Ecosystems, their abiotic and biotic compartments as well as their internal processes and interactions can be interpreted as the result of numerous evolutionary steps during system development. Understanding ecosystem development can be regarded, therefore, as crucial for understanding ecosystem functioning. This session will highlight research in this field within two parts.

The first part of this session is dedicated to experimental approaches to disentangle these complex processes and interactions of the Critical Zone. Well-known flagship sites in this sense are, e.g., Biosphere2 in the USA or Hydrohill in China. In addition, post-mining landscapes worldwide offer multiple opportunities for establishing artificial experimental sites for various purposes. Many experimental sites are based on hydrological catchments as integrative landscape units. Other large-scale experiments focus on selected parts of ecosystems which were modified or transplanted. This part of the session tries to create a global overview on large-scale landscape experiments on ecohydrological, pedological, biogeochemical or ecological processes within the Critical Zone.

The second part is related to the co-evolution of spatial patterns of vegetation, soils and landforms. These patterns are recognized as sources of valuable information that can be used to infer the state and function of ecosystems. Complex interactions and feedbacks between climate, soils and biotic factors are involved in the development of landform-soil-vegetation patterns, and play an important role on the stability of landscapes. In addition, large shifts in the organization of vegetation and soils are associated with land degradation, frequently involving large changes in the functioning of landscapes. This part of the session will focus on ecogeomorphological and ecohydrological aspects of landscapes, conservation of soil resources, and the restoration of ecosystem functions.

Invited talks will be given by Dr. Abad Chabbi (Director of Research at the French National Institute for Agricultural Research, INRA) on “Challenges, insights and perspectives associated with combining observation and experimentation research infrastructure“. Part two of the session is proud to announce the invited talk of Prof. Praveen Kumar (Lovell Professor of Civil and Environmental Engineering, University of Illinois, USA, Director of the US NSF Critical Zone Observatory for Intensively Managed Landscapes) on "Co-evolution of landscape and carbon profile through depth: understanding the interplay between transport and biochemical dynamics".

Co-organized as BG1.60/GI4.14/GM5.11/HS11.4
Convener: Werner Gerwin | Co-conveners: Mariano Moreno de las Heras, Laura Meredith, Jin Lin, Patricia Saco, Jantiene Baartman, Jose Rodriguez
| Fri, 12 Apr, 10:45–12:30, 14:00–15:45, 16:15–18:00
Room G1
| Attendance Fri, 12 Apr, 08:30–10:15
Hall X1

Attendance time: Friday, 12 April 2019, 08:30–10:15 | Hall X1

Chairperson: Jantiene Baartman & José Rodriguez
X1.312 |
Laura Meredith, Connor Youngerman, Aditi Sengupta, Peter Troch, and Till Volkmann
X1.314 |
Jin Lin, weizu gu, and aimin liao
X1.316 |
Wei Li, Jin Lin, and Xing Min
X1.317 |
Thomas Maurer, Daniel Caviedes-Voullieme, Horst H. Gerke, and Christoph Hinz
X1.318 |
Shahin Khosh Bin Ghomash, Daniel Caviedes-Voullième, and Christoph Hinz
X1.321 |
Yasemine Brück, Pedro Rojas, Daniel Caviedes-Voullième, and Christoph Hinz
X1.322 |
Davood Moghadas, Wolfgang Schaaf, Werner Gerwin, Annika Badorreck, and Reinhard. F Huettl
X1.323 |
Unraveling the abundant and rare bacteria sub-community and their variations with salinity in a Holocene estuary groundwater
Xiaoying Zhang, Zhenxue Dai, and Bill Hu
X1.324 |
Lucía Buendía and David Badía
X1.325 |
Lorenzo Marzini, Enrico D'Addario, Leonardo Disperati, and Francesco Chianucci
X1.326 |
Cecilia María Armas-Herrera, David Badía, Juan Luis Mora, Alberto López, and Daniel Gómez
X1.327 |
Steven Sandi, Patricia Saco, Neil Saintilan, Li Wen, George Kuczera, Garry Willgoose, Gerardo Riccardi, and Jose Rodriguez
X1.330 |
Biodiversity conservation in transformed landscapes – the role of historical sites in sustaining grassland habitats and species
Balázs Deák, Orsolya Valkó, Dávid Nagy D., Péter Török, Attila Torma, Gábor Lőrinczi, András Kelemen, Szabolcs Mizser, Antal Nagy, and Béla Tóthmérész