Towards the sustainable intensification of agriculture—a systems approach to policy formulation

Leslie G. FIRBANK

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Front. Agr. Sci. Eng. ›› 2020, Vol. 7 ›› Issue (1) : 81-89. DOI: 10.15302/J-FASE-2019291
RESEARCH ARTICLE
RESEARCH ARTICLE

Towards the sustainable intensification of agriculture—a systems approach to policy formulation

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Abstract

The sustainable intensification of agriculture involves providing sufficient food and other ecosystem services without going beyond the limits of the earth’s system. Here a project management approach is suggested to help guide agricultural policy to deliver these objectives. The first step is to agree measurable outcomes, integrating formal policy goals with the often much less formal and much more diverse goals of individual farmers. The second step is to assess current performance. Ideally, this will involve the use of farm-scale metrics that can feed into process models that address social and environmental domains as well as production issues that can be benchmarked and upscaled to landscape and country. Some policy goals can be delivered by supporting ad hoc interventions, while others require the redesign of the farming system. A pipeline of research, knowledge and capacity building is needed to ensure the continuous increase in farm performance. System models can help prioritise policy interventions. Formal optimization of land use is only appropriate if the policy goals are clear, and the constraints understood. In practice, the best approach may depend on the scale of action that is required, and on the amount of resource and infrastructure available to generate, implement and manage policy.

Keywords

agricultural policy / ecosystem services / indicators of sustainable intensification / knowledge exchange / land use optimization

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Leslie G. FIRBANK. Towards the sustainable intensification of agriculture—a systems approach to policy formulation. Front. Agr. Sci. Eng., 2020, 7(1): 81‒89 https://doi.org/10.15302/J-FASE-2019291

