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27 MAR 2023 (MON) 15:30-17:00

ICCN & GEOG Joint Research Seminar

Managing Nitrogen for Sustainability

Date: 27 MAR 2023 (Monday)

Time: 15:30-17:00 (HKT)

Language: English

Hybrid Mode: F2F: Cartographica Laboratory and Library

10/F, The Jockey Club Tower, Centennial Campus, HKU

On-site registration link:

Zoom registration link:
Professor Baojing GU

Professor of Sustainability, Zhejiang University

Baojing Gu is a professor of sustainability at Zhejiang University. He is currently the Editor of The Innovation, Associated Editor of Earth’s Future and Environmental Science and Pollution Research, and the Editorial Board Member of Scientific Data. He serves as the deputy director of East Asia Center of International Nitrogen Initiative (INI). He is co-leading the cost and benefit analyses of International Nitrogen Management System (INMS) under the UNEP. He developed the Coupled Human And Natural Systems (CHANS) model to explore the interactions between natural cycles and human activities for a better global sustainable development. Currently, his research interest focuses on regional sustainable development, involving urbanization and rural development, resource and environmental management, policy regulations, and cost and benefit analysis. He is leading several research projects on SDGs (UNEP-NSFC) and climate change (IIASA). He has published over 100 papers in peer-reviewed journals, including first / corresponding authored papers in some top-ranked journals such as Science (1), Nature (3), PNAS (2), Nature Sustainability (1), Nature Food (6), Nature Communications (1), The innovation (2) and Earth’s Future (1).


Nitrogen cycle is an important part of the global biogeochemical cycle, and how to achieve synergy between food security and environmental protection through nitrogen regulation is a major scientific issue for global sustainable development. This study focuses on regional nitrogen environmental effects and regulation: 1) the establishment of a quantification method for cost-benefit analysis of nitrogen environmental health effects, which clarifies that reducing ammonia emissions is more cost-effective than nitrogen oxides in global PM2.5 governance, providing new ideas for air pollution control; 2) the discovery that regional agricultural nitrogen pollution is mainly driven by factors such as farm size, spatial and temporal coupling of crops and livestock, and rural aging, which has improved the understanding of macro-mechanisms agricultural nitrogen cycling and non-point source pollution; 3) the exploration of agricultural nitrogen sustainable utilization patterns such as constructing a nitrogen credit system, and the establishment of a long-term operation new mechanism for nitrogen pollution prevention and control.



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