Her work includes computer simulation modeling
of vegetation dynamics coupled to atmospheric general circiulation models (GCMs), occasional fieldwork, and theoretical studies on the thermodynamic efficiency of photon energy use in photosynthesis.
Not exact matches
NEON collects and produces data on precipitation patterns, soil and groundwater
dynamics, interactions with
vegetation, and processes such as nutrient cycling and food web
dynamics in aquatic ecosystems to support the comprehensive study
of water cycles throughout diverse ecosystems.
Organisation and
dynamics of biocoenosis; biodiversity patterns at various scales; hydrobiology
of running and standing waters and wetlands; ecological effects
of climate and land use changes; conservation biology and restoration ecology; new plant resources; natural
vegetation in Hungary; maintenance
of the Botanical Garden.
It's interesting to note that most
of these elements include physics that modellers are least confident about — hydrology, ice sheets and
vegetation dynamics.
Sitch, S., et al., 2003: Evaluation
of ecosystem
dynamics, plant geography and terrestrial carbon cycling in the LPJ dynamic global
vegetation model.
This 9 - day - long summer course intends to provide basic knowledge about the functioning
of the Critical Zone and its relationships with ecosystem
dynamics, focusing on aspects related to hydrology, soil geochemistry and weathering,
vegetation dynamics and distribution, microbiota, biodiversity, ecosystem processes
On the importance
of including
vegetation dynamics in Budyko's hydrological model R. J. Donohue, M. L. Roderick, and T. R. McVicar Ecosystem
Dynamics Group, Research School
of Biological Sciences,
The meeting will mainly cover the following themes, but can include other topics related to understanding and modelling the atmosphere: ● Surface drag and momentum transport: orographic drag, convective momentum transport ● Processes relevant for polar prediction: stable boundary layers, mixed - phase clouds ● Shallow and deep convection: stochasticity, scale - awareness, organization, grey zone issues ● Clouds and circulation feedbacks: boundary - layer clouds, CFMIP, cirrus ● Microphysics and aerosol - cloud interactions: microphysical observations, parameterization, process studies on aerosol - cloud interactions ● Radiation: circulation coupling; interaction between radiation and clouds ● Land - atmosphere interactions: Role
of land processes (snow, soil moisture, soil temperature, and
vegetation) in sub-seasonal to seasonal (S2S) prediction ● Physics -
dynamics coupling: numerical methods, scale - separation and grey - zone, thermodynamic consistency ● Next generation model development: the challenge
of exascale, dynamical core developments, regional refinement, super-parametrization ● High Impact and Extreme Weather: role
of convective scale models; ensembles; relevant challenges for model development
Effect
of 7 yr
of experimental drought on
vegetation dynamics and biomass storage
of an eastern Amazonian rainforest.
Analyses
of differences in model behavior should therefore focus not only on the processes
of carbon acquisition (i.e., photosynthesis and NPP), but also on the
dynamics of vegetation carbon turnover.
Nine global
vegetation models (GVMs)(meaning
vegetation processes are simulated, but not necessarily
vegetation dynamics), four
of which were DGVMs, were used in the Coupled Climate — Carbon Cycle Model Intercomparison Project (3).
However, global - scale
vegetation model development has strongly focused on productivity processes whereas, apart from major disturbances such as fire, the
dynamics of carbon turnover have been largely ignored.
Of the seven models used in the current study, HYBRID4 (7), JeDi (8), JULES (9), and LPJmL (10) simulated full
vegetation dynamics, whereas ORCHIDEE (11), SDGVM (12), and VISIT (13, 14) used prescribed
vegetation distributions.
Global environmental change is rapidly altering the
dynamics of terrestrial
vegetation, with consequences for the functioning
of the Earth system and provision
of ecosystem services1, 2.
This leads to different
dynamics of the regional fire cycles: In the Northern US, negative correlations
of fire with water storage or
vegetation for negative lags (fire leads) suggest that the enhanced fire frequency will reduce
vegetation carbon and affect subsequent droughts lasting for several years.
New efforts are needed in the development
of models, which successfully represent the space - time
dynamics interaction between soil, climate and
vegetation.
In the version
of this Letter originally published, in the final paragraph, the section
of text including «Earth system models should... nutrient cycling)» was misleading and should have been: «Models simulating the
dynamics of the terrestrial biosphere currently consider the effects
of nitrogen on
vegetation and soils25, 26 but they still do not consider the effects
of other nutrients such as phosphorus or potassium.
Ecological restoration is rooted in the understanding
of past ecosystem
dynamics, and paleoecological reconstructions provide a long - term perspective on landscape change,
vegetation dynamics, and fire history.
Also, a recent article on climate -
vegetation dynamics concludes that, due to poor scientific understanding
of ecological thresholds and their relationship to climate change, we can not accurately predict how or when
vegetation will change due to global warming, or even whether these changes will be reversible (Maslin, 2004).
Measurements
of biomass are important to studies
of biogeochemical cycling, modeling, mesoscale climate models, human impact,
vegetation dynamics, and surface roughness.
The lakes ECV is
of relevance to biogeochemical cycling, eutrophication, mesoscale climate models, human impact,
vegetation dynamics, water cycle, and radiation budget climate studies.
Peteet, D., A. Andreev, W. Bardeen, and F. Mistretta, 1998: Long - term Arctic peatland
dynamics,
vegetation and climate history
of the Pur - Taz region, Western Siberia.
It's interesting to note that most
of these elements include physics that modellers are least confident about — hydrology, ice sheets and
vegetation dynamics.
High spatial resolution three - dimensional mapping
of vegetation spectral
dynamics using computer vision.