{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,31]],"date-time":"2025-10-31T22:10:45Z","timestamp":1761948645639,"version":"build-2065373602"},"reference-count":72,"publisher":"MDPI AG","issue":"16","license":[{"start":{"date-parts":[[2020,8,18]],"date-time":"2020-08-18T00:00:00Z","timestamp":1597708800000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100001871","name":"Funda\u00e7\u00e3o para a Ci\u00eancia e a Tecnologia","doi-asserted-by":"publisher","award":["SFRH\/BD\/52691\/2014","UIDB\/00239\/2020)"],"award-info":[{"award-number":["SFRH\/BD\/52691\/2014","UIDB\/00239\/2020)"]}],"id":[{"id":"10.13039\/501100001871","id-type":"DOI","asserted-by":"publisher"}]},{"name":"AGFORWARD project","award":["European Community\u2019s Seventh Framework Programme under Grant Agreement No. 613520"],"award-info":[{"award-number":["European Community\u2019s Seventh Framework Programme under Grant Agreement No. 613520"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Sustainability"],"abstract":"<jats:p>Agroforestry systems have been compared to agricultural and forestry alternatives, providing a land-use solution for additional environmental benefits while maintaining similar levels of productivity. However, there is scarce research assessing such patterns across a pan-European scale using a common methodology. This study aims to improve our understanding of the role of trees in three different regulating ecosystem services\u2014(1) soil erosion, (2) nitrate leaching and (3) carbon sequestration\u2014in traditional and innovative agroforestry systems in Europe through a consistent modeling approach. The systems\u2019 assessment spans environmentally from the Mediterranean environmental region in Portugal to the Continental environmental region in Switzerland and Germany to the Atlantic environmental region in the United Kingdom. Modeled tree densities were compared in the different land-use alternatives, ranging from zero (agriculture with only crops or pasture) to forestry (only trees). The methodology included the use of a biophysical model (Yield-SAFE) where the quantification of the environmental benefits was integrated. Results show a consistent improvement of regulating ecosystem services can be expected when introducing trees in the farming landscapes in different environmental regions in Europe. For all the systems, the forestry alternatives presented the best results in terms of a decrease in soil erosion of 51% (\u00b129), a decrease of nearly all the nitrate leaching (98% \u00b1 1) and an increase in the carbon sequestration of up to 238 Mg C ha\u22121 (\u00b1140). However, these alternatives are limited in the variety of food, energy and\/or materials provided. On the other hand, from an arable or pure-pasture alternative starting point, an increase in agroforestry tree density could also be associated with a decrease in soil erosion of up to 25% (\u00b117), a decrease in nitrates leached of up to 52% (\u00b134) and an increase in the carbon sequestered of 163 Mg C ha\u22121 (\u00b1128) while at the same time ensuring the same levels of biomass growth and an increase in product diversification.<\/jats:p>","DOI":"10.3390\/su12166676","type":"journal-article","created":{"date-parts":[[2020,8,18]],"date-time":"2020-08-18T11:15:27Z","timestamp":1597749327000},"page":"6676","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":10,"title":["Quantifying Regulating Ecosystem Services with Increased Tree Densities on European Farmland"],"prefix":"10.3390","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2953-0905","authenticated-orcid":false,"given":"Josep","family":"Crous-Duran","sequence":"first","affiliation":[{"name":"Forest Research Centre, School of Agriculture, University of Lisbon, Tapada da Ajuda s\/n, 1349-017 Lisbon, Portugal"},{"name":"REVOLVE, Carrer