Table 4 Overall degree of hydrological alteration in the Tarim River for the RI impact and the CI impact.

From: Quantitative Assessment of Hydrological Alteration Caused by Irrigation Projects in the Tarim River basin, China

 

hydrologic station

Degree of Hydrologic Alteration (%)

ODHA

IODHA

Group 1

Group 2

Group 3

Group 4

Group 5

RI Impact

Alar

65.3

41.8

32.1

50.2

47.1

52.8(M)

60.3(H)

(1973–1989)

Xinquman

48.8

35.0

51.5

55.2

55.9

46.4(M)

55.4(M)

CI Impact

Alar

75.1

73.5

34.5

28.8

49.3

66.2(H)

68.7(H)

(1995–2014)

Xinquman

74.7

33.7

65.0

32.8

71.9

58.0(M)

61.8(H)

  1. Note: ODHA represents the overall degree of hydrological alteration estimated with Equation (3) and IODHA is for the improved overall degree of hydrological alteration estimated with Equation (4). For each group, the degree of hydrologic alteration (DHA) was estimated using Equation (3).
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