2012

2014

2015

Species number (total)

205

76

215

Av. plant cover [%]

69.58

96.65

83.66

Av. cover of IAS [%]

27.71

2.97

3.77

Cover of target species [%]

2.7

0.38

12.57

Cov^*

n^**

Cov^*

n^**

Cov^*

n^**

Invasive alien plant species

Acer negundo

0.04

4

0.55

9

0.28

16

Ailanthus altissima

0.04

6

0.11

2

0.06

10

Bunias orientalis

0.31

4

0

0

0.32

7

Fallopia japonica

0.03

1

0

0

0

0

Impatiens glandulifera

3.55

15

0

0

0.33

8

Impatiens parviflora

7.64

40

1.98

11

0.26

5

Robinia pseudoacacia

0.39

11

0.22

4

0.35

16

Rudbeckia laciniata

0.83

3

0

0

0

0

Solidago gigantea

14.88

40

0.11

2

2.14

40

Target species

Alnus glutinosa

0.02

2

0

0

0

0

Alnus incana

1.55

19

0.38

6

0.05

5

Cardamine amara

0

0

0

0

0.02

2

Cirsium oleraceum

0.01

1

0

0

0.01

1

Fraxinus excelsior

0.51

30

0

0

0.13

6

Humulus lupulus

0.05

3

0

0

0

0

Populus nigra

0.46

2

0

0

10.96

40

Prunus padus

0.04

3

0

0

0.07

2

Salix alba

0.07

3

0

0

0.94

19