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current research | curriculum
vitae | publications | carrer
development plan (internal)
ER1 Research Project: Terrestrial
ecosystem processes and global feedbacks
Large potential feedbacks exist between future climate warming
and the global carbon cycle. However, these feedbacks critically
depend on terrestrial processes that are poorly understood
and thus only weakly (if at all) represented in so called
'Earth System Models'. The key objective of this research
is to advance our understanding of these critical processes
and so better quantify carbon-climate feedbacks on the global
scale. This will be achieved by integrating the latest understanding
in climatic, hydrologic and edaphic controls on land-atmosphere
carbon fluxes, obtained from analysis of intensive field and
laboratory data, into novel parameterisations for the ORCHIDEE
dynamic global vegetation model. This model is a component
of the coupled IPSL GCM, and is used to study possible feedbacks
between climate and land surface processes.
Particular
emphasis of the project has been placed on the representation
of the coupled N cycle in ORCHIDEE, and its impact on
vegetation
processes (especially fluxes of carbon). Additionally, representations
of the interactions between soil moisture, phenology, and
vegetation physiology have been tested, drawing
on close collaboration with the Greencycles partner CREAF
(Barcelona,
Spain). Collaborations have been established with the
Hadley
Centre, UK, University of Lund, Sweden, and the University
of South Bohemia, Czech Republic, in order to integrate
understanding
from experimental work into ecosystem models.
This
project (ER 1) contributes to the science
objective 1 (Quantify feedbacks in the global carbon
cycle) of GREENCYCLES and has links to the projects
of Marcin
(ESR X), Raquel
(ESR I), Roxanna
(ESR IX), Sarah
(ESR VII) and Trevor
(ESRVIII).
Current Research: Marie
Curie Reintegration Grant (ERG) JULIA "Joining
ecophysiological Understanding and global ecosystem
modelling for improved simulation of Land surface Interactions
with the Atmosphere" at the MPI-BGC, Jena,
Germany.
Curriculum
Vitae |
| |
| since
08/2008 |
Research
Scientist at the Max-Planck-Institute
for Biogeochemistry in Jena, DE |
| 08/2005
- 07/2008 |
Experienced
Researcher (PostDoc) at the Laboratoire
des Sciences du Climat et de l'Environnement in Gif sur Yvette, FR, within
the GREENCYCLES MC-RTN |
| 04/2005
- 07/2005 |
Researcher
at the Potsdam Institute
for Climate Impact Research, Potsdam, DE |
| 09/2001
- 04/2005 |
PhD-student
at the University
of Potsdam / Potsdam
Institute for Climate Impact Research, Potsdam DE |
| 09/2000
- 08/2001 |
MSc-Environmental
Sciences at the University
of East Anglia, Norwich, UK. |
| 10/1997
- 09/2000 |
Study
of Geoecology at the Technische
Universität Braunschweig, Braunschweig, DE. |
2008
Ciais,
P. Schelhaas, M.J, Zaehle., S., Piao, S.L,
Cescatti, A., Liski, J., Luyssaert, S., Le-Maire, G., Schulze,
E.-D., Bouriaud, O., Freibauer, A., Valentini, R., Nabuurs,
G.J. (2008): Carbon accumulation in European forests, Nature
- Geosciences 1 425 - 429. abstract
Eggers,
J., Lindner, M., Zudin, S., Zaehle, S., Liski,
J. (2008, online early): Impact of changing wood demand, climate
and land use on European forest resources and carbon stocks
during the 21st century, Global Change Biology, abstract
Vetter,
M. G. Churkina, M. Jung, M. Reichstein, S. Zaehle,
A. Bondeau, Y. Chen, P. Ciais, F. Feser, A. Freibauer, R.
Geyer, C. Jones, D. Papale, J. Tenhunen, E. Tomelleri, K.
