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Biogeosciences An interactive open-access journal of the European Geosciences Union
doi:10.5194/bg-2016-543
© Author(s) 2017. This work is distributed
under the Creative Commons Attribution 3.0 License.
Research article
04 Jan 2017
Review status
A revision of this discussion paper was accepted for the journal Biogeosciences (BG) and is expected to appear here in due course.
Spatiotemporal dynamics of soil phosphorus and crop uptake in global cropland during the twentieth century
Jie Zhang1, Arthur H. W. Beusen2,3, Dirk F. van Apeldoorn2,4, José M. Mogollón2, Chaoqing Yu1, and Alexander F. Bouwman2,3 1Department of Earth System Science, Tsinghua University, Beijing, 100084, China
2Department of Earth Sciences-Geosciences, Faculty of Geosciences, Utrecht University, P.O. Box 80021, 3508 TA Utrecht, The Netherlands
3PBL Netherlands Environmental Assessment Agency, P.O. Box 30314, 2500 GH The Hague, The Netherlands
4Department of Plant Sciences, Wageningen University, P.O. Box 430, 6700 AK Wageningen, The Netherlands
Abstract. Phosphorus (P) plays a vital role in global crop production and food security. In this study, we investigate the changes in soil P pools and crop P uptake, using a 0.5 by 0.5 degree spatially explicit model for the period 1900–2010. The simulated country-scale crop P uptake agrees well with historical P uptake. Simulated crop P uptake is influenced by both soil properties (available P and the P retention potential) and crop characteristics (maximum uptake). Until 1950, P fertilizer application had a negligible influence on crop uptake, but recently it has become a driving factor for food production in industrialized countries and a number of transition countries like Brazil, Korea and China. Globally, the total P pool per hectare increased rapidly between 1900 and 2010 in soils of Europe (+31 %), South America (+2 %), North America (+15 %), Asia (+17 %) and Oceania (+17 %), while it has been stable in Africa. This comprehensive and spatially explicit model can be used to assess the dynamics of soil P inventories, which serve as indicators for soil fertility and productivity.

Citation: Zhang, J., Beusen, A. H. W., van Apeldoorn, D. F., Mogollón, J. M., Yu, C., and Bouwman, A. F.: Spatiotemporal dynamics of soil phosphorus and crop uptake in global cropland during the twentieth century, Biogeosciences Discuss., doi:10.5194/bg-2016-543, in review, 2017.
Jie Zhang et al.
Jie Zhang et al.

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This modelling study investigates the changes in soil P pools and crop P uptake, using a 0.5 by 0.5 degree spatially explicit model for the period 1900–2010. The simulated country-scale crop P uptake agrees well with historical P uptake. This comprehensive and spatially explicit model can be used to assess the dynamics of soil P inventories, which serve as indicators for soil fertility and productivity.
This modelling study investigates the changes in soil P pools and crop P uptake, using a 0.5 by...
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