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Table 1 Pre-fire stand age and percent of watershed burned for selected 4th-order watersheds

From: Fire severity influences large wood and stream ecosystem responses in western Oregon watersheds

 

Watershed characteristics

Fire characteristics

Stream name

Watershed area (km2)

MAP (mm)

Elevation (m)

MAT (°C)

Mean pre-fire stand age (y)

Fire

Fire area (km2)

Percent burned

Mean RAVG

Soil burn severity RMA

Biggs

9.27

2004

368

8.3

61.96

Holiday Farm

0

0

0

unburned

Buck

4.81

1727

654

7.8

159.62

Holiday Farm

0

0

0

unburned

Cook

21.71

1950

652

7.5

194.22

Holiday Farm

0

0

0

unburned

Ella

11.08

1927

420

9.7

76.50

Beachie Creek

0

0

0

unburned

Quartz

26.51

1727

699

7.8

164.03

Holiday Farm

0

0

0

unburned

Hands

7.09

2004

476

8.3

73.66

Holiday Farm

0.03

0.48

0.01

unburned

Norhorn

15.7

2399

877

6.8

173.87

Beachie Creek

0.56

3.54

0.05

unburned

Hugh

13.64

2399

903

6.8

168.40

Beachie Creek

1.24

9.09

0.11

unburned

Cripple

12.78

2211

432

7.4

189.11

Riverside

3.10

24.26

0.69

moderate

Haagen

8.04

1655

205

9.6

45.17

Holiday Farm

2.92

36.31

1.03

low

Canyon

19.71

2079

335

9.0

71.68

Riverside

6.40

32.46

1.21

unburned

Molalla

15.11

2399

647

6.8

116.83

Beachie Creek

7.01

46.37

1.55

low

Doe

5.65

1727

741

7.8

80.84

Holiday Farm

3.65

64.67

2.03

low

Clear

50.54

1665

303

10.6

84.13

Riverside

39.38

77.92

2.22

unburned

Mad

10.72

1981

528

9.8

81.70

Beachie Creek

8.46

78.96

2.37

low

Cougar

16.04

2079

608

9.0

82.78

Riverside

16.04

100

2.61

low

Big

7.03

2211

610

7.4

146.48

Riverside

7.03

100

2.91

low

Coal

21.50

1543

269

10.7

59.21

Beachie Creek

19.96

91.78

3.10

moderate

NF Molalla

23.59

2079

608

9.0

80.16

Riverside

20.57

87.20

3.73

low

Lukens

15.68

2471

759

6.7

156.59

Riverside

15.64

99.77

3.66

low

Stout

10.91

1927

470

9.7

81.31

Beachie Creek

10.91

100

3.97

moderate

Wycoff

6.49

1727

576

7.8

82.91

Holiday Farm

5.98

92.15

4.42

low

Finn

9.76

1762

276

9.0

67.89

Holiday Farm

9.76

100

5.94

moderate

Elkhorn

33.48

2182

343

8.8

140.47

Beachie Creek

33.48

100

6.36

moderate

  1. Characteristics of 4th-order watersheds selected using a stratified random sampling design (Category) of pre-fire stand age (< 85 or > 85 y based on 2016 LEMMA layer) and percent of watershed burned (0%, < 50%, > 50%, 100%). Soil burn severity in the riparian-management areas includes the area within 30.48 m (100 ft) of the stream, with values of unburned to very low, low severity, and  moderate severity. Mean rapid assessment vegetation condition (RAVG) reflects watershed mean values; higher values are associated with greater % overstory mortality as predicted from remote sensing. Mean pre-fire stand age represents an updated version of pre-fire stand-age information rather than the age included in our initial selection (2017; mean pre-fire stand age). We do not have stand-age information for 2020, immediately prior to the fire, and instead rely on the best available information