Trusilova, N. Viovy, M. Heimann (2008): Analyzing the causes
and spatial pattern of the European 2003 carbon flux anomaly
in Europe using seven models, Biogeosciences 5
561-583. abstract
Wramneby,
A., Smith, B. Zaehle, S. Sykes, M.T. (2008):
Parameter uncertainties in the modelling of vegetation dynamics
– effects on tree community structure and ecosystem
functioning in European forest biomes, Ecological Modelling,
216 (3-4), 277-290, abstract
2007
Bondeau,
A., Smith, P.C., Zaehle, S., Schaphoff, S.,
Lucht,W., Cramer, W., Gerten, D., Lotze-Campen, H., Müller,
C., Reichstein, M., Smith, B. (2007): Modelling the role of
agriculture for the 20th century global terrestrial carbon
balance, Global Change Biology, 13 (3)
679-706. abstract
Ciais,
P., Manning, A.C., Reichstein, M., Zaehle, S.,
Bopp L. (2007): Nitrification amplifies the decreasing trends
of atmosphericoxygen and implies a larger land carbon uptake,
Global Biogeochemical Cycles, 21(2)
GB2030, abstract
Friend,
A.D., Arneth, A., Kiang, N.Y., Lomas, M., Ogée, J.,
Rödenbeck, C., Running, S.W., Santaren, D., Sitch, S.,
Viovy, N., Woodward, F.I., Zaehle, S. (2007):
Fluxnet and modelling the global carbon cycle, Global
Change Biology, 13 (3) 610-633. abstract
Jung,
M., Le Maire, G., Zaehle, S., Luyssaert,
S., Vetter, M., Churkina, G., Ciais, P., Viovy, N., Reichstein,
M. (2007): Assessing the ability of three land ecosystem models
to simulate gross carbon uptake of forests from boreal to
Mediterranean climate in Europe, Biogeosciences,
4, 647-656. abstract
Jung,
M., Vetter, M., Herold, M., Churkina, G., Reichstein, M.,
Zaehle, S., Cias, P., Viovy, N., Bondeau,
A., Chen, Y., Trusilova, K., Feser, F., Heimann, M. (in press),
Uncertainties of modelling GPP over Europe: A systematic study
on the effects of using different drivers and terrestrial
biosphere models, Global Biogeochemical Cycles, 21,
GB4021, doi:10.1029/2006GB002915, abstract
Müller,
C., Eickhout, B., Zaehle, S., Bondeau, A.,
Cramer, W., Lucht, W. (2007): Effects of changes in CO2, climate
and land use on the carbon balance of the land biosphere during
the 21st century, Journal of Geophysical Research –
Biogeoscience, 112, G02032. abstract
Piao,
S., Friedlingstein, P., Ciais, P., de Noblet-Ducoudré,
N., Labat, D., Zaehle , S. (2007), Changes
in climate and land use have a larger direct impact than rising
CO2 on global river runoff trends, Proceedings of the
National Academy of Sciences, 104 (39),
15242-15247. abstract
Seguin,
B., Arrouays D., Balesdent, J., Soussana, J.-F., Bondeau,
A., Smith, P.C., Zaehle, S., de Noblet, N.,
Viovy, N. (2007): Moderating the impact of agriculture on
climate, Agricultural and Forest Meteorology, 142:
278-287. abstract
Smith,
P., Chapman, S., Scott, W., Black, H., Wattenbach, M., Milne,
R., Campbell, C., Lilly, A., Ostle N., Levy, P., Lumsdon,
D., Millard, P., Towers, W., Zaehle, S.,
Smith, J. (2007), Climate change cannot be entirely responsible
for soil carbon loss observed in England and Wales, 1978-2003,
Global Change Biology, 13 (12) 2605-2609.
abstract
Zaehle,
S., Bondeau, A., Carter, T., Cramer, W., Erhard,
M., Prentice, I.C., Reginster, I., Rounsevell, M.D.A., Sitch,
S., Smith, B., Smith, P.C., Sykes, M. (2007): Projected changes
in terrestrial carbon storage in Europe under climate and
land-use change, 1990-2100, Ecosystems, doi: 10.1007/s10021-007-9028-9.
abstract
2006
Hickler,
T., Prentice, I.C., Smith,
B., Sykes, M.T.,
(2006): Implementing plant hydraulic architecture within the
LPJ dynamic global vegetation model, Global Ecology and
Biogeography 15 (6): 567-577. abstract
Smith,
P., Smith, J., Wattenbach, M., Meyer, M., Lindner, M., , Hiederer, R., Jones, R., Montanarella,
L., Rounsevell, M., Reginster, I. (2006): Projected changes
in mineral soil carbon of European forests, 1990-2100, Canadian
Journal of Soil Science, 86 (2) 159-169.
