Imbalance-P

Global Ecology.

Biogeochemistry.

Study the impacts of N loadings on soil-plant-atmosphere system shifts and their relationships with P concentration N:P ratio and general elemental composition and stoichiometric shifts. Study the impacts of nutrient imbalances in human ecology and nutrition.

Scientific Director of the Paracou long-term experimental station, one the P-Imbalance focal site

Expert in remote sensing, ecological modelling, ecosystem carbon and water dymanics

Sophie-Charlotte Bundle joined IIASA as a research scholar with the Ecosystems Services and Management Program (ESM) in November 2014. With ESM, she is working on a global model simulating agricultural production costs. In context with the imbalance P project Sophie will assess economics of C,N,P cycle and their effects to agricultural production, prices for agricultural products and changes in most economic management systems. Further to that Sophie will analyze the economics of C,N,P cycle and their effects on Fertilizer Industry (e.g. economic feasibility studies for new technologies to recover phosphor from sewage, manure etc).

Further information: http://webarchive.iiasa.ac.at/ifinger/n/index.html?login:^bundle%24:11:895:not^:nov^#cell_bundle

I will further develop the EPIC model by including biogeochemical mechanisms of nitrogen, phosphorus, and carbon of animal waste. I will also improve the representation of the phosphorus cycle in EPIC and employ the model to estimate yields under various scenarios of limited agricultural amendments.

Plant-herbivore  interactions, arthropod biodiversity responses, wood growth and dendroecology.

Global change effects in plant ecophysiology. Climate change and nitrification effects in plant photosynthetic activity, chlorophyll fluorescence, water relations, and ecosystem productivity.

Junior coordinator of the IMBALANCE-P

My main contribution to the IMBALANCE-P project is to gather, ensemble and analyse different ecological databases with the aim of studying the effect of nutrient availability, biodiversity and climate on forest features, productivity and carbon balance from a macroecological perspective.

Soil science, soil biology, ecotoxicology, soil quality indicators, soil ecosystem services and biochar.

I am focused on the development of tree-ring chronologies within gradients of nutrient availability in French Guiana and in fertilization experiments, using classical dendrochronological approaches plus tree-ring isotopes techniques.

I am also interested in the effects of experimental fertilization and nutrient availability on the linkage between belowground water movement mediated by roots (hydraulic lift and downward siphoning) and root nutrient uptake. More generally, I would like to explore the effect of nitrogen addition and/or phosporus limitation on plant water relations of tropical, mediterranean and temperate forests.

Climate change effects on ecosystem productivity, plant phenology and soil gas exchange. Climate change experiments on natural ecosystems.

Linking aquatic and terrestrial ecosystems, nutrient cycling in freswhater and riparian forest ecosystems.

Post doc working working on root identification and characterization in response to fertilizer treatments. Responsible for the root sampling during the wet and dry season measuring campaigns of 2019 in French Guiana.

My research activities have aimed to gain a deep understanding of the coupled C-N-H₂O cycling in forests, by linking different scales of investigations, i.e., from the tree to the ecosystem, and methodological approaches (e.g., stable C and O isotopes in leaves and tree rings, eddy covariance data). During my Marie Curie fellowship at the CREAF I will focus on tree canopies and their role in altering the chemical composition of precipitation and, consequently, the nutrient cycling within forests. I will explore the biological diversity hidden in the canopies, particularly bacteria, and its role in processing the atmospheric N.

Research interests: Climate change, regional to global air pollution, aerosol-radiation-cloud interactions, data assimilation of satellite observations in atmospheric models for monitoring the atmospheric composition of the atmosphere, atmosphere-biosphere couplings and biogeochemical feedbacks in the Earth System, impact of irrigation on climate, impact of aviation on climate, climate mitigation policies, climate metrics, and integrated assessment modelling, geoengineering, climate-energy nexus.

My main research topic is the application of proximal and remote sensing techniques to explore the terrestrial ecosystem biochemical responses to climate change and drought. I’m currently working on modelling ecosystem phenology, productivity, carbon and water fluxes and by using satellite observations from different sensors.

Project name: INDRO - Remote sensing INdicators for DROught monitoring

Plant growth, net primary production and ecosystem C allocation.

Chemical ecology.

Gerard Farré Armengol is biologist for the Autonomous University of Barcelona. He is doing his PhD thesis at the Global Ecology Unit CREAF-CEAB-CSIC studying the biotic and abiotic factors that affect the emissions of volatile organic compounds (VOCs) by flowers, as well as the effects of changes in floral emissions on the plant-pollinator interaction.

