Journal of Resources and Ecology ›› 2022, Vol. 13 ›› Issue (6): 999-1008.DOI: 10.5814/j.issn.1674-764x.2022.06.005
• Resource Use and Resource Economy • Previous Articles Next Articles
LANG Tingting1,2(), YANG Yanzhao1,2,3,*(
), ZHANG Chao1,2, LIU Ying1,2
Received:
2021-05-26
Accepted:
2022-01-05
Online:
2022-11-30
Published:
2022-10-12
Contact:
YANG Yanzhao
About author:
LANG Tingting, E-mail: langtt.19b@igsnrr.ac.cn
Supported by:
LANG Tingting, YANG Yanzhao, ZHANG Chao, LIU Ying. Assessment of the Water Resources Carrying Capacity in the Great Dunhuang Region[J]. Journal of Resources and Ecology, 2022, 13(6): 999-1008.
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URL: http://www.jorae.cn/EN/10.5814/j.issn.1674-764x.2022.06.005
City/County | Available water resources | Red lines (limit) of water consumption | |||||
---|---|---|---|---|---|---|---|
Normal years | Dry years | Extremely dry years | 2015 | 2020 | 2030 | ||
ADS | 0.3 | 0.3 | 0.3 | 0.2 | 0.2 | 0.2 | |
SB | 0.42 | 0.42 | 0.42 | 0.47 | 0.47 | 0.47 | |
GZ | 5.31 | 4.57 | 3.80 | 4.60 | 3.54 | 3.71 | |
DH | 3.81 | 3.54 | 3.34 | 3.54 | 2.75 | 2.89 | |
The Great Dunhuang Region | 9.84 | 8.83 | 7.86 | 8.81 | 6.96 | 7.27 |
Table 1 The available water resources and water consumption red lines of each county and city under the different water supply conditions (Unit: 108 m3)
City/County | Available water resources | Red lines (limit) of water consumption | |||||
---|---|---|---|---|---|---|---|
Normal years | Dry years | Extremely dry years | 2015 | 2020 | 2030 | ||
ADS | 0.3 | 0.3 | 0.3 | 0.2 | 0.2 | 0.2 | |
SB | 0.42 | 0.42 | 0.42 | 0.47 | 0.47 | 0.47 | |
GZ | 5.31 | 4.57 | 3.80 | 4.60 | 3.54 | 3.71 | |
DH | 3.81 | 3.54 | 3.34 | 3.54 | 2.75 | 2.89 | |
The Great Dunhuang Region | 9.84 | 8.83 | 7.86 | 8.81 | 6.96 | 7.27 |
Carrying status | Surplus | Balanced | Overload | |||
---|---|---|---|---|---|---|
Rich and surplus | Surplus | Balanced | Critical overload | Overload | Severe overload | |
Carrying index | <0.5 | 0.5-0.75 | 0.75-1 | 1-1.25 | 1.25-1.5 | >1.5 |
Table 2 The classification standard of water resources carrying index
Carrying status | Surplus | Balanced | Overload | |||
---|---|---|---|---|---|---|
Rich and surplus | Surplus | Balanced | Critical overload | Overload | Severe overload | |
Carrying index | <0.5 | 0.5-0.75 | 0.75-1 | 1-1.25 | 1.25-1.5 | >1.5 |
City/ County | Per capita comprehensive water consumption (m3) | Per capita domestic water consumption (L d-1) | Per 10000 Yuan GDP water consumption (m3) |
---|---|---|---|
AKS | 1553 | 116 | 191 |
SB | 2266 | 138 | 252 |
GZ | 2760 | 141 | 570 |
DH | 1669 | 124 | 315 |
GDR | 2137 | 134 | 399 |
Table 3 The water use efficiency of the GDR in 2017
City/ County | Per capita comprehensive water consumption (m3) | Per capita domestic water consumption (L d-1) | Per 10000 Yuan GDP water consumption (m3) |
---|---|---|---|
AKS | 1553 | 116 | 191 |
SB | 2266 | 138 | 252 |
GZ | 2760 | 141 | 570 |
DH | 1669 | 124 | 315 |
GDR | 2137 | 134 | 399 |
City/ County | Current population | Normal years | Dry years | Extremely dry years |
---|---|---|---|---|
AKS | 1.06 | 1.93 | 1.93 | 1.93 |
SB | 1.53 | 1.86 | 1.86 | 1.86 |
GZ | 14.96 | 19.26 | 16.54 | 13.76 |
DH | 19.03 | 22.82 | 21.21 | 20.01 |
Total | 36.58 | 45.87 | 41.54 | 37.56 |
Table 4 The WRCC under different water supply levels in each city and county in 2017 (Unit: 104 people)
City/ County | Current population | Normal years | Dry years | Extremely dry years |
---|---|---|---|---|
AKS | 1.06 | 1.93 | 1.93 | 1.93 |
SB | 1.53 | 1.86 | 1.86 | 1.86 |
GZ | 14.96 | 19.26 | 16.54 | 13.76 |
DH | 19.03 | 22.82 | 21.21 | 20.01 |
Total | 36.58 | 45.87 | 41.54 | 37.56 |
City/County | Current population | WRCC | ||
---|---|---|---|---|
2017 | 2020 | 2030 | ||
AKS | 1.06 | 1.29 | 1.29 | 1.29 |
SB | 1.53 | 2.07 | 2.07 | 2.07 |
GZ | 14.96 | 16.67 | 12.83 | 13.44 |
DH | 19.03 | 21.21 | 16.47 | 17.31 |
GDR | 36.58 | 41.24 | 32.66 | 34.12 |
Table 5 The WRCC under policy constraints in 2017, 2020 and 2030 (Unit: 104 people)
City/County | Current population | WRCC | ||
---|---|---|---|---|
2017 | 2020 | 2030 | ||
AKS | 1.06 | 1.29 | 1.29 | 1.29 |
SB | 1.53 | 2.07 | 2.07 | 2.07 |
GZ | 14.96 | 16.67 | 12.83 | 13.44 |
DH | 19.03 | 21.21 | 16.47 | 17.31 |
GDR | 36.58 | 41.24 | 32.66 | 34.12 |
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