Land Cover Mapping Based on Multisource Spatial Data Mining Approach for Climate Simulation: A Case Study in the Farming-Pastoral Ecotone of North China
Table 3
The attribute gain ratio value for constructing decision tree.
Name
Gain ratio
Rank
Description
X
0.03
8
Rectangular coordination of longitude
Y
0.22
2
Rectangular coordination of latitude
PA
0.12
6
0.1 mm annual precipitation
TA
0.20
3
0.1°C annual accumulated temperature
DEM
0.15
4
Elevation
LFM
0.11
7
Landform type
NDVI-3
0.22
2
Normalized differential vegetation index in March
NDVI-12
0.27
1
Normalized differential vegetation index in December