1、Heilongjiang mainstream interval
2、Ergun River
3、Ussuri River
4、The mainstream of the lower Yellow River
5、Yellow River Estuary to Longmen District
6、Yellow River Lanzhou to Hekou Section
7、The main stream interval of the Yellow River above Lanzhou
8、The dry and middle reaches of the Huaihe River
9、Main stream of the lower reaches of the Yangtze River
10、The middle reaches of the Yangtze River
11、Jialing River mainstream section
12、The main stream interval of the Minjiang River and the Weihe River
13、Wujiang main stream area
14、Section of main stream of Red River and Xun River
15、Main stream interval of Nanpanjiang and Beipanjiang
16、The main stream interval of Zuojiang, Youjiang and Yujiang
17、Yuanjiang mainstream interval
18、Main stream section of Lancang River
19、Yibin to Yichang section of Yangtze River
Note
The red line in the figure indicates: the water production area type boundary
The blue line in the figure indicates: the watershed boundary
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