Analysis on the Spatio-Temporal Characteristics of Urban Expansion and the Complex Driving Mechanism: Taking the Pearl River Delta Urban Agglomeration as a Case

Table 2

Sources of urban expansion land in the Pearl River Delta urban agglomeration during 2008–2015 (km²).

Region	Farmland	Forest land	Grassland	Water	Unused land	Sum
Guangzhou	56.81	23.11	2.64	4.94	0	87.5
Shenzhen	8.36	14.96	0.72	2.25	0	26.28
Zhuhai	11.67	4.5	1.17	33.91	0	51.25
Foshan	60.29	15.56	0.24	13.6	0	89.69
Jiangmen	39.73	33.61	2.29	7.5	0.36	83.48
Zhaoqing	10.17	18	0.7	3.13	0	32
Huizhou	25.26	25.38	1.76	1.96	0	54.35
Dongguan	21.51	16.43	2.54	6.9	0	47.37
Zhongshan	13.88	5.67	0	7.07	0	26.61
PRD	247.67	157.21	12.05	81.24	0.36	498.54