Table 7 Comprehensive assessment value of WRCC of Anhui Province calculated by GM(1, 1) model.

From: Evaluation of regional water resources carrying capacity in China based on variable weight model and grey-markov model: a case study of Anhui province

Years

Actual value

GM(1, 1) predicted value

Relative value

2010

0.4905

0.4905

1.0000

2011

0.2848

0.4380

0.6502

2012

0.4244

0.4581

0.9264

2013

0.4495

0.4791

0.9382

2014

0.6040

0.5010

1.2055

2015

0.6426

0.5240

1.2263

2016

0.6442

0.5480

1.1755

2017

0.6123

0.5731

1.0684

2018

0.6047

0.5994

1.0089

2019

0.4692

0.6268

0.7485