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https://doi.org/10.5194/essd-2020-185
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/essd-2020-185
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

  11 Sep 2020

11 Sep 2020

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This preprint is currently under review for the journal ESSD.

Production and application of manure nitrogen and phosphorus in the United States since 1860

Zihao Bian1, Hanqin Tian1, Qichun Yang2, Rongting Xu1, Shufen Pan1, and Bowen Zhang3 Zihao Bian et al.
  • 1International Center for Climate and Global Change Research, School of Forestryand Wildlife Sciences, Auburn University, Auburn, AL 36849, USA
  • 2Department of Infrastructure Engineering, The University of Melbourne, Parkville 3010, Australia
  • 3Department of Environment, Geology, and Natural Resources, Ball State University, Muncie, IN 47306, USA

Abstract. Livestock manure, as a recyclable source for nitrogen (N) and phosphorus (P) in the Soil-Plant-Animal system, plays an important role in nutrient cycling. Given the agricultural benefits and environmental pollutants brought by manure, it is of great importance to estimate the spatial variations and temporal trajectories of manure production and its application in croplands of the contiguous United States (U.S.). Here, we developed datasets of annual animal manure N and P production and application in the contiguous U.S. at a 30 arc-second resolution over the period of 1860–2017. The total production of manure N and P increased from 1.4 Tg N yr−1 and 0.3 Tg P yr−1 in 1860 to 7.4 Tg N yr−1 and 2.3 Tg P yr−1 in 2017. The increasing manure nutrient production was associated with increased livestock numbers before the 1980s and enhanced livestock weights after the 1980s. The high-nutrient region mainly enlarged from the Midwest toward the Southern U.S., and became more concentrated in numerous hot spots after the 1980s. The South Atlantic-Gulf and Mid-Atlantic basins were the two critical coastal regions with high environmental risks due to the enrichment of manure nutrient production and application from the 1970s to 2010s. Our long-term manure N and P datasets provide critical information for national and regional assessments of nutrient budgets. Additionally, the datasets can serve as the input data for ecosystem and hydrological models to examine biogeochemical cycles in terrestrial and aquatic ecosystems. Datasets are available at https://doi.org/10.1594/PANGAEA.919937 (Bian et al., 2020).

Zihao Bian et al.

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Zihao Bian et al.

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Gridded datasets of animal manure nitrogen and phosphorus production and application in the continental U.S. from 1860 to 2017 Zihao Bian, Hanqin Tian, Qichun Yang, Rongting Xu, Shufen Pan, and Bowen Zhang https://doi.org/10.1594/PANGAEA.919937

Zihao Bian et al.

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Short summary
Estimating the production and application of manure nutrient can promote the efficiently use of manure nutrient while minimize environmental impact. This study developed four manure nitrogen and phosphorus datasets with high spatial resolution and long time period. Manure nutrient production in the U.S. increased since 1860, driven by increased livestock numbers and weights. The datasets provide useful information for stakeholders and scientists who focus on agriculture and biogeochemical cycle.
Estimating the production and application of manure nutrient can promote the efficiently use of...
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