@article {88,
	title = {GROSS NITROGEN BALANCES HANDBOOK},
	year = {2007},
	month = {10/2007},
	pages = {24},
	institution = {OECD, EUROSTAT},
	keywords = {agriculture, methodology, nitrogen, nutrient},
	url = {http://www.oecd.org/department/0,3355,en_2649_33793_1_1_1_1_1,00.html},
	author = {OECD}
}
@article {Sutton2011a,
	title = {{Too much of a good thing.}},
	journal = {Nature},
	volume = {472},
	number = {7342},
	year = {2011},
	month = {apr},
	pages = {159{\textendash}61},
	keywords = {agriculture, Agriculture: economics, Animals, Biodiversity, Climate Change, Cost-Benefit Analysis, Diet, Environmental Pollution, Environmental Pollution: adverse effects, Environmental Pollution: analysis, Environmental Pollution: economics, Environmental Pollution: statistics {\&} numerical da, Fertilizers, Fertilizers: analysis, Food Supply, Fossil Fuels, Humans, International Cooperation, Meat, Meat: utilization, nitrogen, Nitrogen Fixation, Nitrogen: adverse effects, Nitrogen: analysis, Nitrogen: economics, Nitrogen: metabolism, Reactive Nitrogen Species, Reactive Nitrogen Species: adverse effects, Reactive Nitrogen Species: analysis, Reactive Nitrogen Species: chemistry, Reactive Nitrogen Species: metabolism},
	issn = {1476-4687},
	doi = {10.1038/472159a},
	url = {http://www.ncbi.nlm.nih.gov/pubmed/21478874},
	author = {Sutton, Mark A. and Oenema, Oene and Erisman, Jan Willem and Leip, Adrian and van Grinsven, Hans and Winiwarter, Wilfried}
}
@article {Leip2014,
	title = {{The nitrogen footprint of food products in the European Union}},
	journal = {The Journal of Agricultural Science},
	volume = {152},
	number = {S1},
	year = {2014},
	month = {oct},
	pages = {20{\textendash}33},
	keywords = {Footprint, mypublications, nitrogen, online},
	issn = {0021-8596},
	doi = {10.1017/S0021859613000786},
	url = {http://www.journals.cambridge.org/abstract{\_}S0021859613000786},
	author = {Leip, Adrian and Weiss, Franz and Lesschen, Jan Peter and Westhoek, Henk}
}
@article {Leip2014b,
	title = {{Nitrogen-neutrality: a step towards sustainability}},
	journal = {Environmental Research Letters},
	volume = {9},
	number = {11},
	year = {2014},
	month = {nov},
	pages = {115001},
	publisher = {IOP Publishing},
	keywords = {Footprint, mypublications, nitrogen},
	issn = {1748-9326},
	doi = {10.1088/1748-9326/9/11/115001},
	url = {http://stacks.iop.org/1748-9326/9/i=11/a=115001?key=crossref.e00563c757c6f69d0f81a98a7c54fa9c},
	author = {Leip, Adrian and Leach, Allison M. and Musinguzi, Patrick and Tumwesigye, Trust and Olupot, Giregon and Stephen Tenywa, John and Mudiope, Joseph and Hutton, Olivia and Cordovil, Claudia M.d.S. and Bekunda, Mateete and Galloway, James N.}
}
@article {Ozbek2015,
	title = {{Estimating the gross nitrogen budget under soil nitrogen stock changes: A case study for Turkey}},
	journal = {Agriculture, Ecosystems {\&} Environment},
	volume = {205},
	year = {2015},
	month = {jul},
	pages = {48{\textendash}56},
	keywords = {agricultural production, budget, carbon, mypublications, nitrogen, soil},
	issn = {01678809},
	doi = {10.1016/j.agee.2015.03.008},
	url = {http://linkinghub.elsevier.com/retrieve/pii/S0167880915000924},
	author = {{\"O}zbek, Fethi {\c S}aban and Leip, Adrian}
}
@article {Hutton2017,
	title = {{Toward a nitrogen footprint calculator for Tanzania}},
	journal = {Environmental Research Letters},
	volume = {12},
	number = {3},
	year = {2017},
	abstract = {{\textcopyright} 2017 IOP Publishing Ltd.We present the first nitrogen footprint model for a developing country: Tanzania. Nitrogen (N) is a crucial element for agriculture and human nutrition, but in excess it can cause serious environmental damage. The Sub-Saharan African nation of Tanzania faces a two-sided nitrogen problem: while there is not enough soil nitrogen to produce adequate food, excess nitrogen that escapes into the environment causes a cascade of ecological and human health problems. To identify, quantify, and contribute to solving these problems, this paper presents a nitrogen footprint tool for Tanzania. This nitrogen footprint tool is a concept originally designed for the United States of America (USA) and other developed countries. It uses personal resource consumption data to calculate a per-capita nitrogen footprint. The Tanzania N footprint tool is a version adapted to reflect the low-input, integrated agricultural system of Tanzania. This is reflected by calculating two sets of virtual N factors to describe N losses during food production: one for fertilized farms and one for unfertilized farms. Soil mining factors are also calculated for the first time to address the amount of N removed from the soil to produce food. The average per-capita nitrogen footprint of Tanzania is 10 kg N yr-1. 88{\%} of this footprint is due to food consumption and production, while only 12{\%} of the footprint is due to energy use. Although 91{\%} of farms in Tanzania are unfertilized, the large contribution of fertilized farms to N losses causes unfertilized farms to make up just 83{\%} of the food production N footprint. In a developing country like Tanzania, the main audiences for the N footprint tool are community leaders, planners, and developers who can impact decision-making and use the calculator to plan positive changes for nitrogen sustainability in the developing world.},
	keywords = {nitrogen, nitrogen footprint, Sub-Saharan Africa, Tanzania},
	issn = {17489326},
	doi = {10.1088/1748-9326/aa5c42},
	author = {Hutton, M.O. and Leach, Allison M. and Leip, Adrian and Galloway, James N. and Bekunda, M. and Sullivan, C. and Lesschen, J.P.}
}
@article {Leip2019a,
	title = {{Nitrogen Footprints}},
	journal = {Encyclopedia of Ecology},
	volume = {4},
	number = {2012},
	year = {2019},
	pages = {370{\textendash}382},
	publisher = {Elsevier Inc.},
	edition = {2},
	abstract = {N is one of essential element of life on earth, but it contributes in its reactive form to the global environmental problems that are already larger than our earth is able to cope with, and it expected further aggravate (Galloway and Leach, 2016) driven by the increasing demand of food products fuelled by growth of human population, rising incomes and urbanization. The quantification of N footprints at production level can support decision and policy making in the economy, by raising awareness of different stakeholders such as farmers, industrial actors, businesses, governments and scientists on the global threats of anthropogenic activities. These stakeholders have responsibility to reduce the environmental pressures by continuous improvement of the production system through technology and innovation. N footprint is also a tool to inform consumers on the impact of their lifestyle choices on the N pollution, which is essential to share the responsibility in protecting the planet. Raising awareness to all stakeholders and consumers at all levels will help to reduce the N footprint.},
	keywords = {agriculture, Consumption, Energy, Food, Footprints, nitrogen, Production},
	isbn = {9780124095489},
	doi = {10.1016/B978-0-12-409548-9.10753-5},
	url = {http://dx.doi.org/10.1016/B978-0-12-409548-9.10753-5 https://linkinghub.elsevier.com/retrieve/pii/B9780124095489107535},
	author = {Leip, Adrian and Uwizeye, Aimable}
}
