Table 8.1 Trend of pH of large river bodies in China from 2004 to 2014
a
Basin
Site
Slope
Trend
Songhua River
Zhaoqing
+0.029ÃÃÃ
Increase
Tongjiang
+0.058ÃÃÃ
Increase
Changchun
0.002
–
Heihe
+0.058ÃÃÃ
Increase
Baicheng
+0.030ÃÃÃ
Increase
Liaohe River
Xingan
0.003
–
Yingkou
0
–
Tieling
À0.023ÃÃ
Decrease
Dahuofang
+0.028ÃÃÃ
Increase
Liaoyang
+0.016ÃÃ
Increase
Dandong
À0.014ÃÃÃ
Decrease
Haihe River
Guoheqiao
À0.011Ã
Decrease
Liaocheng
À0.047ÃÃÃ
Decrease
Mentougou
À0.038ÃÃÃ
Decrease
Miyunkou
À0.008
–
Sanchakou
À0.050ÃÃÃ
Decrease
Shijiazhuang
À0.017ÃÃÃ
Decrease
Zhangjiakou
À0.056ÃÃÃ
Decrease
Huaihe River
Fengbu
0.011
–
Bunan
+0.009Ã
Increase
Huaibei
0.006
–
Xuyi
+0.041ÃÃÃ
Increase
Huainan
+0.035ÃÃÃ
Increase
Jieshou
À0.026ÃÃÃ
Decrease
Linyi
À0.014
–
Luyi
+0.036ÃÃÃ
Increase
Peizhou
0.01
–
Zaozhuang
À0.021ÃÃ
Decrease
Zhoukou
+0.036ÃÃÃ
Increase
Zhumadian
À0.060ÃÃÃ
Decrease
Pearl River
Changzhou
+0.011ÃÃÃ
Increase
Guigang
À0.016ÃÃ
Decrease
Laokou
À0.028ÃÃÃ
Decrease
Pingerguan
À0.009
–
Qixinggang
+0.020ÃÃÃ
Increase
Wuzhou
+0.014ÃÃ
Increase
Yangshuo
À0.041ÃÃÃ
Increase
Yellow River
Lanzhou
+0.014Ã
Increase
Zhongwei
À0.002
–
Wuhai
0.004
–
Baotou
À0.008Ã
Decrease
Xinzhou
À0.042ÃÃÃ
Decrease
(continued)
164
Q. Yu and L. Duan