Table 6 Land use transfer matrix for Xi’an, 2015–2020 (unit: km2).

From: Study on the spatial and temporal evolution of ecosystem service value based on land use change in Xi’an City

Years

2020

Land use type

Grass land

Cultivated land

Construction land

Forest land

Water

Unused land

Total

2015

Grass land

139.485

19.837

5.052

37.049

0.144

0.820

62.902

Cultivated land

80.748

3210.188

447.038

100.798

14.178

0.000

642.761

Construction land

7.432

265.606

942.650

0.866

13.956

0.530

288.390

Forest land

69.481

133.553

2.056

4565.974

2.732

1.453

209.275

Water

0.619

7.091

0.607

0.921

23.870

0.000

9.239

Unused land

0.601

0.601

0.412

0.345

0.000

1.322

1.959

Total

158.881

426.688

455.165

139.979

31.011

2.803

1214.526