Table 9 Results of ecological detection.

From: Dynamic monitoring and analysis of factors influencing ecological environment quality in northern Anhui, China, based on the Google Earth Engine

Combination of factors

2001

2005

2010

2015

2020

X1 ∩  X2

N

N

N

N

Y

X1 ∩  X3

Y

N

Y

Y

Y

X1 ∩  X4

N

N

N

N

N

X1 ∩  X5

N

N

Y

Y

Y

X1 ∩  X6

N

N

N

N

Y

X2 ∩  X3

Y

N

Y

Y

Y

X2 ∩  X4

Y

N

Y

Y

N

X2 ∩  X5

Y

N

Y

Y

N

X2 ∩  X6

Y

N

Y

N

N

X3 ∩  X4

N

N

N

N

N

X3 ∩  X5

N

N

N

N

N

X3 ∩  X6

N

N

N

N

N

X4 ∩  X5

N

N

Y

Y

Y

X4 ∩  X6

N

N

N

N

N

X5 ∩  X6

N

N

N

N

N

  1. Y indicates that there is a significant difference between the two factors on RSEI; N indicates no significant difference.
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