Tropical ecosystems play an important role for the regional and global climate system through the exchange of greenhouse gases (GHG), water and energy and provide important ecosystem services that we as humans depend on, such as wood, foods, and biodiversity. Historic and recent human activities have, however, resulted in intensive transformation of tropical ecosystems impacting on the cycling of nutrients, carbon, water, and energy.

Here we invite contributions that provide insights on how land-use and land-use change influences biogeochemical cycles and ecohydrology in tropical ecosystems at the plot, landscape, and continental scale. Examples include nitrogen and carbon cycles in soil and vegetation, the exchange of GHG between soil and atmosphere as well as ecosystem and atmosphere, changes in the energy balance, impacts on the water cycle, scaling issues from plots to country to continent; and the influence of management activities (i.e. fertilization, drainage, etc.) on GHG fluxes.

The session covers forests, but also managed land-use systems such as agriculture, pastures or oil palm plantations. Experimental studies (chamber or eddy covariance flux measurements, stable isotopes, sap flux), inventories, as well as remote sensing or modelling studies are welcomed.

Co-organized as AS4.19/SSS5.12
Convener: Arturo Sanchez-Azofeifa | Co-conveners: Sebastian Doetterl, Marijn Bauters, Jenny Farmer, Christian Stiegler
| Fri, 12 Apr, 14:00–15:45
Room 2.44
| Attendance Fri, 12 Apr, 10:45–12:30
Hall A

Attendance time: Friday, 12 April 2019, 10:45–12:30 | Hall A

Chairperson: Christian Stiegler, Jennifer Ann Far, Marijn Bautersmer
A.390 |
Junen Wu, Wenjie Liu, and Chunfeng Chen
A.392 |
Ecological impacts of the Xiaolangdi Reservoir on the Yellow River
Hui Li and chunhui Li
A.393 |
Marie Brunel, Henrique Barbosa, Markus Drüke, Christoph Müller, Anja Rammig, Kirsten Thonicke, Stephen Wirth, and Susanne Rolinski
A.394 |
Rahmi Ariani, Alexander Knohl, Yuanchao Fan, Tanja June, and Fernando Moyano
A.396 |
Tracking the effects of global change on central Africa's tropical forest: a triple isotope approach
Sofie Meeus, Marijn Bauters, Filip Vandelook, and Pascal Boeckx
A.397 |
Soil C dynamics and their relationship to geomorphic and –chemical gradients in tropical soil systems
Mario Reichenbach, Laurent Kidinda, Basile Bazirake Mujinya, and Sebastian Doetterl
A.398 |
Temperature sensitivity of soil carbon respiration in tropical forest soils along geomorphic and geochemical gradients
Benjamin Bukombe, Alison Hoyt, Marijn Bauters, and Sebastian Doetterl
A.399 |
Christian Stiegler, Ashehad Ashween Ali, Tania June, and Alexander Knohl
A.400 |
| presentation
Ananya S Rao, Govindasamy Bala, and Nh Ravindranath