d\u2019\u00c0laba, 100, 08018 Barcelona, Spain"}]},{"given":"Anil R.","family":"Graves","sequence":"additional","affiliation":[{"name":"School of Water, Energy and Environment, Cranfield University, Cranfield, Bedfordshire MK43 0AL, UK"}]},{"given":"Silvestre","family":"Garc\u00eda de Jal\u00f3n","sequence":"additional","affiliation":[{"name":"Basque Center for Climate Change, 48940 Leioa, Spain"}]},{"given":"Sonja","family":"Kay","sequence":"additional","affiliation":[{"name":"Agroscope, CH-8046 Zurich, Switzerland"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6242-8593","authenticated-orcid":false,"given":"Margarida","family":"Tom\u00e9","sequence":"additional","affiliation":[{"name":"Forest Research Centre, School of Agriculture, University of Lisbon, Tapada da Ajuda s\/n, 1349-017 Lisbon, Portugal"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8210-3430","authenticated-orcid":false,"given":"Paul J.","family":"Burgess","sequence":"additional","affiliation":[{"name":"School of Water, Energy and Environment, Cranfield University, Cranfield, Bedfordshire MK43 0AL, UK"}]},{"ORCID":"https:\/\/orcid.org\/0000-0001-8952-7244","authenticated-orcid":false,"given":"Michail","family":"Giannitsopoulos","sequence":"additional","affiliation":[{"name":"School of Water, Energy and Environment, Cranfield University, Cranfield, Bedfordshire MK43 0AL, UK"}]},{"given":"Jo\u00e3o H.N.","family":"Palma","sequence":"additional","affiliation":[{"name":"Forest Research Centre, School of Agriculture, University of Lisbon, Tapada da Ajuda s\/n, 1349-017 Lisbon, Portugal"},{"name":"MV Agroecology Research Centre, Moinhos de Vento, M\u00e9rtola, 7750-217 Esp\u00edrito Santo, Portugal"}]}],"member":"1968","published-online":{"date-parts":[[2020,8,18]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"434","DOI":"10.1016\/j.ecoleng.2006.09.018","article-title":"Development and application of bio-economic modelling to compare silvoarable, arable, and forestry systems in three European countries","volume":"29","author":"Graves","year":"2007","journal-title":"Ecol. Eng."},{"key":"ref_2","doi-asserted-by":"crossref","first-page":"27","DOI":"10.1007\/BF00129630","article-title":"The central agroforestry hypothesis: The trees must acquire resources that the crop would not otherwise acquire","volume":"34","author":"Cannell","year":"1996","journal-title":"Agrofor. Syst."},{"key":"ref_3","doi-asserted-by":"crossref","first-page":"1613","DOI":"10.1002\/jsfa.2897","article-title":"The coming of age of agroforestry","volume":"87","author":"Nair","year":"2007","journal-title":"J. Sci. Food Agric."},{"key":"ref_4","doi-asserted-by":"crossref","first-page":"1","DOI":"10.1007\/s10457-009-9229-7","article-title":"Agroforestry for ecosystem services and environmental benefits: An overview","volume":"76","author":"Jose","year":"2009","journal-title":"Agrofor. Syst."},{"key":"ref_5","doi-asserted-by":"crossref","first-page":"812","DOI":"10.1126\/science.1185383","article-title":"Food Security: The Challenge of Feeding 9 billion","volume":"327","author":"Godfray","year":"2012","journal-title":"Science"},{"key":"ref_6","doi-asserted-by":"crossref","first-page":"101","DOI":"10.1007\/s10457-004-1110-0","article-title":"Distribution of small mammals in an silvorable agroforestry system in Northern England","volume":"63","author":"Klaa","year":"2005","journal-title":"Agrofor. Syst."