Table S1. Water level change rates of lakes/reservoirs in the MLYB during 2002~2017 (“*” indicates a significance level of 0.1 (P<0.1)). Mean Area Start level End level Rates No Lake name Campaigns inliers of Start date End date R^2 P (km2) (m) (m) (m/y) campaigns 1 Wu Lake1 64.844 113 7 2002/7/15 25.372 2017/9/8 22.642 -0.097 0.075 0.003* East Dongting 2 841.366 83 25 2003/10/14 25.932 2017/12/4 22.939 0.026 0.002 0.684 Lake South Dongting 3 435.826 253 14 2002/6/13 28.920 2017/6/18 29.203 0.009 0.001 0.675 Lake 4 Poyang Lake 2835.484 319 38 2002/6/17 14.260 2017/7/8 18.938 0.019 0.002 0.403 5 Shijiu Lake 183.709 45 21 2003/10/31 5.982 2017/11/20 5.616 0.108 0.062 0.099* 6 Chang Lake 123.993 161 5 2002/6/13 32.111 2017/5/22 32.713 -0.081 0.126 0.000* 7 Wu Lake 20.166 66 10 2002/7/9 19.198 2017/9/6 18.783 -0.035 0.014 0.351 8 Dong Lake 32.503 88 6 2002/9/17 20.860 2017/10/5 20.685 -0.026 0.078 0.009* 9 Chi Lake 41.705 101 5 2002/7/6 15.074 2017/8/6 15.346 -0.007 0.001 0.793 10 Hou Lake 14.460 66 4 2002/7/31 18.551 2017/4/19 18.343 0.001 0.000 0.909 11 Futou Lake 101.414 92 9 2002/7/9 19.417 2017/7/12 20.033 0.004 0.000 0.889 12 Liangzi Lake 298.496 152 22 2002/9/4 17.787 2017/9/6 17.779 0.004 0.000 0.803 13 Ci Lake 9.126 75 5 2002/6/20 16.882 2016/4/13 17.320 0.006 0.006 0.524 14 Lu Lake 45.395 38 9 2004/5/18 18.877 2017/4/19 19.539 0.039 0.022 0.378 15 Yandong Lake 5.040 17 5 2004/6/20 18.907 2017/3/21 18.847 0.034 0.156 0.117 16 Tangxun Lake 44.783 146 8 2002/7/9 19.481 2017/7/12 19.733 0.045 0.116 0.000* 17 Wang Lake 45.109 23 11 2004/3/10 11.859 2017/3/18 12.223 0.041 0.066 0.235 18 Ce Lake 9.085 79 6 2002/9/20 16.576 2017/10/3 16.486 0.069 0.121 0.002* 19 Sanchagang Lake 23.298 31 6 2004/11/6 15.981 2017/11/30 17.236 0.090 0.199 0.012* 20 Wangtian Lake 9.893 42 4 2003/10/25 15.901 2017/1/22 16.548 0.116 0.359 0.000* 21 Tuandun Lake 8.916 15 4 2004/5/18 18.523 2017/4/19 19.243 0.109 0.237 0.066* 22 Nan Lake 8.987 60 3 2002/7/31 20.417 2016/7/9 21.946 0.128 0.616 0.000* 23 Datong Lake 81.696 46 13 2002/6/13 27.653 2017/4/22 26.666 -0.013 0.018 0.377 24 Dong Lake1 21.021 69 5 2002/7/12 27.308 2017/10/9 27.336 -0.007 0.003 0.635 25 Lu Lake1 107.301 35 20 2003/3/7 26.261 2017/3/24 26.131 0.001 0.000 0.965 26 Tuxiao Lake 9.744 79 4 2002/7/31 32.470 2017/9/12 32.051 0.007 0.001 0.841 27 Noname Lake2 6.827 19 8 2003/10/26 34.617 2017/12/6 34.877 0.014 0.031 0.468 28 Taxi Lake 8.810 91 6 2002/6/13 27.137 2017/7/16 26.854 0.018 0.027 0.117 29 Xi Lake2 9.030 54 3 2002/7/31 32.480 2017/6/19 29.521 0.035 0.023 0.271 30 Daye Lake 60.204 110 4 2002/7/25 17.162 2017/7/10 16.807 0.037 0.016 0.185 31 Maoyan Lake 19.637 81 5 2002/7/31 32.487 2017/9/12 32.086 0.062 0.067 0.020* 32 Tuantou Lake 8.775 16 3 2003/11/2 27.879 2016/9/7 30.426 0.203 0.440 0.005* 33 Junhsan Lake 156.935 112 28 2002/6/23 16.032 2017/8/4 17.005 0.004 0.001 0.776 34 Yao Lake 18.551 67 3 2002/6/17 15.553 2017/4/14 16.370 0.053 0.126 0.003* 35 Chishan Lake 7.296 75 3 