Dear colleagues, 
Please consider submitting abstracts of your work to a new session on 
"Quantifying 
Nutrient Budgets for Sustainable Nutrient Management” for the 2018 AGU Fall 
Meeting 
(Dec. 10-14, Washington D.C.). More details are attached below. We would also 
appreciate 
if you can share this session with your colleagues working on related topics. 
We look 
forward to seeing you at AGU.
Best regards, 
 Xin Zhang (University of Maryland Center for Environmental Science), 
Luis Lassaletta (Technical University of Madrid), 
Nathaniel Mueller (University of California, Irvine), 
Josep Canadell (CSIRO Marine & Atmospheric Research), 
Rich Conant (Colorado State University) 

_____________________________________________________
New Session for 2018 AGU Fall Meeting:
GC075: Quantifying Nutrient Budgets for Sustainable Nutrient Management 

Nutrients, such as Nitrogen (N) and Phosphorus (P), are critical for net 
primary 
productivity in agricultural and non-agricultural ecosystems and are 
consequently 
important for food and climate security. However, rising nutrient inputs to 
agricultural 
production and the biosphere has led to severe environmental issues. 
Quantifying nutrient 
budgets, including the nutrient inputs and outputs of a defined system or a 
spatial 
boundary, is an essential step towards sustainable nutrient management, and 
also provides 
critical inputs to agronomic, biogeochemical and climate models. Therefore, 
this session 
calls for research efforts on quantifying, analyzing, and/or projecting 
nutrient budgets on 
various system levels (e.g., crop and livestock production systems, integrated 
agro-food 
systems) and spatial scales (e.g., farms, watersheds, nations). This session 
aims to provide 
an opportunity to assess the advances and challenges in the existing nutrient 
budgeting 
methods and databases, and to engage discussions towards better quantification 
of 
nutrient budgets for various applications. 

Conveners:Xin Zhang (University of Maryland Center for Environmental Science), 
Luis 
Lassaletta (Technical University of Madrid), Nathaniel Mueller (University of 
California, 
Irvine), Josep Canadell (CSIRO Marine & Atmospheric Research), Rich Conant 
(Colorado 
State University)  
Time and location for AGU 2018: Dec. 10-14, Washington D.C. 
Submission Site: https://fallmeeting.agu.org/2018/abstract-submissions/ 
Submission Deadline: Wednesday, 1 August 23:59 EDT
Session ID: 48286 
Section/Focus Group: Global Environmental Change 
Cross-Listed: Societal Impacts and Policy Sciences, GeoHealth, Biogeosciences
Index Terms: 0402 Agricultural systems; 0470 Nutrients and nutrient cycling; 
1615 
Biogeochemical cycles, processes, and modeling; 1630 Impacts of global change
Contact: xin.zh...@umces.edu; luis.lassale...@upm.es

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