},{"key":"ref_7","doi-asserted-by":"crossref","first-page":"288","DOI":"10.1016\/j.geoderma.2015.06.015","article-title":"Impact of alley cropping agroforestry on stocks, forms and spatial distribution of soil organic carbon\u2014A case study in a Mediterranean context","volume":"259\u2013260","author":"Cardinael","year":"2015","journal-title":"Geoderma"},{"key":"ref_8","doi-asserted-by":"crossref","unstructured":"Moreno, G., Aviron, S., Berg, S., Crous-Duran, J., Franca, A., Garc\u00eda de Jal\u00f3n, S., Hartel, T., Mirck, J., Pantera, A., and Palma, J.H.N. (2017). Agroforestry systems of high nature and cultural value in Europe: Provision of commercial goods and other ecosystem services. Agrofor. Syst.","DOI":"10.1007\/s10457-017-0126-1"},{"key":"ref_9","doi-asserted-by":"crossref","first-page":"801","DOI":"10.1007\/s10457-018-0261-3","article-title":"Advances in European agroforestry: Results from the AGFORWARD project","volume":"92","author":"Burgess","year":"2018","journal-title":"Agrofor. Syst."},{"key":"ref_10","doi-asserted-by":"crossref","first-page":"419","DOI":"10.1016\/j.ecoleng.2006.09.017","article-title":"Yield-SAFE: A parameter-sparse, process-based dynamic model for predicting resource capture, growth, and production in agroforestry systems","volume":"29","author":"Keesman","year":"2007","journal-title":"Ecol. Eng."},{"key":"ref_11","doi-asserted-by":"crossref","first-page":"1985","DOI":"10.1007\/s10457-018-0297-4","article-title":"Modelling tree density effects on provisioning ecosystem services in Europe","volume":"93","author":"Graves","year":"2019","journal-title":"Agrofor. Syst."},{"key":"ref_12","doi-asserted-by":"crossref","first-page":"24","DOI":"10.1016\/j.ecolmodel.2018.01.017","article-title":"Forage-SAFE: A model for assessing the impact of tree cover on wood pasture profitability","volume":"372","author":"Graves","year":"2018","journal-title":"Ecol. Model."},{"key":"ref_13","doi-asserted-by":"crossref","first-page":"43","DOI":"10.1016\/0169-2046(93)90081-N","article-title":"Threatened landscape in Alentejo, Portugal: The \u201cmontado\u201d and other \u201cagro-silvo-pastoral\u201d systems","volume":"24","year":"1993","journal-title":"Landsc. Urban Plan."},{"key":"ref_14","doi-asserted-by":"crossref","first-page":"99","DOI":"10.1007\/s10457-011-9388-1","article-title":"Introducing the montado, the cork and holm oak agroforestry system of Southern Portugal","volume":"82","author":"Ribeiro","year":"2011","journal-title":"Agrofor. Syst."},{"key":"ref_15","unstructured":"Olea, L., and San Miguel-Ayanz, A. (2006). The Spanish dehesa. A traditional Mediterranean silvopastoral system linking production and nature conservation. Sustainable Grassland Productivity, Proceedings of the 21st General Meeting of the European Grassland Federation, Badajoz, Spain, 3\u20136 April 2006, Organizing Committee of the 21st General Meeting of the European Grassland Federation."},{"key":"ref_16","doi-asserted-by":"crossref","first-page":"759","DOI":"10.1007\/s13593-014-0261-2","article-title":"Innovative agroecosystem goods and services: Key profitability drivers in Swiss agroforestry","volume":"35","author":"Sereke","year":"2015","journal-title":"Agron. Sustain. Dev."},{"key":"ref_17","doi-asserted-by":"crossref","first-page":"29","DOI":"10.1007\/s10457-005-1111-7","article-title":"Silvoarable systems in Europe\u2014Past, present and future prospects","volume":"67","author":"Eichhorn","year":"2006","journal-title":"Agrofor. Syst."},{"key":"ref_18","doi-asserted-by":"crossref","first-page":"61","DOI":"10.1023\/A:1006152127824","article-title":"Streuobst: A traditional agroforestry system as a model for agroforestry development in temperate Europe","volume":"42","author":"Herzog","year":"1998","journal-title":"Agrofor. Syst."},{"key":"ref_19","doi-asserted-by":"crossref","first-page":"157","DOI":"10.1007\/s10457-004-7169-9","article-title":"Poplar (Populus spp) growth and crop yields in a silvoarable experiment at three lowland sites in England","volume":"63","author":"Burgess","year":"2005","journal-title":"Agrofor. Syst."},{"key":"ref_20","unstructured":"Becker, A., Kemnitz, D., and Peters, D. (2019). Erhebung, Aufbereitung und Analyse Statistischer Daten zum Anbau und zur Verarbeitung Nachwachsender Rohstoffe und Energiepflanzen in Deutschland sowie Weiterentwicklung von Methoden Hierzu, Fachagentur Nachwachsende Rohstoffe."