2002/10/13 9.624 2017/10/22 7.830 -0.102 0.353 0.000* 36 Nanyi Lake 148.602 72 11 2002/5/26 9.656 2017/5/5 6.845 -0.076 0.111 0.004* 37 Taibai Lake 31.529 36 10 2003/11/1 12.025 2017/10/30 11.794 0.003 0.000 0.906 38 Bo Lake 128.408 109 13 2002/6/17 12.319 2017/5/11 10.472 0.007 0.001 0.805 39 Chao Lake 786.813 260 37 2002/7/3 8.876 2017/7/4 7.129 0.014 0.010 0.101 40 Daguan Lake 262.028 137 21 2002/6/17 12.121 2017/6/9 10.708 0.021 0.007 0.336 41 Gucheng Lake 57.346 70 10 2002/10/13 7.595 2016/12/16 7.155 0.054 0.048 0.069* 42 Longgan Lake 321.311 66 20 2003/11/15 11.131 2017/12/25 10.185 0.062 0.047 0.082* 43 Baidang Lake 37.285 76 5 2002/10/16 9.079 2017/11/24 8.809 0.073 0.053 0.046* 44 Wuchang Lake 77.669 53 9 2004/3/12 9.276 2017/4/12 10.548 0.103 0.123 0.010* 45 Langan Lake 7.138 32 3 2002/9/17 12.872 2017/8/4 12.832 0.104 0.115 0.058* 46 Dongjiu Lake 8.295 56 2 2002/6/14 4.270 2017/3/9 3.803 -0.044 0.033 0.183 47 Cao Lake 9.338 64 4 2002/5/26 3.803 2017/6/28 2.555 -0.043 0.049 0.080* 48 Ge Lake 205.313 114 26 2002/6/14 2.356 2017/5/3 2.423 0.006 0.008 0.339 49 Tai Lake 2419.008 307 75 2002/6/27 2.490 2017/6/28 2.460 0.008 0.016 0.028* 50 Dianshan Lake 62.341 33 13 2003/11/5 1.808 2017/11/16 2.023 0.028 0.296 0.001* 51 Ezhendang Lake 5.179 54 4 2004/5/30 2.655 2017/6/28 2.402 0.030 0.101 0.019* 52 Xijiu Lake 11.116 18 3 2004/10/27 2.340 2017/11/18 3.165 0.059 0.122 0.155 Yahekou 53 38.964 53 9 2003/10/26 174.818 2017/12/4 174.399 -0.510 0.400 0.000* Reservoir 54 Wuling Reservoir 5.682 28 4 2002/10/25 61.025 2016/11/1 61.634 -0.368 0.133 0.056* 55 Shimen Reservoir 6.201 63 5 2003/1/25 85.210 2017/12/4 88.618 -0.285 0.055 0.064* Xionghe 56 6.025 40 3 2002/9/4 116.855 2017/12/4 123.649 -0.239 0.106 0.040* Reservoir Duangang 57 5.084 21 4 2004/5/24 51.978 2017/7/14 53.643 -0.104 0.037 0.406 Reservoir 58 Huiting Reservoir 17.575 19 6 2003/11/2 81.856 2017/11/5 84.585 0.096 0.017 0.592 Danjiangkou 59 431.874 99 19 2002/6/13 141.523 2017/6/19 157.227 0.375 0.059 0.016* Reservoir 60 Fushui Reservoir 45.378 35 7 2003/5/1 50.724 2017/5/15 51.886 0.046 0.004 0.722 Mingshan 61 6.723 15 2 2004/10/25 84.574 2017/10/3 87.545 0.166 0.102 0.246 Reservoir 62 Niuche Reservoir 6.017 77 5 2002/10/25 68.881 2017/11/1 69.341 0.475 0.340 0.000* Taifumiao 63 16.590 51 3 2002/10/25 96.391 2017/9/12 91.404 -0.513 0.312 0.000* Reservoir 64 Tieshan Reservoir 27.096 15 8 2004/3/13 86.646 2017/6/16 91.547 0.352 0.346 0.021* Dongjiang 65 110.645 32 10 2002/10/31 283.002 2017/12/2 271.345 0.849 0.171 0.019* Reservoir 66 Zhelin Reservoir 198.690 114 8 2002/11/23 62.047 2017/11/28 61.141 0.258 0.198 0.000* 67 Shaheji Reservoir 9.940 38 3 2003/2/17 36.650 2017/12/21 36.054 -0.127 0.259 0.001* Longhekou 68 37.894 92 5 2002/6/17 63.160 2017/7/6 60.656 0.257 0.204 0.000* Reservoir Taipinghu 69 49.021 64 7 2002/8/10 113.395 2017/8/29 113.745 0.412 0.319 0.000* Reservoir 70 Shahe Reservoir 7.929 17 6 2005/10/25 19.053 2017/7/29 18.449 0.099 0.166 0.105 Table S2.