[1] Leyen U von der. Turning challenge into opportunity on the course to becoming the first climate-neutral continent: Press release. [January 20, 2020]; Available from: https://ec.europa.eu/commission/presscorner/detail/en/AC_19_6778.
[2] German Environment Agency (UBA). Climate Protection Goals in Germany. [January 20, 2020]; Available from: https://www.umweltbundesamt.de/daten/klima/klimaschutzziele-deutschlands.
[3] Federal Ministry for the Environment, Nature Conservation and Nuclear Safety. Climate Action Plan 2050 – Germany's long-term emission development strategy. [January 20, 2020]; Available from: https://www.bmu.de/en/topics/climate-energy/climate/national-climate-policy/greenhouse-gas-neutral-germany-2050/.
[4] The Federal Government. Climate Protection Act and amending other regulations: KSG; 2019.
[5] German Environment Agency (UBA). GHG Mitigation Goals Germany: Provision of annual raw data as xls. [June 19, 2020]; Available from: https://www.umweltbundesamt.de/daten/klima/treibhausgasminderungsziele-deutschlands.
[6] Lenz B, Aigner M, Baumann E, Moctar BOe, Hauptmeier K, Kaltschmitt M et al. Electromobility, Fuel Cell, Alternative Fuels - Application Options from Technological Perspective: Working Group 2 "Alternative Engines and Fuels for Sustainable Mobility. National Platform for Future Mobility (NPM). [January 20, 2020]; Available from: https://www.plattform-zukunft-mobilitaet.de/wp-content/uploads/2019/11/NPM_Bericht_AG2_112019_Web.pdf.
[7] Millinger M, Meisel K, Thrän D. Greenhouse gas abatement optimal deployment of biofuels from crops in Germany. Transportation Research Part D: Transport and Environment 2019;69:265–75.
[8] Millinger M, Meisel K, Budzinski M, Thrän D. Relative Greenhouse Gas Abatement Cost Competitiveness of Biofuels in Germany. Energies 2018;11(3):615.
[9] Meisel K, Millinger M, Naumann K, Majer S, Müller-Langer F, Thrän D. Studies on the design of biofuel legislation in Germany: Working Paper 04.07.2019. [January 31, 2020]; Available from: https://www.dbfz.de/fileadmin/user_upload/Referenzen/Studien/Ausgestaltung_Biokraftstoffgesetzgebung.pdf.
[10] Thrän D, Schaubach K, Majer S, Horschig T. Governance of sustainability in the German biogas sector—adaptive management of the Renewable Energy Act between agriculture and the energy sector. Energ Sustain Soc 2020;10(1):477.
[11] European Parliament, Council of the European Union. DIRECTIVE (EU) 2018/2001 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 11 December 2018 on the promotion of the use of energy from renewable sources (recast); 2018.
[12] Federal Ministry of Education and Research (BMBF), Federal Ministry of Food and Agriculture (BMEL). National Bioeconomy Strategy: Summary. [January 27, 2020]; Available from: https://www.bmbf.de/files/neue%20nationale%20bio%c3%b6konomiestrategie.pdf.
[13] Brosowski A, Krause T, Mantau U, Mahro B, Noke A, Richter F et al. How to measure the impact of biogenic residues, wastes and by-products: Development of a national resource monitoring based on the example of Germany. Biomass and Bioenergy 2019;127:105275.
[14] Deutsches Biomasseforschungszentrum gemeinnützige GmbH (DBFZ). DBFZ - Resource Database: Stand am 27.01.2020. [January 27, 2020]; Available from: http://webapp.dbfz.de/resources.
[15] Edel M, Jegal J, Siegemund S, Schmidt P, Weindorf W. Bio-LNG - a renewable and low-emission alternative in the road freight and water transport: Potentials, economic efficiency and instruments. [January 28, 2020]; Available from: https://www.dena.de/fileadmin/dena/Publikationen/PDFs/2019/dena-Studie_Bio_LNG.pdf.