I contribute to the development and applications of the EPIC model to better represent P flows in agriculture and specifically grasslands. Another focus of my work is on assessing flows and stoichiometry of N and P in agricultural trade and production globally.

Metabolome of phosphorus in soil and plant by 31P NMR.

I am currently working as a postdoctoral researcher at the Global Ecology Unit (CREAF-CSIC-UAB, Catalonia). My research combines several disciplines in Ecology: plant biology, fungal biology, community structure, functional ecology, ecosystem dynamics, plant-soil interactions and diversity patterns. I have been doing research on contrasting ecosystems across the world: in alpine (Pyrenees, Himalaya), subarctic (Scandes), arctic (Greenland), tropical (French Guiana), and in mediterranean regions (Catalonia). I have conducted observational and experimental studies in most of these regions to analyse the effects of environmental variability on ecosystem functioning.

For more information you can e-mail me (grau.oriol@gmail.com) or check the website: https://www.researchgate.net/profile/Oriol_Grau

During the P-Imbalance project I will improve the soil scheme of the land surface model ORCHIDEE to better represent the P cycle in the soil. First, I 'll be in charge of the merge between the different versions which need to be associated for the project. Then I will co supervise the post doc and the Ph. D student who will devellop the weathering and the explicit representation of soil microorganisms. Finally, I will participate to the evaluation of the new version of ORCHIDEE including nitrogen and phosphorous cycle.

Atm N cycle with LMDZ INCA model

Algorithm development for the estimation of biophysical variables (LAI, FAPAR, and FCOVER) from Sentinel-3 observations, using existing satellite products and synthetic data sets as training data for machine learning models.

Project: C-GLOPS1 project

Remote Sensing & GIS technician.

I will analyze the international trade statistics in fertilizer market with a specific focus on phosphorous containing fertilizers and raw materials. The primary goal will be the exploration of exporter/importer relationship among the largest market players. Here a particular emphasis will be put on the analysis of price peaks and respective change in traded quantities. The possibility to build and calibrate an international fertilizer market model will be explored at different temporal resolutions.

I focus on global change effects on forest ecosystem structure and function, especially on ecophysiological and demographical changes. I will study climate change and nutrient availability on forest growth, tree mortality and species recruitment, richness and vegetation productivity.

LSCE technical manager for the ORCHIDEE model (code management, versioning, validation, evaluation at global scale), in collaboration with M. Gimberteau.

Worked on root and soil sampling during the wet season campaign of 2019 in French Guiana. Analysed soil samples for microbial biomass and nutrient turnover rates.

Within IMBALANCE-P I’m going to study the bottom-up effects of nutrient imbalances at local and regional scales on the composition and phylogenetic structure of soil mesofaunal communities.

I’d like to take advantage of recently developed metabarcoding techniques to uncover cryptic diversity and to infer potential mechanisms of community assemblage in poorly known taxonomic groups such as springtails and mites.

My expertise is in the field of Ecometabolomics to understand how metabolomes of organisms shift under environmental changes. In IMBALANCE-P I will apply ecometabolomics techniques to systems such as atmosphere (atmo-ecometabolomics) and soils (community ecometabolomics).

Research experience in Plant Molecular Biology applied to Molecular Ecology, Plant Genetics, Plant Biology and Genetic resources.

Soil organic matter formation and decomposition, plant-soil-atmosphere carbon transfer, and soil C-N-P relationships.

N2 fixation in Guiana.

I will measure leaf level gas exchange and simulate plot level photosynthesis to study aboveground respiration and tree carbon allocation.

Plant-herbivore interactions, arthropod biodiversity responses.

My profile is that of an agronomist/environmentalist specialized in plant ecophysiological responses to abiotic stresses in the frame of Climate Change, and in nutrient cycling in agricultural and forest ecosystems.

The geochemical model WITCH calculates mineral weathering fluxes and the corresponding chemistry of the soil solution.  The coupling of ORCHIDEE and WITCH models will enable to investigate the mineralogical P production by weathering and its feedback to the vegetation cycle.

Technician

I will conduct research into the effects of variation in nutrient status, climate and microsite characteristics on soil microbial communities and the functions they perform.

I focus on the response of ecosystem function and structure to climate change based on remote sensing technique. The objective is to assess the influence of climate change on carbon fixation at different temporal and spatial scales using photochemical reflectance index and fluorescence.

Collaborating with Guyana's field campaing.

Collaborating with Guyana's field campaing.

Collaborating with Guyana's field campaing.