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The reserves are distributed all over Switzerland with a focus in the Alps (fig 1). This allows statements to be made about the widely distributed forest types (table 1). The main focus is directed on forest types in which forests are managed – outside of the reserves – or on forests for which Switzerland bears a special responsibility in an international context. Reserves with existing data series were the preferred choice. Reserves with a mosaic-like pattern of strongly differing forest types were not considered because they are unsuitable for monitoring. We conduct intensive monitoring in 15 reserves.


 

Table 1: Natural forest reserves with intensive and extensive monitoring:

Italics: Reserves which were not monitored by the ETH.

“Type” denotes the forest type which is to be captured in a particular reserve. mp = mountain pine forests, be= beech forests, sp= spruce forests, sc= scots pine forests, st = stone pine forest, sp-fi = spruce-fir forests, la-st= larch-stone pine forests, fi-be= fir-beech forests, ot= other forests.

a = adjustment with existing sampling inventory necessary.
b = final decision after inspection
c = full callipering instead of sampling inventory
d = new permanent plots
e = Reserves with monitoring in several forest types are listed several times
f = only natural forest reserves without special forest reserves

Reserve name

Can­ton

Start moni-
toring

Reserve area (ha)f

Type

Monitoring
intensity

Planned number sample plots

Number of permanent plots

Area permanent plots (ha)

Full cruises

Year next inventory

La Niva

GR

2015

52

mp

intensive

62

2

0.5

 

2025

Nationalpark

GR

1977

4'800

mp

extensive

 

13

12.9

 

2025

Seeliwald

OW

1972

79

mp

intensive

63

4

3.3

 

2026

Bois de Chênes

VD

1969

83

be

intensive

83

11

7.1

 

2027

Sihlwald

ZH

1994

841

be

intensive

229

1

11.0

 

2028

Adenberg

ZH

1970

5

be

extensive

 

4

1.8

X

2022

Bannhalde

ZH

1972

2.5

be

extensive

 

1

0.5

 

2024

Krummenlinden

AG

1962

3

be

extensive

 

2

0.5

 

2021

Langgraben

ZH

1972

4.3

be

extensive

 

2

0.8

 

2024

Bettlachstock

SO

1995

414

be

extensive

126

1

1.3

 

2024

Fürstenhalde

ZH

1970

17

be

extensive

 

2

1.1

 

2022

Girstel

ZH

1957

10

be

extensive

 

13

2.8

 

2027

Mettlenrain-Höchi

BE

2015

72

be

extensive

40

 

 

 

2026

Montricher

VD

2001

115

be

extensive

29

 

 

 

2023

Rinsberg

ZH

1972

19

be

extensive

 

1

0.7

 

2026

Strassberg

ZH

1975

6.3

be

extensive

 

3

1.7

 

2024

Tariche Bois Banal

JU

1972

13

be

extensive

 

5

1.6

Xc

2024

Tariche Haute Côte

JU

1972

9

be

extensive

 

3

1.5

Xc

2022

Tutschgenhalden

ZH

1970

66

be

extensive

 

3

1.3

 

2023

Unterwilerberg

AG

1962

59

be

extensive

 

3

0.3

Xc

2027

Vorm Stein

ZH

1970

10

be

extensive

 

3

0.9

 

2022

Weidwald

AG

1963

5

be

extensive

 

3

1.5

 

2021

Bödmerenwald

SZ

1972

341

sp

intensive

93a

4

4.8

 

2028

Scatlè

GR

1964

9

sp

intensive

 

2

6.4

 

2028

Tiefenwald

GL

-

36

sp

extensiveb

32

1d

1.0

Xb

2023

Uaul Prau Nausch

GR

1997

66

sp

extensive

21

1

1.0

 

2024

Derborence

VS

1957

22

sp-fi

intensive

15

6.5

 

Xc

2021

Arena

TI

-

177

sp-fi, fi-be

intensive

124

2

2.0

 2021

Grand Paine - auto Chia

FR

-

62

sp-fi

extensiveb

47

1d

0.5

 

2021

Hobacher/Salzbrunnen

SZ

-

194

sp-fi

extensiveb

40

 

  2023

Val Cama - Val Leggia

GR

2009

1200

sp-fi, fi-be

intensive

60

2

1.0

 

2019

Pfynwald

VS

1957

994

sc

intensive

70

4

0.8

X

2028

Weidel

ZH

1975

0.6

sc

extensive

 

1

0.6

 

2024

Aletschwald

VS

1933

410

la-st

intensive

107

3d

1.5

X

2023

Selvasecca

TI

2014

76

la-st

extensive

30

 

  2024

Tamangur

GR

1905

86

la-st

extensive

34

3d

1.9

 

2023

Murgtal

SG

2015

347

st

extensive

 

4d

1.3

 

2026

Combe Biosse

NE

1986

58

fi-be

intensive

116

11

5.0

 

2020

Leihubelwald

OW

1972

24

fi-be, sp-fi

intensive

 

8

2.4

Xc

2021

Arena

TI

-

177

fi-be, sp-fi

intensive

124

2d

2.0

 

2020

Kreisalpen

SG

-

60

fi-be

extensiveb

23

   

2022

Tösswald

ZH

-

47

fi-be

extensiveb

38

   

2020

Val Cama - Val Leggia

GR

2009

1200

fi-be, sp-fi

intensive

60

 

 

 

2019

Les Follatères

VS

1969

396

ot

intensive

76

6

2.1

 

2025

Josenwald

SG

1976

85

ot, be

intensive

87

7

2.5

 

2019

Hüntwangenhalde

ZH

1970

2.5

ot

extensive

 

1

0.8

 

2027

Seldenhalde/Wutach

SH

1972

4.5

ot

extensive

 

6

2.0

 

2024

St. JeanBE19579otextensive 62.1Xc2027

Steibruchhau

SH

1979

5.2

ot

extensive

 

3

1.0

 

2026

Thurspitz-Rheinhölzli

ZH

1977

25

ot

extensive

 

1

1.2

 

2019

Umikerschachen

AG

1962

6

ot

extensive

 

2

1.1

 

2019