Period |
Area/km2
|
Area change rate/% |
|
|
|
|
|
|
|
Addition |
Loss |
Retention |
Change |
Increasing rate |
Attrition
rate |
Retention rate |
Total |
LIG |
111055 |
28374.16 |
647234 |
82680.79 |
16.44 |
4.20 |
95.81 |
108.05 |
LGM |
98509.7 |
42620.18 |
632988 |
55889.52 |
14.58 |
6.31 |
93.70 |
101.97 |
MID |
119693.5 |
29653.95 |
645954.2 |
90039.55 |
17.72 |
4.39 |
95.62 |
108.95 |
50s-126 |
32884.35 |
121586.2 |
553949 |
-88701.9 |
4.87 |
18.00 |
82.00 |
68.87 |
50s-245 |
77403.53 |
138390.2 |
537160.6 |
-60986.6 |
11.46 |
20.49 |
79.51 |
70.49 |
50s-370 |
61542.51 |
159033.9 |
516485.6 |
-97491.4 |
9.11 |
23.54 |
76.45 |
62.02 |
50s-585 |
47145.94 |
203047.5 |
472503.4 |
-155902 |
6.98 |
30.06 |
69.94 |
46.87 |
70s-126 |
48964.43 |
88028.21 |
587522.6 |
-39063.8 |
7.25 |
13.03 |
86.97 |
81.19 |
70s-245 |
99629.48 |
145428.4 |
530038.2 |
-45798.9 |
14.75 |
21.53 |
78.46 |
71.68 |
70s-370 |
78531.53 |
243828.3 |
431704.5 |
-165297 |
11.62 |
36.09 |
63.90 |
39.44 |
70s-585 |
113049.2 |
196851.1 |
478699.7 |
-83801.9 |
16.73 |
29.14 |
70.86 |
58.46 |