[16] Lowell D, Wang H, Lutsey N. Assessment of the fuel cycle impact of liquefied natural gas as used in international shipping: White paper. [June 19, 2020]; Available from: https://theicct.org/sites/default/files/publications/ICCTwhitepaper_MarineLNG_130513.pdf.
[17] Scholwin F, Grope J, Clinkscales A, Boshell F, Saygin D, Salgado A et al. Biogas for road vehicles: Technology brief. [June 18, 2020]; Available from: https://www.irena.org/-/media/Files/IRENA/Agency/Publication/2017/Mar/IRENA_Biogas_for_Road_Vehicles_2017.pdf.
[18] Federal Ministry of Food and Agriculture (BMEL). Harvest 2019: Quantities and Prices. [February 23, 2020]; Available from: https://www.bmel.de/SharedDocs/Downloads/Landwirtschaft/Markt-Statistik/Ernte2019Bericht.pdf?__blob=publicationFile.
[19] Food and Agriculture Organization (FAO). Crop production in Germany 1961-2017: Area harvested, yield and production quantity on wheat, rye, barley, oats, triticale. [January 27, 2020]; Available from: http://www.fao.org/faostat/en/#data/QC.
[20] German Weather Service (DWD). German Climate Atlas: Anomalies in Precipitation 2002. [January 30, 2020]; Available from: https://www.dwd.de/EN/climate_environment/climateatlas/climateatlas_node.html.
[21] German Weather Service (DWD). German Climate Atlas: Anomalies in Precipitation 2003. [January 30, 2020]; Available from: https://www.dwd.de/EN/climate_environment/climateatlas/climateatlas_node.html.
[22] German Weather Service (DWD). German Climate Atlas: Anomalies in Precipitation 2007. [January 30, 2020]; Available from: https://www.dwd.de/EN/climate_environment/climateatlas/climateatlas_node.html.
[23] German Weather Service (DWD). German Climate Atlas: Anomalies in Precipitation 2011. [January 30, 2020]; Available from: https://www.dwd.de/EN/climate_environment/climateatlas/climateatlas_node.html.
[24] German Weather Service (DWD). German Climate Atlas: Anomalies in Air Temperature 2018. [January 30, 2020]; Available from: https://www.dwd.de/EN/climate_environment/climateatlas/climateatlas_node.html.
[25] German Weather Service (DWD). German weather in summer 2018. [January 30, 2020]; Available from: https://www.dwd.de/DE/presse/pressemitteilungen/DE/2018/20180830_deutschlandwetter_sommer_news.html.
[26] Weiser C, Zeller V, Reinicke F, Wagner B, Majer S, Vetter A et al. Integrated assessment of sustainable cereal straw potential and different straw-based energy applications in Germany. Applied Energy 2014;114.
[27] Scarlat N, Fahl F, Lugato E, Monforti-Ferrario F, Dallemand JF. Integrated and spatially explicit assessment of sustainable crop residues potential in Europe. Biomass and Bioenergy 2019;122:257–69.
[28] Lindner M, Dees MG, Anttila P, Verkerk PJ, Fitzgerald J, Datta P et al. Assessing Lignocellulosic Biomass Potentials From Forests and Industry. In: Modeling and Optimization of Biomass Supply Chains: Elsevier; 2017, p. 127–167.
[29] Knebl L, Blumenstein B, Möller D, Wufka A, Brock C, Gattinger A. Soil turnover of cereal straw and fermentation residues of varying quality from straw fermentation: 15. Science Conference Ecologic Farming, Innovative thinking for a sustainable agriculture and food industry, Contributions to the 15th Scientific Conference on Organic Farming. [February 05, 2020]; Available from: https://orgprints.org/36243/.
[30] Blumenstein B, Knebl L, Gattinger A, Brock, Christopher, Wufka, André, Möller D. "Straw makes distance": On the economic efficiency of the (over-)operational logistics of Corg: 15. Science Conference Ecologic Farming 05.-08.03.2019, Innovative thinking for a sustainable agriculture and food industry, Contributions to the 15th Scientific Conference on Organic Farming. [February 05, 2020]; Available from: https://orgprints.org/36218/.
