S2.3 Quantifying Functions in Terrestrial Ecosystems

27 Sep 2018
10:30 - 12:15
Lecture Hall 5

S2.3 Quantifying Functions in Terrestrial Ecosystems

S2.3 _ Quantifying the functions in terrestrial ecosystems: from concepts to data driven methods. (Session Chairs: Talie Musavi, Miguel Mahecha, Xuanlong Ma and Mirco Migliavacca)

One argument for nature conservation efforts is preserving e.g. ecosystem services such as carbon sequestration potential, water and nutrient retention, among many others. To quantify such processes, we not only need a clear conceptual understanding of ecosystem functioning
but also novel ways to quantify them and understand controlling factors at various spatial and temporal scales.
In this session we invite contributions on conceptual advances to define and identify “Ecosystem Functioning”. We also aim to discuss latest developments in observing ecosystem functions from in-situ data or with proximal or remote sensing from the site level to the global scale. Innovative advances on nonlinear statistical methods, model-data integration, or inversion studies that help us to constrain ecosystem functioning or to retrieve functional properties of the ecosystems (e.g.
radiation use efficiency, nitrogen use efficiency, water use efficiency and so forth) – even if in early stages of development are also encouraged to participate as we strive for a broad session. The goal of our session is to provide a stage for those interested in understanding the ecosystem functioning combining diverse data streams or analytic frameworks.

Keywords: ecosystem function, ecosystem processes, model, in-situ data, remote sensing

Talk 01-07

Analyzing the time variant causality in ecological time series: a time-frequency approach
Maha Shadaydeh, Yanira Guanche Garcia, Miguel Mahecha, Markus Reichstein and Joachim Denzler

What controls global fire activity? Evaluating emergent responses in satellite observations and ecosystem models using machine learning
Matthias Forkel, Sandy P. Harrison, Niels Andela, Gitta Lasslop, Margreet van Marle, Wouter Dorigo, Matthew Forrest, Stijn Hantson6, Angelika Heil, Fang Li, Stephane Mangeon, Joe Melton0, Chao Yue, Almut Arneth

Sensitivity of potential gross primary productivity to climate drivers
Daniel E. Pabon-Moreno, Talie Musavi, Mirco Migliavacca and Miguel D. Mahecha

Nutrient induced changes in Sun-Induced Fluorescence emission in a Mediterranean grassland
David Martini, Javier Pacheco-Labrador, Oscar Perez-Priego, Christiaan van der Tol, Tarek El-Madany, Tommaso Julitta, Micol Rossini, Anatoly Gitelson, Markus Reichstein and Mirco Migliavacca

Insight into hydrochemistry: a multi-catchment comparison using Horizontal Visibility Graphs
Eva Klotzbücher, Holger Lange, Sebastian Sippel, Michael Hauhs and Britta Aufgebauer

Representativeness-Based Sampling Network Design for the Arctic
Forrest M. Hoffman, Jitendra Kumar, William W. Hargrove, Martijn Pallandt and Mathias Goeckede

Early indicators of high impact of an invasive ecosystem engineer on ecosystem functioning from leaf to landscape scale
André Große-Stoltenberg, Christine Hellmann, Jan Thiele, Christiane Werner and Jens Oldeland