},{"key":"ref_21","doi-asserted-by":"crossref","unstructured":"Butler Manning, D., Bemmann, A., Bredemeier, M., Lamersdorf, N., and Ammer, C. (2015). Bioenergy from Dendromass for the Sustainable Development of Rural Areas, Wiley-VCH.","DOI":"10.1002\/9783527682973"},{"key":"ref_22","doi-asserted-by":"crossref","first-page":"438","DOI":"10.1016\/j.envsci.2015.08.012","article-title":"The new assessment of soil loss by water erosion in Europe","volume":"54","author":"Panagos","year":"2015","journal-title":"Environ. Sci. Policy"},{"key":"ref_23","doi-asserted-by":"crossref","first-page":"450","DOI":"10.1016\/j.ecoleng.2006.09.016","article-title":"Methodological approach for the assessment of environmental effects of agroforestry at the landscape scale","volume":"29","author":"Palma","year":"2007","journal-title":"Ecol. Eng."},{"key":"ref_24","doi-asserted-by":"crossref","first-page":"1047","DOI":"10.1007\/s10457-017-0123-4","article-title":"Integrating belowground carbon dynamics into Yield-SAFE, a parameter sparse agroforestry model","volume":"92","author":"Palma","year":"2017","journal-title":"Agrofor. Syst."},{"key":"ref_25","doi-asserted-by":"crossref","first-page":"1059","DOI":"10.1007\/s10457-017-0128-z","article-title":"Modelling and valuing the environmental impacts of arable, forestry and agroforestry systems: A case study","volume":"92","author":"Graves","year":"2018","journal-title":"Agrofor. Syst."},{"key":"ref_26","doi-asserted-by":"crossref","first-page":"1298","DOI":"10.1016\/j.scitotenv.2016.11.123","article-title":"Mapping monthly rainfall erosivity in Europe","volume":"579","author":"Ballabio","year":"2017","journal-title":"Sci. Total Environ."},{"key":"ref_27","doi-asserted-by":"crossref","first-page":"189","DOI":"10.1016\/j.scitotenv.2014.02.010","article-title":"Soil erodibility in Europe: A high-resolution dataset based on LUCAS","volume":"479\u2013480","author":"Panagos","year":"2014","journal-title":"Sci. Total Environ."},{"key":"ref_28","doi-asserted-by":"crossref","first-page":"117","DOI":"10.3390\/geosciences5020117","article-title":"A New European Slope Length and Steepness Factor (LS-Factor) for Modeling Soil Erosion by Water","volume":"5","author":"Panagos","year":"2015","journal-title":"Geosciences"},{"key":"ref_29","doi-asserted-by":"crossref","first-page":"1075","DOI":"10.1007\/s10457-017-0132-3","article-title":"Spatial similarities between European agroforestry systems and ecosystem services at the landscape scale","volume":"92","author":"Kay","year":"2018","journal-title":"Agrofor. Syst."},{"key":"ref_30","doi-asserted-by":"crossref","first-page":"38","DOI":"10.1016\/j.landusepol.2015.05.021","article-title":"Estimating the soil erosion cover-management factor at the European scale","volume":"48","author":"Panagos","year":"2015","journal-title":"Land Use Policy"},{"key":"ref_31","doi-asserted-by":"crossref","first-page":"23","DOI":"10.1016\/j.envsci.2015.03.012","article-title":"Modelling the effect of support practices (P-factor) on the reduction of soil erosion by water at European scale","volume":"51","author":"Panagos","year":"2015","journal-title":"Environ. Sci. Policy"},{"key":"ref_32","unstructured":"Harper, J., and Gruys, P. (1977). Agro-ecosystems in Israel. Agro-Ecosystems, Elsevier Scientific Publishing."},{"key":"ref_33","doi-asserted-by":"crossref","first-page":"133","DOI":"10.1007\/BF02180052","article-title":"Accesion, transformation, and loss of nitrogen in soils of the arid region","volume":"58","author":"Vlek","year":"1981","journal-title":"Plant Soil"},{"key":"ref_34","unstructured":"(2019, April 07). EMEP Cooperative Programme for Monitoring and Evaluation of the Long-Range Transmission of Air Pollutants in Europe. Available online: www.emep.int."