Image Processing Reference
In-Depth Information
Table 13.2
Land use changes (evolution matrix)
for Al-Ahsa oasis between 1987 and 2001
1987
2001
A
B
C
D
E
F
G
Ext.
Evol.
A
-
513.1
1.5
21.5
2,745.9
1,499.8
972.3
5,754.1
+5,325.8
B
1,193
-
0
82.4
4,480.4
184.3
1,654.1
6,520.7
+4,430.3
C
6.4
0
-
0
0
0
1.9
8.3
+2.0
D
13.7
1.4
0
-
197.9
0
0
215
−146.4
E
221.2
1,396
0
257.5
-
533.3
4,368.5
6,776.5
−8,063.4
F
14.1
22.1
0
0
193.1
-
827
1,056.3
−1,341.7
G
51.6
157.8
4.8
0
7,222.6
180.6
-
7,617.4
−206.4
Reg. 428.3 2,090.4 6.3 361.4 14,839.9 2,398 7,823.8
A: urban areas; B: agricultural lands; C: water bodies; D: hills; E: sabkha; F: urban planning; G: sand dunes
Ext. (extension): increase of the area; Reg. (Regression): decrease of the area; Evol. (evolution): extension-regression; unit : hectares
