5 Reality and Challenges of China’s Water Resources Management …
165
(a) The river valley in north China
(b) The river valley in south China
0
600
1200
1800
2400
3000
Songhuajiang Liaohe
Haihe
Huanghe Huaihe Northwestern
TWR (100 million cu.m)
River Valley
2013 2014 2015 2016 2017 2018
0
2000
4000
6000
8000
10000
12000
14000
Changjiang
Southeastern
Zhujiang
Southwestern
TWR (100 million cu.m)
River Valley
2013 2014 2015 2016 2017 2018
Fig. 5.3 The total amount of water resources of China river valley in 2013–2018
annual precipitation, while in northwest China, over 50% of the annual precipitation
takes place in summer, and winter precipitation represents a maximum of 10%.
In terms of future trend of water resources, a study by Wang and Long (2016)
predicts an increase in annual water resources in north China and northeast China
and a certain drop in southern provinces; in view of more frequent extreme weather
events, the seasonal variation of water resources is likely to rise, posing a major
challenge to the rational utilization.
The changing trend of China’s water resources may be encapsulated as follows:
the total quantity of water resources fluctuates around the annual average, with more
dramatic inter-annual and seasonal variations between regions. Amid rapid socieconomic development and growing demand for water, variations in temporal and
165
(a) The river valley in north China
(b) The river valley in south China
0
600
1200
1800
2400
3000
Songhuajiang Liaohe
Haihe
Huanghe Huaihe Northwestern
TWR (100 million cu.m)
River Valley
2013 2014 2015 2016 2017 2018
0
2000
4000
6000
8000
10000
12000
14000
Changjiang
Southeastern
Zhujiang
Southwestern
TWR (100 million cu.m)
River Valley
2013 2014 2015 2016 2017 2018
Fig. 5.3 The total amount of water resources of China river valley in 2013–2018
annual precipitation, while in northwest China, over 50% of the annual precipitation
takes place in summer, and winter precipitation represents a maximum of 10%.
In terms of future trend of water resources, a study by Wang and Long (2016)
predicts an increase in annual water resources in north China and northeast China
and a certain drop in southern provinces; in view of more frequent extreme weather
events, the seasonal variation of water resources is likely to rise, posing a major
challenge to the rational utilization.
The changing trend of China’s water resources may be encapsulated as follows:
the total quantity of water resources fluctuates around the annual average, with more
dramatic inter-annual and seasonal variations between regions. Amid rapid socieconomic development and growing demand for water, variations in temporal and