.32
−0.03
0.09
0.45
**
−0.09
0.37
*
0.49
**
0.07
0.14
−0.28
−0.09
0.03
Meadow steppe
−0.05
0.25
0.50
**
0.03
0.01
0.57
***
0.48
**
PET
0.51
**
0.16
−0.19
−0.27
−0.01
−0.48
**
−0.36
*
0.29
0.33
−0.03
0.06
0.15
−0.30
0.07
0.30
0.33
−0.16
0.02
0.08
−0.40
**
−0.14
0.28
0.35*
0.14
0.15
0.25
0.11
0.37
*
Typical steppe
0.04
0.50**
0.39*
0.20
0.53
***
0.66
***
0.22
PET
0.37
*
−0.14
−0.41**
−0.45
**
−0.48
**
−0.74
***
−0.17
0.33
0.41
**
0.15
−0.20
0.00
−0.51
**
0.19
0.36
*
0.37
*
0.01
−0.22
−0.15
−0.59
***
0.09
0.33
0.48
**
0.29
−0.14
0.32
−0.15
0.30
Desert steppe
0.22
0.71***
0.64
***
0.51***
0.71
***
0.74
***
0.04
PET
0.16
−0.34*
−0.71
***
−0.33
−0.40**
−0.67
***
−0.23
0.30
0.21
−0.05
−0.41
**
0.02
−0.44
**
0.01
0.29
0.14
−0.24
−0.42
**
−0.07
−0.47
**
0.04
0.30
0.35*
0.27
−0.27
0.29
−0.21
0.03
Desert
0.13
−0.04
0.68
***
0.12
0.14
0.40
**
−0.18
PET
0.01
−0.11
−0.44
**
−0.02
0.15
−0.27
−0.12
0.13
0.18
−0.09
−0.08
0.26
0.02
0.04
0.17
0.17
−0.16
−0.05
0.25
−0.01
0.09
0.10
0.18
0.13
−0.06
0.27
0.05
−0.08
Crop
0.27
0.08
0.09
0.02
0.11
0.13
0.21
PET
−0.19
0.04
−0.43
**
−0.31
−0.24
−0.32
−0.15
0.10
0.23
−0.23
0.23
0.32
−0.02
−0.03
0.10
0.26
−0.29
0.20
0.20
−0.09
−0.09
0.11
0.20
−0.14
0.28
0.52
***
0.15
0.04
, **, and * indicate , , and , respectively; Bolded numbers denote larger correlation coefficients between the monthly mean NDVI and the corresponding climate variables in the preceding month, compared with those for climate variables in the same month.