},{"key":"ref_35","doi-asserted-by":"crossref","first-page":"245","DOI":"10.1016\/S1161-0301(00)00077-0","article-title":"Soil-plant-animal relations in nutrient cycling: The case of dairy farming system \u201cDe Marke\u201d","volume":"13","author":"Aarts","year":"2000","journal-title":"Eur. J. Agron."},{"key":"ref_36","doi-asserted-by":"crossref","first-page":"231","DOI":"10.1016\/j.jaridenv.2010.10.011","article-title":"Herbaceous layer development during spring does not deplete soil nitrogen in the Portuguese montado","volume":"75","author":"Otieno","year":"2011","journal-title":"J. Arid Environ."},{"key":"ref_37","doi-asserted-by":"crossref","first-page":"163","DOI":"10.1007\/s11104-015-2476-7","article-title":"Accumulation of biologically fixed nitrogen by legumes cultivated as cover crops in Switzerland","volume":"393","author":"Gebhard","year":"2015","journal-title":"Plant Soil"},{"key":"ref_38","doi-asserted-by":"crossref","unstructured":"Draycott, A.P. (2006). Sugar Beet, Blackwell Publishing.","DOI":"10.1002\/9780470751114"},{"key":"ref_39","doi-asserted-by":"crossref","first-page":"1023","DOI":"10.1007\/s00468-013-0853-5","article-title":"Distribution of non-structural nitrogen and carbohydrate compounds in mature oak trees in a temperate forest at four key phenological stages","volume":"27","author":"Bazot","year":"2013","journal-title":"Trees Struct. Funct."},{"key":"ref_40","doi-asserted-by":"crossref","first-page":"4","DOI":"10.1186\/s40663-016-0063-x","article-title":"Above-ground woody biomass allocation and within tree carbon and nutrient distribution of wild cherry (Prunus avium L.)\u2014A case study","volume":"3","author":"Morhart","year":"2016","journal-title":"For. Ecosyst."},{"key":"ref_41","doi-asserted-by":"crossref","first-page":"847","DOI":"10.3832\/ifor2016-009","article-title":"Growth performance and nitrogen use efficiency of two Populus hybrid clones (P. nigra \u00d7 P. maximowiczii and P. trichocarpa \u00d7 P. maximowiczii) in relation to soil depth in a young plantation","volume":"9","author":"Euring","year":"2016","journal-title":"IForest"},{"key":"ref_42","unstructured":"Coleman, K., and Jenkinson, D.S. (2014). RothC\u2014A model for the turnover of carbon in soil. Eval. Soil Org. Matter Model., 1\u201344."},{"key":"ref_43","unstructured":"Steven, A., Duethman, D., Gooday, R., Harris, D., Newell-Price, P., Chadwick, D., and Misselbrook, T. (2009). Quantitative Assessment of Scenarios for Managing Trade-Off Between Economics, Environment and Media, DEFRA. Project WQ0106."},{"key":"ref_44","first-page":"6","article-title":"A modified air pycnometer for compost air volume and density determination","volume":"45","author":"Agnew","year":"2003","journal-title":"Can. Biosyst. Eng."},{"key":"ref_45","doi-asserted-by":"crossref","first-page":"2008","DOI":"10.3168\/jds.S0022-0302(94)77147-2","article-title":"Components of Dairy Manure Management Systems","volume":"77","author":"Wilkie","year":"1994","journal-title":"J. Dairy Sci."},{"key":"ref_46","doi-asserted-by":"crossref","first-page":"14","DOI":"10.5424\/fs\/2017261-10251","article-title":"Clipick\u2014Climate change web picker. A tool bridging daily climate needs in process based modelling in forestry and agriculture","volume":"26","author":"Palma","year":"2017","journal-title":"For. Syst."},{"key":"ref_47","doi-asserted-by":"crossref","first-page":"320","DOI":"10.1016\/j.agee.2006.07.021","article-title":"Modeling environmental benefits of silvoarable agroforestry in Europe","volume":"119","author":"Palma","year":"2007","journal-title":"Agric. Ecosyst. Environ."