Identification of Urban Functional Area by Using Multisource Geographic Data: A Case Study of Zhengzhou, China

Table 4

Statistical table of functional area.

Functional area	Plots	Area (km^2)
Transportation	330	260.19
Utilities	4	26.61
Commercial land	204	61.36
Residence	24	13.41
Warehouse	30	15.15
Green space	5	19.43
Transportation-utilities	31	21.1
Transportation-commercial	532	345.23
Transportation-residence	103	46.39
Transportation-warehouse	27	17.68
Transportation-green space	7	67.86
Utilities-commercial land	10	5.56
Utilities-residence	5	2.2
Utilities-green space	1	0.17
Residence-commercial land	401	90.61
Residence-warehouse	4	0.76
Commercial-warehouse	26	20.17
Green space-warehouse	1	0.3