Table 1 Chemical weathering fluxes and rates of different rocks and associated CO2 consumption for large rivers in the Tibetan Plateau

From: Refined weathering CO2 budget of the Tibetan Plateau strongly modulated by sulphide oxidation

    

Flux of silicate, carbonate, total rock weathering, and OWP

Weathering rates of silicate, carbonate, total rock and pyrite

CO2 budgets by silicate and carbonate weathering

References

River

Hydrological station

Basin Area

Discharge

Cationsil

TDSsil

TDScarb

TDStotal

FSO4pyrite

Cationsil

SWR

CWR

TWR

SOR

CO2sil

CO2carb

CO2carb-H2SO4

Net-CO2con

ФCO2net

 

103 km2

109 m3 a−1

106 ton a-1

109 mol a−1

ton km−2 a−1

103 mol km−2 a−1

109 mol a−1

103 mol km−2 a−1

 

Upper Huang

Tangnahai

122

20.00

0.18

0.29

2.41

3.18

3.39

1.48

2.38

19.75

26.06

27.75

7.65

22.21

2.89

4.76

39.0

This study

 

Xunhua

145.3

21.42

0.24

0.41

3.94

4.54

5.16

1.64

2.82

27.14

31.26

35.51

10.03

36.75

4.54

5.49

37.8

This study

Dadu

Shimian

66

37.84

0.22

0.45

2.73

3.49

2.41

3.40

6.77

41.40

52.87

36.51

9.00

26.42

2.06

6.94

105.1

This study

Yalong

Tongzilin

128.4

60.85

0.37

0.78

4.74

6.03

5.17

2.90

6.07

36.91

47.00

40.24

15.54

45.00

4.41

11.13

86.7

This study

Jinsha

Zhimenda

137.7

12.80

0.25

0.32

1.75

5.45

4.00

1.82

2.35

12.70

39.56

29.07

9.71

15.69

3.06

6.66

48.3

This study

 

Shigu

214.2

42.57

0.29

0.55

4.36

10.72

9.70

1.35

2.57

20.34

50.06

45.27

10.26

37.67

8.54

1.72

8.0

This study

 

Panzhihua

259.2

56.84

0.44

0.78

5.51

12.85

11.18

1.68

3.01

21.25

49.57

43.13

16.16

48.59

9.58

6.57

25.4

This study

Lancang

Gongguoqiao

97.2

31.10

0.26

0.43

3.18

4.98

9.07

2.68

4.39

32.74

51.24

93.27

9.31

25.65

7.67

1.63

16.8

This study

Nu

Daojie

110.2

53.10

0.31

0.55

3.83

5.28

11.32

2.83

5.02

34.78

47.92

102.75

10.89

31.00

9.63

1.26

11.4

This study

Palong Tsangpo

Bomi

9.55

10.64

0.02

0.04

0.45

0.58

0.70

1.88

4.33

47.20

60.98

73.47

0.58

3.97

0.65

−0.07

−7.4

This study

Yarlung Tsangpo

Nuxia

173

45.42

0.24

0.46

2.62

3.51

9.25

1.37

2.68

15.15

20.31

53.46

7.92

19.14

7.66

0.26

1.5

This study

LRB-TP

988.9

317.2

2.10

3.90

27.0

41.3

54.3

2.12

3.95

27.3

41.7

54.9

79.4

236.5

46.2

33.2

33.6

This study

 Yellow R.

 

752

28.3

1.52

7.46

18.4

27.4

  

9.9

24.5

36.4

 

26.2

100.5

   

Refs. 37,38

 Changjiang

 

1705

899

4.10

14.6

62.0

73.0

 

2.4

8.56

14

22.6

 

191

646

   

Ref. 28

 Salween

 

325

211

1.13

2.99

23.9

27.0

 

3.49

9.19

73.5

82.7

 

50.2

248.6

   

Refs. 39,40,41

 Irrawaddy

 

413

486

2.73

7.96

21.0

29.4

 

6.65

19.4

51.2

70.6

 

104

132

   

 Mekong

 

795

467

3.46

8.11

21.9

30.0

 

4.35

10.2

27.5

37.7

 

151.8

227.4

   

 Ganges

 

1060

459

4.22

7.76

30.4

41.0

 

3.98

7.31

28.7

36

 

181.2

312.9

   

Ref. 26; Refs. 42,43

 Brahmaputra

 

583

612

2.60

7.28

27.4

36.4

 

4.46

12.5

47

59.5

 

108.4

283.3

   

 Indus

 

916

90

1.60

3.50

6.6

16.0

 

1.75

3.82

7.21

17.5

 

54

59

   

Refs. 24,25

DS-LRB-TP

6549

3252

21.4

59.7

212

280

      

866.8

2009.7

    

 Golobal

 

99,259

37,358

200

550

1290

2131

1300

   

24

1300

8700

12,300

   

Refs. 12,24

 LRB-TP (% of global)

1.00

0.85

1.05

0.71

2.09

1.94

4.17

     

0.91

1.92

    

 DS-LRB-TP (% of global)

6.60

8.71

10.7

10.8

16.4

13.2

      

9.96

16.34

    
  1. LRB-TP large river basins on the Tibetan Plateau, DS-LRB-TP downstream of large river basins originating from the Tibetan Plateau, OWP oxidative weathering of pyrite, TDS total dissolved solids, SOR sulfide oxidation rate, SWR silicate weathering rate, CWR carbonate weathering rate, TWR total weathering rate.
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