evapotranspiration precipitation

(1)

C ^LIM A ^GRO

UNDERSTANDING THE ANTHROPOGENIC AND NATURAL DRIVERS OF WATER BALANCE IN CHANGING ALPINE

GRASSLANDS USING A NETWORK OF SMALL - SCALE LYSIMETERS

Georg Frenck, Klaus Obojes, Georg Leitinger, Ulrike Tappeiner & Erich Tasser

TERENO conference 29/10‐ 02/10.14 Bonn

(2)

S ^{ETTING THE} S ^CENE

(3)

3

T

HE HYDROLOGICAL CYCLE OF THE

A

^LPS



AND ITS ROLE IN

E

UROPE FRESHWATER SUPPLY

sources:

Roder, 2009

Weingartner et al . 2007

(4)

T

HE HYDROLOGICAL CYCLE OF THE

A

^LPS



AND ITS VULNERABILITY TO CLIMATIC CHANGE

meteorology climate topography water use biosphere

hydrological cycle

water availability

climate warming changes in:

precipitation regimes, snow cover, glacier storage

land-use changes

(5)

5

C

^LIMATE

C

HANGE IN THE

A

^LPS



TEMPERATURE

(6)

C

^LIMATE

C

HANGE IN THE

A

^LPS

 P

RECEPITATION

s

a

w

(7)

7

CLIMAGRO

(8)

T

^HE

L

^YSIMETER

A

^PPROACH

 E

^COSYSTEM

W

^ATER

B

^ALANCE

precipitation

evapotranspiration

(9)

9

T

^HE

L

^YSIMETER

A

^PPROACH

 S

^MALL

-S

^CALE

L

^YSIMETERS

(10)

C

^LIM

A

^GRO

 I

NSTALLATION

(11)

11

C

^LIM

A

^GRO

 L

^OWER

B

^OUNDARY

C

^ONTROL

reference lysimeter

(12)

C

^LIM

A

^GRO

 E

XPERIMENTAL

D

^ESIGN

scale1:100

1/1M 2/1S

3/1I

4/1I

5/1S 6/1M

1/2S 2/2I

3/2M

4/2S

5/2I 6/2M FB1

FB2

FB5 FB3

FB4 Log1

Log2

Log3

Log4 6/3S

1/4M

1/3S 2/3M

3/3L

4/3M

5/3S

6/4S 2/4S

3/4M

4/4M

5/4I T3/3

T3/4 mc1

mc2 mc3

mc4 mc5

mc6

mc7

mc8 mc9

6 7

1 2 3 4 5

8 9

Control (shelter, percipitation) Stubai vegetation – in situ Biological manipulations

Environmental manipulations

(13)

13

2 0 2 4 km

N

3 0 3 6 km

N

Matsch Valley

dry inner alpine climate;

precipitation = 526.7 mm mean temperature = 6.6°C

Stubai Valley

northern Central-European climate precipitation = 1097 mm

mean temperature = 6.3°C

(14)

C

^LIM

A

^GRO

 I

^NTEGRATING

P

^{LANT AND}

E

^COSYSTEM

F

^UNCTIONING

PLANT

height allocation hydraulics growth

LEAF

area mass conductance

SLA [N]

life-span LDMC thickness phenology

R^OOT

depth mass

CANOPY

structure: (size, denisty, diversity)

CWM & FD of height, leaf mass & area

gas exchange canopy conductance

energy balance

EVAPOTRANSPIRATION

PRODUCTIVITY

DROUGHT RESISTANCE

plant functional traits effect and response functions

(15)

15

 T

^HANK

Y

^OU

(16)

E

^COSYSTEM

S

^ERVICES

evapotranspiration precipitation

C LIM A GRO

UNDERSTANDING THE ANTHROPOGENIC AND NATURAL DRIVERS OF WATER BALANCE IN CHANGING ALPINE

GRASSLANDS USING A NETWORK OF SMALL - SCALE LYSIMETERS

S ETTING THE S CENE

T

A



E

T

A



C

C

A



C

C

A

 P

CLIMAGRO

T

L

A

 E

W

B

T

L

A

 S

-S

L

C

A

 I

C

A

 L

B

C

C

A

 E

D

C

A

 I

P

E

F

 T

Y

E

S

C ^LIM A ^GRO

S ^{ETTING THE} S ^CENE