Geoscience Reference
In-Depth Information
totalitarian era. An agricultural function persists during the entire monitored period,
even if in the post-industrial phase other functions are also pushing through,
especially recreational ones.
The 1st type represents a polycentric core in the Krušné hory mountain basin
areas, where the energy industry and mining function are dominant. The 2nd type
represents the tableland of the Krušné hory mountains, a mostly desolate, marginal
area. After German-nationality population resettlement, it has been permanently
undersettled by people with weakened historical ties to the landscape. The 3rd type
is typical for an intensively used agricultural area with high soil quality, and suitable
for crop production.
7.6 Placing Monitored Issues into Wider Spatial and Time Scales
Altogether, a Czech land-use scientist can make use of an extensive set of land-use
data hardly to be found anywhere else in the world. It contains the size of land-use
categories in all cadastral units. For the sake of historical comparisons, so-called
Basic Territorial Units (BTUs) have been created; these contain data from 1845,
1945, 1990 and 2000. There are some 9.000 BTUs; their average size is ca. 8 km
2
.
Approximately 70% of them consist of one cadastral unit only; the rest are com-
posed of two or more, so that BTUs would not differ in total area by more than 1%
in all years observed.
The character of data allows us to analyse the current state, past development
and future prospects of individual land-use categories, as well as the total land-
use structure at local, regional and national levels (Table 7.2). For details about
methodology, see Bicík (1997, and others).
Table 7.2
Typology of changes of the macrostructure in BTUs of Czechia (Source: LUCC UK
Prague)
1845-1948
1948-1990
1990-2000
%ofBTUs,%ofarea
%ofBTUs,%ofarea
%ofBTUs,%ofarea
- - -
0.10
0.24
0.00
0.00
0.45
0.45
- - +
10.66
13.21
8.46
9.56
13.65
17.73
- + -
14.34
13.14
0.53
0.42
9.45
11.49
- + +
45.57
46.47
90.79
89.95
31.78
32.39
+ - -
7.97
7.65
0.01
0.00
8.71
8.19
+ - +
17.96
16.29
0.12
0.05
5.90
5.52
+ + -
3.06
2.55
0.07
0.01
24.58
21.14
+ + +
0.34
0.45
0.02
0.00
5.48
3.09
N
=
8.910 Area
=
78.868
N
=
8.910 Area
=
78.868
N
=
8.910 Area
=
78.868
Explanation: In column 1, there are three signs. First sign
=
size of agricultural land, second one
=
size of forest areas, third one
size of “other areas” (built up + water + remaining).
3
=
Search WWH ::
Custom Search