Table 1. Data on the development of the degree of landscape fragmentation in Baden-Württemberg. The results include the effective mesh size (meff), the number of patches included in the calculation, the size of the largest remaining unfragmented patch, and the number of patches >100 km² and >50 km² (for comparison with other analyses; the last column “patches >50 km²” includes the patches >100 km²; e.m.r. = excluding municipal roads; i.m.r. = including municipal roads). Noise bands were excluded (upper half of the table) and included (lower half; for the years 1966, 1977, and 1989; data on traffic volume were only available for these three points in time), respectively. All values are based on the cutting-out (CUT) procedure.

Noise bands
/ Municipal
roads
Year
meff
Number of patches
(>100 m²)
Size of the largest patch
Patches >100 km² number (area / % of the state area)
Patches >50 km²
number (area / % of the state area)
without noise bands





e. m. r.
2004
19.58 km²
21 994
160.10 km²
8 (1106 km²/3.1%)
39 (3138 km²/8.8%)


1998
20.24 km²
13 945
161.00 km²
8 (1109 km²/3.1%)
40 (3209 km²/9.0%)


1989
20.51 km²
15 469
161.03 km²
8 (1110 km²/3.1%)
41 (3302 km²/9.2%)


1977
22.14 km²
15 079
163.40 km²
8 (1115 km²/3.1%)
49 (3846 km²/10.8%)


1966
24.26 km²
14 352
163.54 km²
11 (1522 km²/4.3%)
54 (4343 km²/12.1%)


1930
31.47 km²
11 558
221.87 km²
17 (2369 km²/6.6%)
83 (6703 km²/18.7%)

i. m. r.
2004
13.01 km²
40 923
142.30 km²
6 (764 km²/2.1%)
22 (1867 km²/5.2%)


1998
13.66 km²
30 835
146.70 km²
6 (752 km²/2.1%)
22 (1880 km²/5.3%)


1989
13.99 km²
34 096
146.83 km²
6 (753 km²/2.1%)
23 (1941 km²/5.4%)


1977
17.80 km²
33 664
161.39 km²
7 (973 km²/2.7%)
36 (2875 km²/8.0%)


1966
19.46 km²
34 525
161.49 km²
7 (975 km²/2.7%)
39 (3068 km²/8.6%)


1930
22.92 km²
32 049
206.20 km²
11 (1497 km²/4.2%)
52 (4067 km²/11.8%)
with noise bands





e. m. r.
1989
19.40 km²
11 958
160.84 km²
8 (1104 km²/3.1%)
38 (3084 km²/8.6%)


1977
21.67 km²
12 820
163.24 km²
8 (1112 km²/3.1%)
48 (3779 km²/10.6%)


1966
24.04 km²
12 913
161.49 km²
11 (1522 km²/4.3%)
54 (4340 km²/12.1%)

i. m. r.
1989
13.34 km²
27 575
146.25 km²
6 (751 km²/2.1%)
22 (1871 km²/5.2%)


1977
17.45 km²
29 682
161.22 km²
7 (972 km²/2.7%)
35 (2816 km²/7.9%)


1966
19.35 km²
31 981
161.49 km²
7 (975 km²/2.7%)
39 (3067 km²/8.6%)