气候变化领域集成服务门户(CCPortal): Agroecological measures and circular economy strategies to ensure sufficient nitrogen for sustainable farming

CCPortal

DOI	10.1016/j.gloenvcha.2021.102313
	Agroecological measures and circular economy strategies to ensure sufficient nitrogen for sustainable farming
	Morais T.G.; Teixeira R.F.M.; Lauk C.; Theurl M.C.; Winiwarter W.; Mayer A.; Kaufmann L.; Haberl H.; Domingos T.; Erb K.-H.
发表日期	2021
ISSN	9593780
卷号	69
英文摘要	Sustainable food systems face trade-offs between demands of low environmental pressures per unit area and requirements of increasing production. Organic farming has lower yields than conventional agriculture and requires the introduction of nitrogen (N) fixing legumes in crop rotations. Here we perform an integrated assessment of the feasibility of future food systems in terms of land and N availability and the potential for reducing greenhouse gas (GHG) emissions. Results show that switching to 100% organic farming without additional measures results in N deficiency. Dietary change towards a reduced share of animal products can aggravate N limitations, which can be overcome through the implementation of a combination of agroecological, circular economy and decarbonization strategies. These measures help to recycle and transfer N from grassland. A vegan diet from fully decarbonized conventional production performs similarly as the optimized organic scenario. Sustainable food systems hence require measures beyond the agricultural sector. © 2021 Elsevier Ltd
关键词	Food systems Human diets Nutrient cycling Organic farming
英文关键词	agroecology; alternative agriculture; crop production; economic system; emission control; environmental factor; grassland; greenhouse gas; integrated approach; legume; nitrogen fixation; nutrient availability; nutrient limitation; organic farming; strategic approach; trade-off; Fabaceae
语种	英语
来源期刊	Global Environmental Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/205526
作者单位	MARETEC – Marine, Environment and Technology Centre, LARSyS, Instituto Superior Técnico, Universidade de Lisboa, Avenida Rovisco Pais 1, Lisboa, 1049-001, Portugal; Institute of Social Ecology (SEC), University of Natural Resources and Life Sciences, Vienna, Schottenfeldgasse 29, Vienna, 1070, Austria; Research Institute of Organic Agriculture, FiBL Austria, Doblhoffgasse 7/10, Vienna, 1010, Austria; International Institute for Applied Systems Analysis (IIASA), Schlossplatz 1, Laxenburg, A-2361, Austria; The Institute of Environmental Engineering, University of Zielona Góra, Licealna 9, Zielona Góra, 65-417, Poland
推荐引用方式 GB/T 7714	Morais T.G.,Teixeira R.F.M.,Lauk C.,et al. Agroecological measures and circular economy strategies to ensure sufficient nitrogen for sustainable farming[J],2021,69.
APA	Morais T.G..,Teixeira R.F.M..,Lauk C..,Theurl M.C..,Winiwarter W..,...&Erb K.-H..(2021).Agroecological measures and circular economy strategies to ensure sufficient nitrogen for sustainable farming.Global Environmental Change,69.
MLA	Morais T.G.,et al."Agroecological measures and circular economy strategies to ensure sufficient nitrogen for sustainable farming".Global Environmental Change 69(2021).