},{"key":"ref_48","doi-asserted-by":"crossref","first-page":"160","DOI":"10.1016\/j.geomorph.2015.03.008","article-title":"A meta-analysis of soil erosion rates across the world","volume":"239","year":"2015","journal-title":"Geomorphology"},{"key":"ref_49","doi-asserted-by":"crossref","first-page":"878","DOI":"10.1007\/s10021-014-9766-4","article-title":"Mapping Soil Erosion Prevention Using an Ecosystem Service Modeling Framework for Integrated Land Management and Policy","volume":"17","author":"Guerra","year":"2014","journal-title":"Ecosystems"},{"key":"ref_50","doi-asserted-by":"crossref","first-page":"15","DOI":"10.1016\/0144-4565(87)90020-5","article-title":"Biomass energy and soil erosion: Assessment of resource costs","volume":"14","author":"Pimentel","year":"1987","journal-title":"Biomass"},{"key":"ref_51","doi-asserted-by":"crossref","first-page":"492","DOI":"10.1579\/0044-7447-29.8.492","article-title":"Soil Sustainability in Renewable Biomass Plantings","volume":"29","author":"Tolbert","year":"2000","journal-title":"AMBIO J. Hum. Environ."},{"key":"ref_52","doi-asserted-by":"crossref","first-page":"351","DOI":"10.1016\/S0961-9534(97)10071-X","article-title":"A review of soil erosion associated to biomass crops","volume":"14","author":"Kort","year":"1998","journal-title":"Biomass Bioenergy"},{"key":"ref_53","doi-asserted-by":"crossref","first-page":"323","DOI":"10.1002\/(SICI)1097-0010(199707)74:3<323::AID-JSFA805>3.0.CO;2-G","article-title":"Effects of interposing sugar beet on the nitrogen response of the following wheat crop","volume":"74","author":"Shepherd","year":"1997","journal-title":"J. Sci. Food Agric."},{"key":"ref_54","doi-asserted-by":"crossref","first-page":"192","DOI":"10.1016\/j.ecoleng.2006.07.003","article-title":"Reducing nutrient loss from farms through silvopastoral practices in coarse-textured soils of Florida, USA","volume":"29","author":"Nair","year":"2007","journal-title":"Ecol. Eng."},{"key":"ref_55","doi-asserted-by":"crossref","unstructured":"Butler Manning, D., Bemmann, A., Bredemeier, M., Lamersdorf, N., and Ammer, C. (2015). Site Conditions, Initial Growth and Nutrient and Litter Cycling of Newly Installed Short Rotation Coppice and Agroforestry Systems. Bioenergy from Dendromass for the Sustainable Development of Rural Areas, Wiley-VCH.","DOI":"10.1002\/9783527682973"},{"key":"ref_56","doi-asserted-by":"crossref","first-page":"791","DOI":"10.1007\/s10457-014-9725-2","article-title":"Carbon sequestration of modern Quercus suber L. silvoarable agroforestry systems in Portugal: A YieldSAFE-based estimation","volume":"88","author":"Palma","year":"2014","journal-title":"Agrofor. Syst."},{"key":"ref_57","unstructured":"Mathews, G. (1993). The Carbon Content of Trees, Forestry Commission of the United Kingdom. Forestry Commission Technical Paper 4."},{"key":"ref_58","unstructured":"Mirck, J., Kanzler, M., and Quinkenstein, A. (2016). Agforward Project System Report: Alley Cropping in Germany. Agforward Project, BTU Cottbus-Senftenberg. Available online: https:\/\/www.agforward.eu\/index.php\/pt\/integracao-de-arvores-e-culturas-arvenses-alemanha-862.html?file=files\/agforward\/documents\/WP4%20Initial%20Stakeholder%20report%20BTU%20Arable%20final.pdf."},{"key":"ref_59","unstructured":"Kanzler, M., and Mirck, J. (2017). Lessons Learnt\u2014Alley Cropping in Germany, European Comission. Leaflet of the FP7 AGFORWARD Project."},{"key":"ref_60","doi-asserted-by":"crossref","first-page":"505","DOI":"10.1007\/s10457-014-9709-2","article-title":"Soil carbon fractions in short rotation poplar and black locust coppices, Germany","volume":"88","author":"Medinski","year":"2014","journal-title":"Agrofor. Syst."},{"key":"ref_61","doi-asserted-by":"crossref","first-page":"853","DOI":"10.2134\/jeq2010.0165","article-title":"Trees\u2019 role in nitrogen leaching after organic, mineral fertilization: A greenhouse experiment","volume":"40","author":"Rolo","year":"2011","journal-title":"J. Environ. Qual."