Table 1.
Changes in the number and area of all lakes >1 km2 in China between the mid-1980s and 2015.
Lake number | Lake area (km2) | Lake number | Lake area | Number of | Number of | Change in | Change in lake | Change in | Change in | ||
---|---|---|---|---|---|---|---|---|---|---|---|
Region | Lake class | in mid-1980s | in mid-1980s | in 2015 | (km2) in 2015 | dried-up lakes | new lakes | lake number | number (%) | lake area | lake area (%) |
National | 1–10 | 2115 | 5674.1 | 2072 | 5369.7 | 168 | 125 | −43 | −2.0 | −304.4 | −5.4 |
10–50 | 411 | 7165.6 | 417 | 8493.4 | 7 | 13 | 6 | 1.5 | 1327.8 | 18.5 | |
>50 | 273 | 62 415.5 | 267 | 66 624.2 | 6 | 0 | −6 | −2.2 | 4208.7 | 6.7 | |
All | 2799 | 75 255.2 | 2756 | 80 487.3 | 181 | 138 | −43 | −1.5 | 5232.1 | 7.0 | |
Eastern Plain | 1–10 | 483 | 1572.8 | 481 | 1330.8 | 2 | 0 | −2 | −0.4 | −242.0 | −15.4 |
10–50 | 89 | 1916.5 | 88 | 1755.6 | 1 | 0 | −1 | −1.1 | −160.9 | −8.4 | |
>50 | 49 | 15 894.5 | 49 | 15 076.0 | 0 | 0 | 0 | 0 | −818.5 | −5.1 | |
All | 621 | 19 383.9 | 618 | 18 162.4 | 3 | 0 | −3 | −0.5 | −1221.5 | −6.3 | |
Mong-Xin Plateau | 1–10 | 478 | 1260.4 | 373 | 824.6 | 110 | 5 | −105 | −22.0 | −435.7 | −34.6 |
10–50 | 30 | 463.2 | 28 | 485.9 | 5 | 3 | −2 | −6.7 | 22.7 | 4.9 | |
>50 | 23 | 6449.6 | 19 | 5933.0 | 4 | 0 | −4 | −17.4 | −516.6 | −8.0 | |
All | 531 | 8173.1 | 420 | 7243.6 | 119 | 8 | −111 | −20.9 | −929.6 | −11.4 | |
Northeast Plain | 1–10 | 485 | 1251.5 | 440 | 714.3 | 45 | 0 | −45 | −9.3 | −537.2 | −42.9 |
10–50 | 56 | 948.9 | 55 | 697.9 | 1 | 0 | −1 | −1.8 | −251.0 | −26.5 | |
>50 | 14 | 5844.8 | 14 | 5786.4 | 0 | 0 | 0 | 0 | −58.4 | −1.0 | |
All | 555 | 8045.2 | 509 | 7198.6 | 46 | 0 | −46 | −8.3 | −846.6 | −10.5 | |
Yun-Gui Plateau | 1–10 | 15 | 46.1 | 13 | 44.0 | 2 | 0 | −2 | −13.3 | −2.1 | −4.6 |
10–50 | 8 | 192.3 | 8 | 179.1 | 0 | 0 | 0 | 0 | −13.2 | −6.9 | |
>50 | 4 | 818.5 | 4 | 829.1 | 0 | 0 | 0 | 0 | 10.6 | 1.3 | |
All | 27 | 1056.9 | 25 | 1052.2 | 2 | 0 | −2 | −7.4 | −4.7 | −0.4 | |
Tibetan Plateau | 1–10 | 654 | 1543.3 | 765 | 2456.0 | 9 | 120 | 111 | 17.0 | 912.6 | 59.1 |
10–50 | 228 | 3644.6 | 238 | 5374.8 | 0 | 10 | 10 | 4.4 | 1730.2 | 47.5 | |
>50 | 183 | 33 408.1 | 181 | 38 999.7 | 2 | 0 | −2 | −1.1 | 5591.7 | 16.7 | |
All | 1065 | 38 596.0 | 1184 | 46 830.5 | 11 | 130 | 119 | 11.2 | 8234.5 | 21.3 |