[31] Reinhold G. Points of view - Straw fermentation in agricultural biogas plants. [February 05, 2020]; Available from: http://www.tll.de/www/daten/publikationen/standpunkte/st_bstroh.pdf.
[32] European Commission. Second NER 300 low-carbon project kicks off. [January 28, 2020]; Available from: https://ec.europa.eu/clima/news/articles/news_2015041501_en.
[33] Bill R. Grundlagen der Geo-Informationssysteme: 6. Auflage. Berlin: Wichmann; 2016.
[34] European Parliament, Council of the European Union. Regulation (EC) No 1059/2003 of the European Parliament and of the Council of 26 May 2003 on the establishment of a common classification of territorial units for statistics (NUTS). [February 01, 2020]; Available from: https://eur-lex.europa.eu/legal-content/EN/TXT/PDF/?uri=CELEX:02003R1059-20180118&from=EN.
[35] Federal Agency for Cartography and Geodesy (BKG). Administrative areas 1:250 000 (levels), as of 01.01. (VG250 01.01.). [February 05, 2020]; Available from: https://gdz.bkg.bund.de/index.php/default/digitale-geodaten/verwaltungsgebiete/verwaltungsgebiete-1-250-000-ebenen-stand-01-01-vg250-ebenen-01-01.html.
[36] Statistical Offices of the Federal Government and the Federal States. Yields of selected agricultural crops - 2009-2018 - regional depth: districts and cities: Harvest statistics, yields per hectare, Code table 41241-01-03-4. [January 29, 2020]; Available from: www.regionalstatistik.de.
[37] Statistical Offices of the Federal Government and the Federal States. Cultivation on arable land in agricultural farms by type of crop - 2010, 2016 - regional depth: districts and cities: Agricultural structure survey, Agricultural census, Code table 41141-02-02-4. [January 29, 2020]; Available from: www.regionalstatistik.de.
[38] Federal Ministry of Justice and Consumer Protection (BMJV). Ordinance on the use of fertilisers, soil additives, growing media and plant additives in accordance with the principles of good fertilisation practice: DüV, 26. Mai 2017 (BGBl. I S. 1305). [January 29, 2020]; Available from: https://www.gesetze-im-internet.de/d_v_2017/index.html#BJNR130510017BJNE002500000.
[39] Statistical Offices of the Federal Government and the Federal States. Cattle population 2009-2018, regional depth: districts and cities: Cattle population survey, Code table 41312-01-01-4. [January 29, 2020]; Available from: www.regionalstatistik.de.
[40] Statistical Offices of the Federal Government and the Federal States. Agricultural farms with livestock farming and number of animals - 2010, 2016 - regional depth: districts and cities: Agricultural structure survey, Agricultural census, Code table 41141-03-01-4. [January 29, 2020]; Available from: www.regionalstatistik.de.
[41] Statistical Office of the Federal Government (DESTATIS). Animals housed: federal states, 1950-2018, animal types: General representative livestock survey, Code table 41311-0002. [January 29, 2020]; Available from: www.destatis.de.
[42] Uhl C. Investigations into the suitability of horse manure as Biofuel: Doctoral thesis. [January 29, 2020]; Available from: https://mediatum.ub.tum.de/doc/1444447/1444447.pdf.
[43] Statistical Office of the Federal Government (DESTATIS). Agriculture, forestry and fisheries: Animal manure, stable farming, grazing, agricultural census/agricultural structure survey 2010. [January 29, 2020]; Available from: https://www.destatis.de/DE/Themen/Branchen-Unternehmen/Landwirtschaft-Forstwirtschaft-Fischerei/Produktionsmethoden/Publikationen/Downloads-Produktionsmethoden/stallhaltung-weidehaltung-2032806109004.pdf?__blob=publicationFile.
[44] Fuchs C, Schuldt A, Kasten J (eds.). Horse farming: Planning and calculation. Darmstadt: KTBL; 2012.
