[A-CG54] Biogeochemical Cycles in Land Ecosystem

Tue. May 26, 2026 9:00 AM - 10:30 AM 102 (International Conference Hall, Makuhari Messe)

Chairperson:Teramoto Munemasa(Arid Land Research Center, International Platform for Dryland Research and Education, Tottori University)

Terrestrial ecosystem influences global climate through cycles of water, carbon, and nitrogen between the land surface and the atmosphere. For a better understanding of those behaviors, a great effort has been made to develop a variety of approaches and techniques such as biometric surveys, eddy and chamber methods, near and satellite remote sensing, biosphere modeling, and so on. In particular, JapanFlux, founded in 2006 as a research network of CO2, H2O, and other trace gas flux measurements, has promoted multidisciplinary studies not only for the flux measurement community but also for remote sensing and biosphere modeling communities. This session unites those multidisciplinary activities and promotes oral and poster presentations on the role of the terrestrial ecosystem in material circulations of water, carbon, nitrogen, energy, and other substances by any approaches and techniques. This session takes over the former session from last year.

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9:00 AM - 9:15 AM

[ACG54-01] Long-term Trends in ground-based Vegetation Indices and their relationship to climate and GPP in a Japanese Larch Forest

*Da-Jun Chu¹, Tomomichi Kato², Tomoko Kawaguchi Akitsu³, Kenlo Nishida Nasahara⁴, Tomoki Morozumi⁵, Yoshiyuki Takahashi⁵ (1. Graduate School of Global Food Resources, Hokkaido University, 2. Research Faculty of Agriculture, Hokkaido University, 3. Earth Observation Research Center, Japan Aerospace Exploration Agency, 4. Institute of Life and Environmental Sciences, University of Tsukuba, 5. Earth System Division, National Institute for Environmental Studies)

9:15 AM - 9:30 AM

[ACG54-02] Factors Controlling Atmospheric Hg Variability over Deciduous-Coniferous Forest at Fuji North Observation Site in Japan

*Akinori Takeuchi¹, Yoshiyuki Takahashi¹ (1. National Institute for Environmental Studies, Japan)

9:30 AM - 9:45 AM

[ACG54-03] A Large Assessment of Wavelet-Based Conditional Sampling for Partitioning Ecosystem Respiration and Photosynthesis: Advancing Empirical Flux Partitioning Across Diverse Ecosystems

*Pedro Henrique Herig Coimbra¹, Benjamin Loubet¹, Dario Papale², Giacomo Nicolini² (1. Institut National de Recherche pour l Agriculture, l Alimentation et l Environnement, 2. University of Tuscia)

9:45 AM - 10:00 AM

[ACG54-04] Seasonal Trade-offs and Diurnal Patterns of GHG Emissions under Rice Straw Management using a Multichannel Automated Chamber System in Subtropical Paddy Soils

*Chuan Fu Kao¹, Shan Li Wang¹ (1. National Taiwan University )

10:00 AM - 10:15 AM

[ACG54-05] Seasonal below- and aboveground microbial C and N cycling and GHG fluxes in Congo Basin peatland forests and savannas

*Mikk Espenberg¹, Si Chen¹, Laura Kuusemets¹, Jaan Pärn¹, Kaido Soosaar¹, Ulrich Gaël Bouka Dipelet², Sydney Thony Ndolo Ebika², Joël J. Loumeto², Ülo Mander¹ (1. University of Tartu, 2. Marien Ngouabi University)

10:15 AM - 10:30 AM

[ACG54-06] Soil carbon and greenhouse gas dynamics under changing soil water environments

*Hirohiko Nagano¹, Ruixin Wang¹, Yuri Suzuki¹, Noreen Zahra¹ (1. Niigata University)

Session information