Spatial and Temporal Pattern Analysis of Land Use in Yangtze River Delta Based on Remote Sensing and GIS in Intelligent Environment

Table 1

Error matrix of TM image surveillance classification in 2015.

Data	1	2	3	4	5	6	7	8	9	Line total	User accuracy
1	18	0	0	0	0	0	0	0	0	18	100
2	0	35	5	0	0	0	0	0	0	40	93.40
3	0	4	12	0	0	0	0	0	0	16	84.43
4	0	0	0	67	0	0	0	0	3	70	94.32
5	0	0	0	0	123	6	0	0	0	129	95.25
6	0	0	0	0	5	46	0	0	0	51	87.14
7	0	0	0	0	0	0	12	2	0	14	91.10
8	0	0	0	0	0	0	2	6	0	8	89.90
9	0	0	0	8	0	0	0	0	35	43	83.04
Column total	18	39	17	75	128	52	14	8	38
Producer’s accuracy	100	95.46	78.78	87.65	95.68	85.54	92.13	88.82	87.78		Kappa index = 0.92

Index note: 1 represents water area, 2 represents residential area, 3 represents industrial and mining land, 4 represents bare land, 5 represents plain desert grassland, 6 represents mountain desert grassland, 7 represents cultivated land, 8 represents woodland, and 9 represents surrounding land.