[45] Statistical Office of the Federal Government (DESTATIS). Area under cultivation (vegetables and strawberries): federal states, 1950-2018, vegetables in the open field: Vegetable harvest, area under cultivation, Code table 41215-0008. [January 29, 2020]; Available from: www.destatis.de.
[46] Statistical Office of the Federal Government (DESTATIS). Area under cultivation (vegetables and strawberries): federal states, 1950-2018, vegetables under foil: Vegetable harvest, area under cultivation, Code table 41215-0006. [January 29, 2020]; Available from: www.destatis.de.
[47] Balmer M. Orchards: Business management and technical production calculations. 4th ed. Darmstadt: Kuratorium für Technik und Bauwesen in der Landwirtschaft; 2010.
[48] Statistical Office of the Federal Government (DESTATIS). Farms, harvest area, harvest quantity (edible mushrooms): Germany, 2012-2018, edible mushroom species: Mushroom harvest, Code table 41214-0001. [January 29, 2020]; Available from: www.destatis.de.
[49] Horticulture: Outdoor and Greenhouse. Darmstadt: KTBL; 2017.
[50] Landpack GmbH. Straw based packaging. [February 05, 2020]; Available from: https://landpack.de/en.
[51] Knüppel E, Gurgel A, Hansen H. Straw heating system Gülzow: Demonstration of a straw heating system with local heating network. [February 05, 2020]; Available from: https://mediathek.fnr.de/media/downloadable/files/samples/b/r/brosch_re_strohheizanlage_web.pdf.
[52] Sauter C, Lüdtke O, Niesmann T, Sauter B. Biomethane from straw: EU Funded Project „DE BIOH Verbiostraw“ Production of biomethane from 100% straw. [February 28, 2018]; Available from: https://www.verbio.de/en/products/verbiogas/biomethane-from-straw/.
[53] Clariant GmbH. Cellulosic Ethanol from Agricultural Residues: Think Sunliquid (R). [February 05, 2020]; Available from: https://www.clariant.com/de/Business-Units/New-Businesses/Biotech-and-Biobased-Chemicals/Sunliquid.
[54] Klüßendorf-Feiffer A. Thrust suitability as a central control variable in harvest management: Using the example of four process engineering approaches. PhD Thesis. [February 05, 2020]; Available from: http://d-nb.info/996979158.
[55] Minol K. Plants in focus: Pinboard - all research relevant plants at a glance. [February 05, 2020]; Available from: https://www.pflanzenforschung.de/de/themen/pflanzen-im-fokus/.
[56] Forstreuter T. Types of Cereals. [February 05, 2020]; Available from: https://www.bauernhof.net/die-getreidearten/.
[57] Statistical Office of the Federal Government (DESTATIS). Agricultural farms with livestock: Livestock: federal states, reference date, animal species, Code table 41141-0019 (Tier-5). [February 04, 2020]; Available from: www.destatis.de.
[58] Majer S, Oehmichen K, Kirchmeyr F, Scheidl S. Calculation of GHG emission caused by biomethane: Biosurf - Fueling Biomethane, D5.3. [January 28, 2020]; Available from: http://www.biosurf.eu/wordpress/wp-content/uploads/2015/07/BIOSURF-D5.3.pdf.
[59] Döhler H (ed.). Key-figures biogas. 3rd ed. Darmstadt: KTBL; 2013.
[60] Lüdtke, Oliver (COO Verbio AG). Plant specific base data. Email. Leipzig; 2020.
[61] Bavarian State Institute for Agriculture (LfL). Biogas yields of 350 substrates. [December 10, 2018]; Available from: https://www.lfl.bayern.de/iba/energie/049711/.
[62] Kaltschmitt M, Hartmann H, Hofbauer H (eds.). Energie aus Biomasse: Grundlagen, Techniken und Verfahren. 2nd ed. Berlin: Springer; 2009.
[63] Federal Ministry of Transport and Digital Infrastructure (BMVI). Transport Sector in Figures 2019/2020: Volume 48. [January 31, 2020]; Available from: https://www.bmvi.de/SharedDocs/DE/Publikationen/G/verkehr-in-zahlen-2019-pdf.pdf?__blob=publicationFile.
