Factors

Class

Ncell (Ni)

∑Ncell (Ni)

Ncell (Si)

∑Ncell (Si)

FRi

Slope (Degree)

0 - 5

698,275

693

0.11

5 - 10

855,927

3261

0.43

10 - 20

2,191,745

10,902,214

18,747

97,013

0.96

20 - 30

2,989,718

32,738

1.23

30 - 40

2,754,838

30,104

1.23

40 - 50

1,147,180

10,297

1.01

>50

264,531

1173

0.50

Aspect

Flat

10,741

2

0.02

North

1,443,722

18,691

1.45

Northeast

1,238,752

10,902,214

11,230

97,013

1.02

East

1,287,487

11,657

1.02

Southeast

1,381,378

12,749

1.04

South

1,390,242

10,920

0.88

Southwest

1,260,106

6052

0.54

West

1,432,711

11,082

0.87

Northwest

1,457,075

14,630

1.13

Altitude

1143 - 2000

1,890,315

48,260

2.87

2000 - 2500

1,908,386

29,009

1.71

2500 - 3000

2,084,264

10,902,214

15,361

97,013

0.83

3000 - 3500

2,300,951

3560

0.17

3500 - 4000

2,004,771

753

0.04

4000 - 4500

599,657

70

0.01

4500 - 5922

113,870

0

0.00

Curvature

Concave

5,127,677

46,429

1.02

Planar

887,690

10,902,213

7293

97,013

0.92

Convex

4,886,846

43,291

1.00

Precipitation (mm/years)

338 - 500

1,097,300

3648

0.37

500 - 600

983,972

5602

0.64

600 - 700

1,600,635

10,823,104

15,661

96,308

1.10

700 - 800

1,932,117

27,033

1.57

800 - 900

2,420,998

38,813

1.80

900 - 1000

1,765,628

5551

0.35

1000 - 1190

1,022,454

647

0.07

TWI

1.7 - 2.3

199

0

0.00

2.3 - 3.1

17,898

62

0.39

3.1 - 4

656,171

10,902,214

5627

96,951

0.96

4 - 5.5

4,220,421

40,763

1.09

> 5.5

6,007,525

50,561

0.95

SPI

0 - 6

2,424,750

16,304

0.76

6 - 12

457,849

2679

0.66

12 - 18

568,546

10,902,214

4660

97,013

0.92

18 - 24

546,554

4960

1.02

24 - 30

437,499

3944

1.01

>30

6,467,016

64,466

1.12