Comprehensive Assessment of the Effect of Urban Built-Up Land Expansion and Climate Change on Net Primary Productivity

Table 1

Land transfer matrix between 2000 and 2015 (km²).

2000	2015
	Cropland	Forest	Grassland	Water area	Built-up land	Unused land	Total
Cropland	4475.95	30.89	33.07	103.77	367.51	0.14	5011.32
Forest	32.37	709.01	9.20	1.89	11.27	0.16	763.89
Grassland	31.52	11.08	645.12	1.36	3.32	0.00	692.39
Water area	19.99	2.06	0.47	166.54	11.69	0.00	200.76
Built-up land	43.28	0.89	0.87	1.84	801.72	0.03	848.62
Unused land	0.09	0.15	0.05	0.10	0.43	2.61	3.42
Total	4603.19	754.06	688.77	275.50	1195.94	2.94	7520.41