[64] Working Group of the Cadastral Surveying Authorities of the States of the Federal Republic of Germany (AdV). Documentation to Modelling of the geoinformation of cadastral surveying (GeoInfoDok): Main Document Version 6.0. [January 31, 2020]; Available from: http://www.adv-online.de/GeoInfoDok/binarywriterservlet?imgUid=42b23fd2-1153-911a-3b21-718a438ad1b2&uBasVariant=11111111-1111-1111-1111-111111111111.
[65] Federal Agency for Cartography and Geodesy (BKG). Digital Basic Landscape Model (levels) (Basis-DLM). [February 05, 2020]; Available from: https://gdz.bkg.bund.de/index.php/default/digitale-geodaten/digitale-landschaftsmodelle/digitales-basis-landschaftsmodell-ebenen-basis-dlm-ebenen.html.
[66] Federal Agency for Cartography and Geodesy (BKG). Digital Landscape Model 1:250 000 (levels) (DLM250): Open Data. [February 05, 2020]; Available from: https://gdz.bkg.bund.de/index.php/default/open-data/digitales-landschaftsmodell-1-250-000-ebenen-dlm250-ebenen.html.
[67] Federal Agency for Cartography and Geodesy (BKG). Digital Landscape Model 1:1 000 000 (levels) (DLM1000): Open Data. [February 05, 2020]; Available from: https://gdz.bkg.bund.de/index.php/default/open-data/digitales-landschaftsmodell-1-1-000-000-ebenen-dlm1000-ebenen.html.
[68] Working Group of the Cadastral Surveying Authorities of the States of the Federal Republic of Germany (AdV). Official Real Estate Cadastre Information System (ALKIS). [February 05, 2020]; Available from: http://www.adv-online.de/AdV-Produkte/Liegenschaftskataster/ALKIS/.
[69] European Environment Agency (EEA). CORINE Land Cover 1990, 2000, 2006, 2012, 2018. [February 05, 2020]; Available from: https://land.copernicus.eu/pan-european/corine-land-cover.
[70] Federal Agency for Cartography and Geodesy (BKG). Corine Land Cover 10 ha (CLC10): Open Data. [February 05, 2020]; Available from: https://gdz.bkg.bund.de/index.php/default/open-data/corine-land-cover-10-ha-clc10.html.
[71] Federal Ministry of Justice and Consumer Protection (BMJV). Regulation on the implementation of support schemes and the Integrated Administration and Control System (InVeKoSV). [February 05, 2020]; Available from: https://www.gesetze-im-internet.de/invekosv_2015/BJNR016610015.html.
[72] Pfeiffer A, Mertens, Anja, Brosowski, André, Thrän D. Marktschreier 4.0 - The straw market in Germany. [January 28, 2020]; Available from: https://www.dbfz.de/fileadmin//user_upload/Referenzen/Broschueren/DBFZ_Strohmarkt_in_Deutschland.pdf.
[73] Statistical Office of the Federal Government (DESTATIS). Agricultural census 2020. [February 05, 2020]; Available from: https://www.destatis.de/DE/Themen/Branchen-Unternehmen/Landwirtschaft-Forstwirtschaft-Fischerei/Landwirtschaftszaehlung2020/_inhalt.html.
[74] Schumacher B. Investigations into processing and conversion of energy crops into biogas and bioethanol. Zugl.: Hohenheim, Univ., Diss, 2008. Berlin: mbv; 2008.
[75] Pohl M, Mumme J, Heeg K, Nettmann E. Thermo- and mesophilic anaerobic digestion of wheat straw by the upflow anaerobic solid-state (UASS) process. Bioresource technology 2012;124:321–7.
[76] Bill R, Lorenzen-Zabel A, Hinz M, Kalcher J, Pfeiffer A, Brosowski A et al. OpenGeoEdu – A massive open online course on using open geodata. International Archives (to be printed in 2020).