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Table 3 Ecosystem service value coefficients for each land use category obtained from equation ( 1 ) ($ per hectare per year * ; revised from Xie et al. 2003 )

From: Variation in ecosystem service values in response to land use changes in Zhifanggou watershed of Loess plateau: a comparative study

Ecosystem service

Forest

Grassland

Cropland

Water body

Barren lands

Gas regulation

264

60

38

68

0

Climate regulation

204

68

67

662

0

Water supply

241

60

45

1353

2

Soil formation and retention

294

147

110

65

2

Waste treatment

99

99

124

1372

1

Biodiversity protection

246

82

54

188

26

Food

8

23

75

15

1

Raw material

196

4

8

3

0

Recreation and culture

97

3

1

373

1

Total

1648

546

521

4099

32

  1. *The coefficients are adjusted to 1990 $ according to the exchange rate between RMB Yuan and $.