COST Action FP0903, Conference Rome,

Transcription

1 Linking different long-term research and monitoring sites and establishing common protocols that are open for new developments experiences from Switzerland COST Action FP0903, Conference Rome,

2 Outline Location and history of long-term research and monitoring sites The long-way to truely integrate monitoring and process-based research Common protocols Some new developments Future integration of Swiss plots COST Action FP0903, Conference Rome,

3 level 1 (Sanasilva) Monitoring Networks in CH 16 x 16 km grid every 1 year Forest Condition level 2 (LWF) Jura Plateau NFP14+ Sites Lägeren, Alptal, Davos 18 plots Continuously Cause-Effect Prealps Alps Southern Alps COST Action FP0903, Conference Rome,

4 Flux sites and Experiments Physiology, Eddy Tower Davos, Lägeren Field experiments Face (+CO 2 ) Irrigation (-drought) N-Addition (+N) Chamber experiments Filtering (-Ozone) Querco (+drought, +T A ) Hofstetten Univ. Basel Pfynwald Alptal Lattecaldo Birmensdorf COST Action FP0903, Conference Rome,

5 National Research Programm NFP14+ NFP14+ ( ) To study the effect of air pollution on forests Creation of 3 super research sites : Lägeren, Alptal, Davos Measuring towers for pollutants, climate Physiological measurements Tree growth measurements Only for four years! Following 1988, no consistent measurements were carried out. COST Action FP0903, Conference Rome,

6 Measurements on the NFP14+ sites Davos Swiss national air pollution network (NABEL/EMEP) Sapflow, dendrometers, flux tower (ICOS) Alptal Watershed: water flows, meteo tower N addtion experiments (Nitrex, NitroEurope) (ICP Integrated Monitoring) Lägeren Swiss national air pollution network (NABEL/EMEP) Flux site COST Action FP0903, Conference Rome,

7 ICP Forests Level II Sites Level II sites were established starting in 1994 All level II sites in CH are part of LTER- Europe The NFP14+ sites did not match the criteria set for the level II sites for homgeneity of soil and vegetation! Only in Alptal a new level II site was installed COST Action FP0903, Conference Rome,

8 Example of Level II Research site COST Action FP0903, Conference Rome,

9 ICP Forests - Measurements level 1 (Sanasilva) 16 x 16 km grid every 1 year Forest Condition Crown condition Tree growth level 2 (LWF) Throughfall Soil solution Water potential Foliar symptoms Vegetation 18 plots Continuously Cause-Effect Soil chemistry Stream chemistryfoliar chemistry Leaf Area Index Litterfall Passive sampling Open-field and below-canopy Meteo stations Electronic dendrometers COST Action FP0903, Conference Rome,

10 Analysis of Level II Results 15 Nitrogen leaching exceedance Acidity Ozone COST Action FP0903, Conference Rome,

11 Davos Subalpine Site CH-Dav COST Action FP0903, Conference Rome,

12 Gross Primary Production CH-Davos Terrestrial Ecosystem Respiration Net Ecosystem Exchange Etzold et al. (in preparation) COST Action FP0903, Conference Rome,

13 Why Davos as Part of ICOS? COST Action FP0903, Conference Rome,

14 ICOS International Carbon Observation System A European research infrastructure dedicated to high precision observations of greenhouse gases fluxes COST Action FP0903, Conference Rome,

15 ICOS International Carbon Observation System COST Action FP0903, Conference Rome,

16 Common protocols Standardization of instruments Standardization of measurement and sampling protocols Standardization of data storage and dissemination (with the goal to make it open access to everybody) Problem standardization limits innovation! Alternative: Reference method COST Action FP0903, Conference Rome,

17 Lägeren Mixed Forest Site Flux Site COST Action FP0903, Conference Rome,

18 Phenology: Green Fraction vs. GPP GPP Green fraction Ahrends et al. (2009) Clim. Res. 39, COST Action FP0903, Conference Rome,

19 Jussy PAR inside and outside forest LAI2000 LAI2000 corr LAI proxy [m 2 m -2 ] Thimonier et al Waldner et al. In prep. COST Action FP0903, Conference Rome,

20 PAR, CCA, DMA, Growth LAI proxy [m2 m-2] Jussy LAI_proxy foliation Carpinus betulus Quercus petrea Total basal area increment [10 cm2 ha-1] 100%-defoliation Thimonier et al Waldner et al. in prep. COST Action FP0903, Conference Rome,

21 Davos: dendrometer and C fluxes Zweifel et al., 2010 COST Action FP0903, Conference Rome,

22 Can electronic dendrometer substitute flux towers? Zweifel et al., 2010 COST Action FP0903, Conference Rome,

23 Future plans Davos: ICOS site, EXPEER site, Level II => throughfall, soil solution and litter fall sampling started Lägeren: Swiss Fluxnet, establish as level II site (throughfall, litterfall, soil solution) Alptal: leave as is: N addition experiment, level II site (problem no litter fall!), meteo tower Selected level II sites: install electronic dendrometers COST Action FP0903, Conference Rome,

24 Thank You!!! COST Action FP0903, Conference Rome,