},{"key":"ref_62","doi-asserted-by":"crossref","first-page":"1744","DOI":"10.1016\/j.ecolmodel.2010.03.008","article-title":"Implementation and calibration of the parameter-sparse Yield-SAFE model to predict production and land equivalent ratio in mixed tree and crop systems under two contrasting production situations in Europe","volume":"221","author":"Graves","year":"2010","journal-title":"Ecol. Model."},{"key":"ref_63","unstructured":"Balandier, P., De Montard, F.X., and Curt, T. (2003). Root competition for water between trees and grass in a silvopastoral plot of ten-year-old Prunus avium. Ecological Basis of Agroforestry, CRC Press Taylor & Francis Group."},{"key":"ref_64","doi-asserted-by":"crossref","first-page":"243","DOI":"10.1016\/j.agee.2016.12.011","article-title":"Increased soil organic carbon stocks under agroforestry: A survey of six different sites in France","volume":"236","author":"Cardinael","year":"2017","journal-title":"Agric. Ecosyst. Environ."},{"key":"ref_65","doi-asserted-by":"crossref","first-page":"90","DOI":"10.1038\/nature12914","article-title":"Rate of tree carbon accumulation increases continuously with tree size","volume":"507","author":"Stephenson","year":"2014","journal-title":"Nature"},{"key":"ref_66","doi-asserted-by":"crossref","first-page":"565","DOI":"10.1002\/jpln.200800191","article-title":"Influence of Quercus ilex trees on herbaceous production and nutrient concentrations in southern Portugal","volume":"172","author":"Cubera","year":"2009","journal-title":"J. Plant Nutr. Soil Sci."},{"key":"ref_67","doi-asserted-by":"crossref","first-page":"447","DOI":"10.1016\/j.agee.2011.04.018","article-title":"Shrub encroachment in Mediterranean silvopastoral systems: Retama sphaerocarpa and Cistus ladanifer induce contrasting effects on pasture and Quercus ilex production","volume":"141","author":"Rivest","year":"2011","journal-title":"Agric. Ecosyst. Environ."},{"key":"ref_68","doi-asserted-by":"crossref","first-page":"587","DOI":"10.1007\/s10457-015-9793-y","article-title":"Shrub encroachment of Iberian dehesas: Implications on total forage productivity","volume":"89","author":"Rolo","year":"2015","journal-title":"Agrofor. Syst."},{"key":"ref_69","unstructured":"Palma, J.H.N., Graves, A.R., Crous-Duran, J., Upson, M., Paulo, J.A., Oliveira, T., Garc\u00eda de Jal\u00f3n, S., and Burgess, P.J. (2016). Yield-SAFE Model Improvements. Report for Milestone 29 (6.4) of the AGFORWARD Project, European Comission. FP7 AGFORWARD Project."},{"key":"ref_70","unstructured":"Van Keulen, H. (1977). Nitrogen Requirements of Rice with Special Reference to Java, Central Research Institute for Agriculture. No. 30."},{"key":"ref_71","doi-asserted-by":"crossref","first-page":"113","DOI":"10.1016\/0308-521X(82)90026-9","article-title":"Graphical Analysis of Annual Crop Response","volume":"9","year":"1982","journal-title":"Agric. Syst."},{"key":"ref_72","unstructured":"Van Keulen, H., and Wolf, J. (1986). Crop. Production as Determined by Nutrient Availability. Modelling of Agricultural Production: Weather, Soils and Crops, Simulation Monographs."}],"container-title":["Sustainability"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.mdpi.com\/2071-1050\/12\/16\/6676\/pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2025,10,11]],"date-time":"2025-10-11T10:02:34Z","timestamp":1760176954000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.mdpi.com\/2071-1050\/12\/16\/6676"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2020,8,18]]},"references-count":72,"journal-issue":{"issue":"16","published-online":{"date-parts":[[2020,8]]}},"alternative-id":["su12166676"],"URL":"https:\/\/doi.org\/10.3390\/su12166676","relation":{},"ISSN":["2071-1050"],"issn-type":[{"type":"electronic","value":"2071-1050"}],"subject":[],"published":{"date-parts":[[2020,8,18]]}}}