Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 433104
Title The phosphorus footprint of China's food chain: implications for food security, natural resource management, and environmental quality
Author(s) Wang, F.; Sims, J.T.; Ma, L.; Ma, W.; Dou, Z.; Zhang, F.
Source Journal of Environmental Quality 40 (2011)4. - ISSN 0047-2425 - p. 1081 - 1089.
DOI https://doi.org/10.2134/jeq2010.0444
Department(s) Sub-department of Soil Quality
PE&RC
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) nitrogen - system - flows - agriculture
Abstract Efficient use of phosphorus (P) for producing food, preventing water pollution, and managing a dwindling rock P reserve are major challenges for China. We analyzed P stocks and flows in the Chinese food chain to identify where P use efficiency can be improved, where P leaks to the environment, and the research, technologies, and policies needed to improve P use. We found a high degree of inefficiency; of 6652 Gg P entering the food chain, only 1102 Gg P (18%) exit as food for humans. The greatest inefficiencies were a large build-up of soil P (3670 Gg P yr-1; 52% of P inputs) and high P losses to the environment from animal production (1582 Gg P yr-1; 60% of excreted P). Improving P use in China must focus on national-scale nutrient management strategies, better animal nutrition, and adoption of technologies and policies to reduce P discharges from the animal sector and recycle P as manures in agriculture.
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