Chair: Wolfgang Cramer & Lindsey Rustad

Historical data

Steven W. Leavitt, University of Arizona, US
Tree ring studies (20 min).
Tree ring records as evidence for changes in water inputs. Implications for ecosystem functioning, effects on carbon storage and plant growth.

Josep Penuelas, Universitat Autònoma de Barcelona, ES
Evidence for effects on ecosystem functioning due to precipitation change in recent years (15 min)
Examples from Spain (changes in tree lines, phenology etc) and remote sensing as a tool to register ecosystem changes (What does remote sensing tell us, evidence for droughts, flooding etc. and effects on ecosystem services (e.g. biodiversity, species change, carbon storage)). (Confirmed)

Observations and Space-for-time substitution

Philip Ciais, CEA Saclay, FR
Carbo Europe (10 min)
Interanual Carbon sequestration across Europe regulated by water and temperature, effects on processes responsible for gains and losses. (Confirmed)

Dimitris Sarris, University of Patras, GR
Repeated Natural drought (10 min)
Greece forest, natural droughts for >30 years. (Confirmed)

Manipulation experiments

Alan Knapp, Colorado State University, US
RaMPs (10 min)
Water addition in Konza Prairie (including distribution). (Confirmed)

Paul Hanson, Oak Ridge National Laboratory, US
Walker Branch (10 min)
Throughfall displacement in forest. (Confirmed)

Franco Miglietta, IBIMET-CNR, IT
MIND (10 min)
Mediterranean ecosystems and drought. (Confirmed)

Dan Nepstad, Woods Hole Research Center, US
Amazonia (10 min)
Long term drought in rain forest, Brazil. (Confirmed)

Claus Beier, Risoe National Laboratory, DK
VULCAN (10 min)
Drought experiments across European shrublands in DK, UK, NL, SP, IT, HU (confirmed)

Osvaldo Sala, Brown University, US
The Patagonian region in Argentina (10 min)
Controls on biogeochemical processes along a contiguous precipitation gradient in the Patagonian region in Argentina. (Confirmed)

Michael Loik, University of California, Santa Cruz, US
Ecosystem consequences of long-term snow depth changes (10 min)
High-elevation desert (confirmed)

Model experiments

Dieter Gerten, Potsdam-Institute for Climate Impact Research, GE,
Yiqi Luo, University of Oklahoma, US &
Bill Parton, Colorado State University, US
(60 min)
Effects of precipitation changes on ecosystem functioning, including NPP, NEE, evapotranspiration, runoff (water yielding), soil moisture and water stress, as simulated by three different models for several sites in different climatic zones.(Confirmed)