Skip to main content

Table 2 Description and accuracy assessment for seven index pairs

From: Assessing swidden land use in Myanmar by decision tree-based detection method using landsat imagery

Threshold Name

Description

No. of Ground truth Plots

No. of Model Plots

Overlap Plots

Plot-based Accuracy %

Ground truth area (ha)

Model Area (ha)

Overlap area (ha)

Area-based Accuracy (%)

Pair_1

dNBR > 0.297 and slope > 10 and elevation > 150

100

97

72

74.23

129.42

103.76

81.95

78.98

Pair_2

RdNBR > 23 and slope > 10 and elevation > 150

100

88

68

77.27

129.42

81.27

66.68

82.04

Pair_3

dNDVI > 0.235 and slope > 10 and elevation > 150

100

55

41

74.55

129.42

44.80

32.58

72.72

Pair_4

dNBR > 0.297 and RdNBR > 23 and slope > 10 and elevation > 150

100

76

63

82.89

129.42

66.26

55.82

84.25

Pair_5

dNBR > 0.297 and dNDVI > 0.235 and slope > 10 and elevation > 150

100

55

41

74.55

129.42

44.12

32.07

72.69

Pair_6

RdNBR > 23 and dNDVI > 0.235 and slope > 10 and elevation > 150

100

48

37

77.08

129.42

31.81

23.92

75.20

Pair_7

RdNBR > 23 and RdNBR > 23 and dNDVI > 0.235 and slope > 10 and elevation > 150

100

48

37

77.08

129.42

31.81

23.92

75.20

  1. Threshold in bold letter and value is considered as a best-fit pair