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Sökning: onr:"swepub:oai:DiVA.org:kth-249878" > Managing nitrogen t...

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FältnamnIndikatorerMetadata
00007152naa a2200601 4500
001oai:DiVA.org:kth-249878
003SwePub
008190423s2019 | |||||||||||000 ||eng|
024a https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-2498782 URI
024a https://doi.org/10.1038/s41586-019-1001-12 DOI
040 a (SwePub)kth
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Yu, ChaoQingu Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.;Cross Strait Tsinghua Res Inst, AI Earth Lab, Xiamen, Peoples R China.4 aut
2451 0a Managing nitrogen to restore water quality in China
264 c 2019-02-28
264 1b Nature Publishing Group,c 2019
338 a print2 rdacarrier
500 a QC 20190423
520 a The nitrogen cycle has been radically changed by human activities(1). China consumes nearly one third of the world's nitrogen fertilizers. The excessive application of fertilizers(2,3) and increased nitrogen discharge from livestock, domestic and industrial sources have resulted in pervasive water pollution. Quantifying a nitrogen 'boundary'(4) in heterogeneous environments is important for the effective management of local water quality. Here we use a combination of water-quality observations and simulated nitrogen discharge from agricultural and other sources to estimate spatial patterns of nitrogen discharge into water bodies across China from 1955 to 2014. We find that the critical surface-water quality standard (1.0 milligrams of nitrogen per litre) was being exceeded in most provinces by the mid-1980s, and that current rates of anthropogenic nitrogen discharge (14.5 +/- 3.1 megatonnes of nitrogen per year) to fresh water are about 2.7 times the estimated 'safe' nitrogen discharge threshold (5.2 +/- 0.7 megatonnes of nitrogen per year). Current efforts to reduce pollution through wastewater treatment and by improving cropland nitrogen management can partially remedy this situation. Domestic wastewater treatment has helped to reduce net discharge by 0.7 +/- 0.1 megatonnes in 2014, but at high monetary and energy costs. Improved cropland nitrogen management could remove another 2.3 +/- 0.3 megatonnes of nitrogen per year-about 25 per cent of the excess discharge to fresh water. Successfully restoring a clean water environment in China will further require transformational changes to boost the national nutrient recycling rate from its current average of 36 per cent to about 87 per cent, which is a level typical of traditional Chinese agriculture. Although ambitious, such a high level of nitrogen recycling is technologically achievable at an estimated capital cost of approximately 100 billion US dollars and operating costs of 18-29 billion US dollars per year, and could provide co-benefits such as recycled wastewater for crop irrigation and improved environmental quality and ecosystem services.
650 7a TEKNIK OCH TEKNOLOGIERx Annan teknik0 (SwePub)2112 hsv//swe
650 7a ENGINEERING AND TECHNOLOGYx Other Engineering and Technologies0 (SwePub)2112 hsv//eng
700a Huang, Xiaou Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.;Norwegian Inst Bioecon Res, Saerheim, Norway.4 aut
700a Chen, Hanu Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.4 aut
700a Godfray, H. Charles J.u Univ Oxford, Dept Zool, Oxford, England.;Univ Oxford, Oxford Martin Sch, Oxford, England.4 aut
700a Wright, Jonathon S.u Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.4 aut
700a Hall, Jim W.u Univ Oxford, Environm Change Inst, Oxford, England.4 aut
700a Gong, Pengu Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.;Cross Strait Tsinghua Res Inst, AI Earth Lab, Xiamen, Peoples R China.4 aut
700a Ni, ShaoQiangu Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.4 aut
700a Qiao, ShengChaou Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.4 aut
700a Huang, GuoRuiu Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.4 aut
700a Xiao, YuChenu Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.4 aut
700a Zhang, Jieu Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.4 aut
700a Feng, Zhaou Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.4 aut
700a Ju, XiaoTangu China Agr Univ, Coll Resources & Environm Sci, Beijing, Peoples R China.4 aut
700a Ciais, Philippeu LSCE, Gif Sur Yvette, France.4 aut
700a Stenseth, Nils Chr.u Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.;Univ Oslo, CEES, Oslo, Norway.4 aut
700a Hessen, Dag O.u Univ Oslo, Sect Aquat Biol & Toxicol AQUA, Oslo, Norway.4 aut
700a Sun, ZhanLiu Leibniz Inst Agr Dev Transit Econ IAMO, Halle, Saale, Germany.4 aut
700a Yu, Leu Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.4 aut
700a Cai, WenJiau Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.4 aut
700a Fu, HaoHuanu Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.4 aut
700a Huang, XiaoMengu Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.4 aut
700a Zhang, Chiu KTH,Skolan för kemi, bioteknologi och hälsa (CBH)4 aut0 (Swepub:kth)u17e9mik
700a Liu, HongBinu Chinese Acad Agr Sci, Inst Agr Resources & Reg Planning, Beijing, Peoples R China.4 aut
700a Taylor, Jamesu Newcastle Univ, Sch Nat & Environm Sci, Newcastle, England.4 aut
710a Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.;Cross Strait Tsinghua Res Inst, AI Earth Lab, Xiamen, Peoples R China.b Tsinghua Univ, Dept Earth Syst Sci, Minist Educ, Key Lab Earth Syst Modeling, Beijing, Peoples R China.;Norwegian Inst Bioecon Res, Saerheim, Norway.4 org
773t Natured : Nature Publishing Groupg 567:7749, s. 516-520q 567:7749<516-520x 0028-0836x 1476-4687
856u https://ora.ox.ac.uk/objects/uuid:405f7606-7e31-425a-b23c-04ff5e43c4b1/download_file?safe_filename=Yu_et_al_2019_managing_nitrogen_to_restore_water_quality_in.pdf&file_format=application%2Fpdf&type_of_work=Journal+article
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-249878
8564 8u https://doi.org/10.1038/s41586-019-1001-1

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