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Discrete Dynamics in Nature and Society
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Discrete Dynamics in Nature and Society
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2020
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Article
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Tab 2
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Research Article
Analysis and Prediction of the Coupling Coordination Relationship between Tourism and Air Environment: Yangtze River Economic Zone in China as Example
Table 2
Evaluation grade of the comprehensive development degree.
Value
c
i
≥ 0.75
0.50 ≤
c
i
< 0.75
0.25 ≤
c
i
< 0.50
c
i
< 0.25
Grade
Excellent
Good
Fair
Poor