Table 4 Linear relationships between UHI intensity and influencing factors.

From: Research on the coupling mechanism between green space morphology and the urban heat island effect based on machine learning: a case study of Dali City, China

UHI

1

             

Altitude

−0.783***

1

            

NDVI

−0.079***

−0.401***

1

           

NDBI

 0.010

−0.100

−0.015

1

          

Building

−0.033***

−0.141***

−0.057*

0.132***

1

         

Population

0.011

−0.076*

−0.082*

0.087*

0.216

1 

        

Road

0.069

−0.089

−0.100**

0.119**

0.056

0.004

1

       

Core

−0.016**

−0.054*

−0.152***

0.100*

−0.126

0.233*** 

−0.158*** 

1

      

Islet

−0.033***

−0.066**

0.109

0.045*

−0.169*** 

−0.224*** 

0.121** 

−0.039

1

     

Perforation

0.013

−0.064

0.033

0.116**

−0.155*

0.045

−0.171*** 

0.071

0.026

1

    

Bridge

- 0.009***

−0.104**

0.158

0.010

−0.229***

0.011*

−0.028

0.053

0.002**

0.113

1

   

Branch

−0.010***

−0.085***

0.040

0.043

−0.216

−0.048***

−0.023

0.114

−0.068***

0.096

0.010***

1

  

Edge

−0.001***

−0.066***

0.009

−0.048

−0.100***

0.086

−0.048

−0.062

0.013*

−0.023

−0.120*** 

−0.285*** 

1

 

Loop

0.008**

0.012**

−0.091

0.019

−0.199***

0.060

−0.111*

−0.004

−0.163***

0.033

−0.106***

−0.003**

−0.065

1

 

UHI

 Altitude 

NDVI 

NDBI

Building 

Population 

Road

Core 

Isle

Perforation

Bridge

Branch 

Edge 

Loop

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