Landscape Ecological Stability in Horka pri Poprade, Svabovce, and Straze pod Tatrami Cadastral Areas

In the Slovak Republic is EIA documentation executed on the basis of landscape protection and landscape ecological stability preservation. Landscape ecological stability coefficients in cadastral areas were evaluated according two mentioned methodologies. At first, they were evaluated particularly and thereafter together as one unit. Particular results are as follows:

Horka pri Poprade:

CESj

= 0.76

CES2 =

2.32

Svabovce:

CESj

= 0.51

CES2 =

1.68

Straze pod Tatrami:

CESj

= 0.08

CES2 =

1.17

When evaluating landscape ecological stability, the choric aspect should be considered also; this means horizontal relationships between particular cadastre areas, because landscape evaluated only from the topical aspect represents land­scape as a discontinuous system. Thereafter, particular cadastral areas with differ­ent degrees of ecological stability are evaluated as separate segments regardless of their horizontal relationships with adjacent cadastral areas. Especially, horizontal relationships affect in a high degree the value of landscape ecological stability.

Table 7.3 Representation of individual land structure elements and values of ecological stability coefficients in Horka pri Poprade, Svabovce, and Straze pod Tatrami Cadastral Areas

Component of land structure

Area (ha)

Area (%)

CESj

CES2

Built-up areas

87.21

2.85

E

0

Permanent grassland

478.52

15.63

D

2

Gardens areas

112.01

3.66

D

2

Arable land (large-area)

1,664.58

54.37

E

1

Industrial area

11.98

0.39

E

0

Nonforest vegetation (area)

74.71

2.44

B

2

Nonforest vegetation (line)

7.6

0.25

B

2

Forests

512.69

16.75

B

3

Roads

69.09

2.26

E

0

Railway

3.54

0.12

E

0

Nonforest vegetation by the river

21.2

0.69

B

3

Agricultural dung-pit

0.33

0.01

E

0

Former sandpit

1.6

0.03

E

0

Streams

11.44

0.37

A

4

Playing field

2.7

0.07

E

0

Romany settlement

2.1

0.07

E

0

Cemetery

1.38

0.04

E

1

Total

3,061.33

100.00

0.4

1.52

CES1, degree of ecological stability; CES2, degree of ecological stability

So, finally, the cadastre areas were evaluated together as one unit (Table 7.3): the first coefficient of ecological stability, which regards the total area of secondary landscape structure elements and also their ecological stability degree, reaches a value of 0.4, which means that this cadastral area is disrupted landscape type. When specific structure is deliberate, the coefficient of ecological stability reaches 1.52, which means that this cadastral area is classified as landscape with low ecological stability.

According to the degree of human extended intensity to the landscape and the ability of landscape to regenerate to the previous landscape condition (Ruzicka et al. 1978), this cadastral area represents a disrupted landscape, which rises from antirational landscape use and impairing of natural resources; hence, human eco­nomic activities are negatively affecting its natural conditions. Disturbance of biological equilibrium is evident, so there are impending changes in secondary landscape structure, but its regeneration may still be possible by natural-biological or technical means.