abstract
, Sitch, S., Prentice, C., Liski, J., Cramer,
W., Erhard, M., Hickler, T., Smith, B. (2006): The importance
of age-related decline in forest NPP for modeling regional
carbon balances, Ecological Applications 16(4)
1555-1574. abstract
2005
Gerten,
D., Hoff, H., Bondeau, A., Lucht, W., Smith, P., (2005): Contemporary "green"
water flows: Simulations with a dynamic global vegetation
and water balance model, Physics and Chemistry of the
Earth, 30 (6-7) 334-338. abstract
Schröter
D., Cramer W., Leemans R., Prentice I.C., Araújo M.B., Arnell
N.W., Bondeau A., Bugmann H., Carter T.R., Garcia C.A., de
la Vega-Leinert A.C., Erhard M., Ewert F., Glendining M.,
House J.I., Kankaanpää S., Klein R.J.T., Lavorel S., Lindner
M., Metzger M.J., Meyer J., Mitchell T.D., Reginster I., Rounsevell
M., Sabaté S., Sitch S., Smith B., Smith J., Smith P., Sykes
M.T., Thonicke K., Thuiller W., Tuck G., , Zierl B. (2005): Ecosystem Service Supply
and Vulnerability to Global Change in Europe. Science,
310 (5752) 1333-1337. abstract
Smith,
J., Smith, P., Wattenbach, M., , Hiederer, R., Jones, R., Montarella, L.,
Rounsevell, M., Reginster, I., Ewert, F. (2005): Projected
changes in mineral soil carbon of European croplands and grasslands,
1990-2080. Global Change Biology, 11 (12)
2141-2152. abstract
, Sitch, S., Smith, B., Hattermann, F. (2005):
Effects of parameter uncertainties on the modeling of terrestrial
biosphere dynamics, Global Biogeochemical Cycles,
19 GB3020, doi:10.1029/2004GB002395. abstract
(2005): Effect of height on tree hydraulic
conductance incompletely compensated by xylem tapering, Functional
Ecology, 19(2) 359-364. abstract
Zaehle,
S., Friend, AD., Friedlingstein, P., Schulz, M. (2008)
Modelling ecosystem nitrogen dynamics to simulate historical
and future terrestrial greenhouse gas budgets, Geophysical
Research Abstracts, 10: 6373. abstract
García,
R., Keenan, T., Zaehle, S., Friend, A., Gracia,
C., Sabaté, S. (2008) Ecophysiological responses to
drought in Mediterranean forest ecosystems: data analysis
and the evaluation of model predictions in drought prone environments,
Geophysical
Research Abstracts, 10: 6420. abstract
Eggers
J, Lindner M, Zudin S, Zaehle S, Liski J,
Nabuurs G-J (2007) Forestry in Europe under changing climate
and land use. In Forestry & Climate Change (eds Freer-Smith
PH, Broadmeadow MSJ, Lynch JM), pp. 112-118. CABI, UK. preface
Stephens,
N., Zaehle, S., Poulter, B. (2007), Improving
our understanding of Earth system processes within the GREENCYCLES
European training network, Eos Trans. AGU, 88(38), 372. online
material
Watrin,
J., Friend, A.D., Zaehle, S., Lézine,
A.-M. (2007): Modelling vegetation dynamics in West Africa
during the Holocene and links to in situ proxy data, Geophysical
Research Abstracts, 9: 8985. abstract
Zaehle,
S., Friedlingstein, P., Bopp, L., Cadule, P (2007):
A first estimate of the feedback between climate change and
atmospheric nitrous oxide concentration, Geophysical Research
Abstracts, 9: 7937. abstract
Zaehle,
S., Friend, A. (2006): The role of nitrogen in terrestrial
biosphere responses to climate change and CO2
increase, Geophysical Research Abstracts, 8:
8345. abstract
, Sitch, S., Liski, J., Erhard, M. (2006):
Combining land-use statistics with process-based modeling
to estimate the European forest carbon balance, Geophysical
Research Abstracts, 8: 7712. abstract
Churkina,
G., Vetter, M., Heimann, M., Rödenbeck, C., and the CarboEurope
Integration Team (2006): European carbon balance
and its constituent fluxes in 1980-2003: Analysis using bottom-up
and top-down estimates, Geophysical Research Abstracts,
8: 7076. abstract
(2005): Process-based simulation of
the terrestrial biosphere : an evaluation of present-day and
future terrestrial carbon balance estimates and their uncertainty.
PhD-thesis, 193 pp. (URN:nbn:de:kobv:517-opus-5263), Universität
Potsdam, Potsdam, DE. abstract
| full-text
, Bondeau, A., Smith, P., Sitch, S., Schröter,
D., Erhard, M. Cramer, W. (2004): Europe's terrestrial carbon
sink may last until 2050 and then decline, Geophysical
Research Abstracts, 6: 3808. abstract
Lindner,
M., Lucht, W., Bouriaud, O., Green, T., Janssens, I. (ed.,
2004): Specific Study on Forest Greenhouse Gas Budget.
Discussion paper as contribution to the Concerted Action CarboEurope-GHG.
download
Schröter,
D. and ATEAM members (2004): The ATEAM
final report 2004 – Detailed report related to overall
project duration. Advanced Terrestrial Ecosystem Analysis
and Modelling, a project funded under the 5th framework Programme
of the European Union, pp. 139. download
(2001): Assessing the impact of ENSO
on agriculture: A northern Vietnam case study on rice production.
Master Thesis, 65pp., University of East Anglia, Norwich,
UK. (copy available on request)
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