Table 4 The proportion of habitat quality level at different periods in Shandong Province.

From: Spatial–temporal evolution characteristics of land use and habitat quality in Shandong Province, China

Level

Interval

1980

1990

2000

2010

2020

Grids/piece

Proportion/%

Grids/piece

Proportion/%

Grids/piece

Proportion/%

Grids/piece

Proportion/%

Grids/piece

Proportion/%

Low

[0–0.2)

30,458

12.67

32,714

13.61

34,306

14.28

37,740

15.70

42,167

17.44

Relative low

[0.2–0.4)

1103

0.46

1117

0.46

243

0.10

257

0.11

563

0.23

Medium

[0.4–0.6)

165,684

68.95

164,711

68.54

162,772

67.74

159,513

66.37

158,290

65.47

Relative high

[0.6–0.8)

15,100

6.28

15,334

6.38

15,365

6.39

14,628

6.09

9371

3.88

High

[0.8–1)

27,965

11.64

26,431

11.00

27,616

11.49

28,217

11.74

31,394

12.98

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