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Evaluating regional variation of net anthropogenic nitrogen and phosphorus inputs (NANI/NAPI), major drivers, nutrient retention pattern and management implications in the multinational areas of Baltic Sea basin

Author

Listed:
  • Hong, Bongghi
  • Swaney, Dennis P.
  • Mörth, Carl-Magnus
  • Smedberg, Erik
  • Eriksson Hägg, Hanna
  • Humborg, Christoph
  • Howarth, Robert W.
  • Bouraoui, Fayçal

Abstract

The NANI/NAPI (net anthropogenic nitrogen/phosphorus input) Calculator Toolbox described in this paper is designed to address the consequences to Baltic Sea nutrient loads of the significant variation in agronomic practices and dietary preferences among European countries whose watersheds comprise the Baltic Sea basin. A primary objective of this work is to develop regional parameters and datasets for this budgeting tool. A previous version of the toolbox was applied to the entire contiguous United States to calculate NANI and its components (atmospheric N deposition, fertilizer N application, agricultural N fixation and N in net food and feed imports). Here, it is modified for application to the Baltic Sea catchments, where coastal watersheds from several countries are draining to international waters. A similar accounting approach is taken for calculating NAPI, which includes fertilizer P application, P in net food and feed imports and non-food use of P by human. Regional variation of NANI/NAPI parameters (agricultural fixation rates, human intake rates and livestock intake and excretion rates) are estimated, and their impact on the regional nutrient budget and the riverine nutrient flux is evaluated. There is a distinct north-to-south gradient in NANI and NAPI across the Baltic Sea catchments, and regional nutrient inputs are strongly related to riverine nutrient fluxes. Analysis of regional nutrient retention pattern indicates that, for some countries, compliance to the Baltic Sea Action Plan would imply enormous changes in the agricultural sector.

Suggested Citation

  • Hong, Bongghi & Swaney, Dennis P. & Mörth, Carl-Magnus & Smedberg, Erik & Eriksson Hägg, Hanna & Humborg, Christoph & Howarth, Robert W. & Bouraoui, Fayçal, 2012. "Evaluating regional variation of net anthropogenic nitrogen and phosphorus inputs (NANI/NAPI), major drivers, nutrient retention pattern and management implications in the multinational areas of Balti," Ecological Modelling, Elsevier, vol. 227(C), pages 117-135.
    • Handle: RePEc:eee:ecomod:v:227:y:2012:i:c:p:117-135
    DOI: 10.1016/j.ecolmodel.2011.12.002
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    Cited by:

    1. Cen Meng & Yi Wang & Yuyan Li & Jiaogen Zhou & Yong Li & Jinshui Wu, 2017. "Deteriorated Water Quality of Agricultural Catchments in South China by Net Anthropogenic Phosphorus Inputs," Sustainability, MDPI, vol. 9(9), pages 1-11, August.
    2. Xia Cui & Caizhu Huang & Jiapeng Wu & Xiaohan Liu & Yiguo Hong, 2020. "Temporal and spatial variations of net anthropogenic nitrogen inputs (NANI) in the Pearl River Basin of China from 1986 to 2015," PLOS ONE, Public Library of Science, vol. 15(2), pages 1-14, February.
    3. Mikaela Algren & Christine Costello & Amy E. Landis, 2022. "Phosphorus (P) in animal diets as a driver of embodied P in animal products and net anthropogenic P inputs," Journal of Industrial Ecology, Yale University, vol. 26(3), pages 1123-1135, June.
    4. Maria Cunha & João Marques & José Azevedo & Ana Castilho, 2021. "Understanding the Impact of a Major Hydro-Agricultural Project in Low Mondego Area (Portugal)," Land, MDPI, vol. 10(2), pages 1-28, January.
    5. Sundblad, Eva-Lotta & Grimvall, Anders & Gipperth, Lena & Morf, Andrea, 2014. "Structuring social data for the Marine Strategy Framework Directive," Marine Policy, Elsevier, vol. 45(C), pages 1-8.

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