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Table 4

Assessment of water resources carrying capacity of Dongting Lake

YearsThree OutletsFour RiversDongting Lake
Ouchi riverSongzi riverHudu riverXiangjiangZijiangYuanjiangLishuiEastWestSouth
2009 0.421 0.404 0.413 0.291 0.547 0.451 0.664 0.447 0.602 0.477 
2010 0.403 0.397 0.392 0.317 0.536 0.437 0.648 0.424 0.587 0.464 
2011 0.385 0.376 0.377 0.321 0.488 0.414 0.634 0.398 0.561 0.436 
2012 0.352 0.341 0.356 0.335 0.456 0.391 0.591 0.381 0.538 0.384 
2013 0.331 0.355 0.359 0.342 0.431 0.377 0.579 0.377 0.541 0.391 
2014 0.345 0.332 0.337 0.359 0.419 0.365 0.561 0.361 0.526 0.378 
2015 0.321 0.311 0.331 0.376 0.411 0.378 0.574 0.374 0.491 0.417 
2016 0.305 0.326 0.311 0.381 0.423 0.385 0.566 0.388 0.509 0.431 
2017 0.311 0.307 0.315 0.394 0.447 0.409 0.571 0.401 0.513 0.454 
2018 0.303 0.311 0.302 0.397 0.469 0.418 0.582 0.396 0.522 0.448 
Mean 0.348 0.346 0.349 0.351 0.463 0.403 0.597 0.395 0.539 0.428 
Grade IV IV IV IV III III II IV II III 
YearsThree OutletsFour RiversDongting Lake
Ouchi riverSongzi riverHudu riverXiangjiangZijiangYuanjiangLishuiEastWestSouth
2009 0.421 0.404 0.413 0.291 0.547 0.451 0.664 0.447 0.602 0.477 
2010 0.403 0.397 0.392 0.317 0.536 0.437 0.648 0.424 0.587 0.464 
2011 0.385 0.376 0.377 0.321 0.488 0.414 0.634 0.398 0.561 0.436 
2012 0.352 0.341 0.356 0.335 0.456 0.391 0.591 0.381 0.538 0.384 
2013 0.331 0.355 0.359 0.342 0.431 0.377 0.579 0.377 0.541 0.391 
2014 0.345 0.332 0.337 0.359 0.419 0.365 0.561 0.361 0.526 0.378 
2015 0.321 0.311 0.331 0.376 0.411 0.378 0.574 0.374 0.491 0.417 
2016 0.305 0.326 0.311 0.381 0.423 0.385 0.566 0.388 0.509 0.431 
2017 0.311 0.307 0.315 0.394 0.447 0.409 0.571 0.401 0.513 0.454 
2018 0.303 0.311 0.302 0.397 0.469 0.418 0.582 0.396 0.522 0.448 
Mean 0.348 0.346 0.349 0.351 0.463 0.403 0.597 0.395 0.539 0.428 
Grade IV IV IV IV III III II IV II III 
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