Biogeosciences
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Articles | Volume 21, issue 11
Articles | Volume 21, issue 11
https://doi.org/10.5194/bg-21-2655-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Special issue:
https://doi.org/10.5194/bg-21-2655-2024
© Author(s) 2024. This work is distributed under
the Creative Commons Attribution 4.0 License.
Articles | Volume 21, issue 11
Research article
 | 
04 Jun 2024
Research article |  | 04 Jun 2024

Long-term fertilization increases soil but not plant or microbial N in a Chihuahuan Desert grassland

Violeta Mendoza-Martinez, Scott L. Collins, and Jennie R. McLaren

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Latest update: 23 Nov 2024
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Short summary
We examine the impacts of multi-decadal nitrogen additions on a dryland ecosystem N budget, including the soil, microbial, and plant N pools. After 26 years, there appears to be little impact on the soil microbial or plant community and only minimal increases in N pools within the soil. While perhaps encouraging from a conservation standpoint, we calculate that greater than 95 % of the nitrogen added to the system is not retained and is instead either lost deeper in the soil or emitted as gas.
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Ecosystem experiments as a window to future carbon, water,...
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