References

[1]
Royal Society. Reaping the benefits: science and the sustainable intensification of global agriculture. London: Royal Society, 2009
[2]
Chou J M, Dong W J, Wang S Y, Fu Y Q. Quantitative analysis of agricultural land use change in China. Physics and Chemistry of the Earth, 2015, 87–88: 3–9
CrossRef Google scholar
[3]
Cui Z, Zhang H, Chen X, Zhang C, Ma W, Huang C, Zhang W, Mi G, Miao Y, Li X, Gao Q, Yang J, Wang Z, Ye Y, Guo S, Lu J, Huang J, Lv S, Sun Y, Liu Y, Peng X, Ren J, Li S, Deng X, Shi X, Zhang Q, Yang Z, Tang L, Wei C, Jia L, Zhang J, He M, Tong Y, Tang Q, Zhong X, Liu Z, Cao N, Kou C, Ying H, Yin Y, Jiao X, Zhang Q, Fan M, Jiang R, Zhang F, Dou Z. Pursuing sustainable productivity with millions of smallholder farmers. Nature, 2018, 555(7696): 363–366
CrossRef Pubmed Google scholar
[4]
Zhang W, Cao G, Li X, Zhang H, Wang C, Liu Q, Chen X, Cui Z, Shen J, Jiang R, Mi G, Miao Y, Zhang F, Dou Z. Closing yield gaps in China by empowering smallholder farmers. Nature, 2016, 537(7622): 671–674
CrossRef Pubmed Google scholar
[5]
Raworth K. Policy paper: a safe and just operating space for humanity. Nairobi, Kenya: Oxfam International, 2012
[6]
Rockström J, Steffen W, Noone K, Persson A, Chapin F S 3rd, Lambin E F, Lenton T M, Scheffer M, Folke C, Schellnhuber H J, Nykvist B, de Wit C A, Hughes T, van der Leeuw S, Rodhe H, Sörlin S, Snyder P K, Costanza R, Svedin U, Falkenmark M, Karlberg L, Corell R W, Fabry V J, Hansen J, Walker B, Liverman D, Richardson K, Crutzen P, Foley J A. A safe operating space for humanity. Nature, 2009, 461(7263): 472–475
CrossRef Pubmed Google scholar
[7]
Willett W, Rockström J, Loken B, Springmann M, Lang T, Vermeulen S, Garnett T, Tilman D, DeClerck F, Wood A, Jonell M, Clark M, Gordon L J, Fanzo J, Hawkes C, Zurayk R, Rivera J A, de Vries W, Majele Sibanda L, Afshin A, Chaudhary A, Herrero M, Agustina R, Branca F, Lartey A, Fan S, Crona B, Fox E, Bignet V, Troell M, Lindahl T, Singh S, Cornell S E, Srinath Reddy K, Narain S, Nishtar S, Murray C J L. Food in the Anthropocene: the EAT-Lancet Commission on healthy diets from sustainable food systems. Lancet, 2019, 393(10170): 447–492
CrossRef Pubmed Google scholar
[8]
Loos J, Abson D J, Chappell M J, Hanspach J, Mikulcak F, Tichit M, Fischer J. Putting meaning back into “sustainable intensification”. Frontiers in Ecology and the Environment, 2014, 12(6): 356–361
CrossRef Google scholar
[9]
Firbank L G, Attwood S, Eory V, Gadanakis Y, Lynch J M, Sonnino R, Takahashi T. Grand challenges in sustainable intensification and ecosystem services. Frontiers in Sustainable Food Systems, 2018, 2(7). doi: 10.3389/sufs.2018.00007
[10]
Musumba M, Grabowski P, Palm C, Snapp S. Guide for the sustainable intensification assessment framework. Manhattan, USA: Kansas State University, 2017
[11]
Firbank L G, Elliott J, Field R H, Lynch J M, Peach W J, Ramsden S, Turner C. Assessing the performance of commercial farms in England and Wales: lessons for supporting the sustainable intensification of agriculture. Food and Energy Security, 2018, 7(4): e00150
CrossRef Google scholar
[12]
Ditzler L, Komarek A M, Chiang T W, Alvarez S, Chatterjee S A, Timler C, Raneri J E, Carmona N E, Kennedy G, Groot J C J. A model to examine farm household trade-offs and synergies with an application to smallholders in Vietnam. Agricultural Systems, 2019, 173: 49–63
CrossRef Google scholar
[13]
Pretty J. Agricultural sustainability: concepts, principles and evidence. Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences, 2008, 363(1491): 447–465
CrossRef Pubmed Google scholar
[14]
Bünemann E K, Bongiorno G, Bai Z G, Creamer R E, de Deyn G, de Goede R, Fleskens L, Geissen V, Kuyper T W, Mader P, Pulleman M, Sukkel W, van Groenigen J W, Brussaard L. Soil quality—a critical review. Soil Biology & Biochemistry, 2018, 120: 105–125
CrossRef Google scholar
[15]
Chaudhary A, Gustafson D, Mathys A. Multi-indicator sustainability assessment of global food systems. Nature Communications, 2018, 9(1): 848
CrossRef Pubmed Google scholar
[16]
Dale V H, Kline K L, Kaffka S R, Langeveld J W A. A landscape perspective on sustainability of agricultural systems. Landscape Ecology, 2013, 28(6): 1111–1123
CrossRef Google scholar
[17]
Milder J C, Hart A K, Dobie P, Minai J, Zaleski C. Integrated landscape initiatives for African agriculture, development, and conservation: a region-wide assessment. World Development, 2014, 54: 68–80
CrossRef Google scholar
[18]
Mdee A, Wostry A, Coulson A, Maro J. A pathway to inclusive sustainable intensification in agriculture? Assessing evidence on the application of agroecology in Tanzania. Agroecology and Sustainable Food Systems, 2019, 43(2): 201–227
CrossRef Google scholar
[19]
Fischer J, Lindenmayer D B. Landscape modification and habitat fragmentation: a synthesis. Global Ecology and Biogeography, 2007, 16(3): 265–280
CrossRef Google scholar
[20]
Tscharntke T, Tylianakis J M, Rand T A, Didham R K, Fahrig L, Batáry P, Bengtsson J, Clough Y, Crist T O, Dormann C F, Ewers R M, Fründ J, Holt R D, Holzschuh A, Klein A M, Kleijn D, Kremen C, Landis D A, Laurance W, Lindenmayer D, Scherber C, Sodhi N, Steffan-Dewenter I, Thies C, van der Putten W H, Westphal C. Landscape moderation of biodiversity patterns and processes—eight hypotheses. Biological Reviews of the Cambridge Philosophical Society, 2012, 87(3): 661–685
CrossRef Pubmed Google scholar
[21]
Phalan B, Balmford A, Green R E, Scharlemann J P W. Minimising the harm to biodiversity of producing more food globally. Food Policy, 2011, 36: S62–S71
CrossRef Google scholar
[22]
Wu X, Liu S, Zhao S, Hou X, Xu J, Dong S, Liu G. Quantification and driving force analysis of ecosystem services supply, demand and balance in China. Science of the Total Environment, 2019, 652: 1375–1386
CrossRef Pubmed Google scholar
[23]
Chen Y, Yu Z, Li X, Li P. How agricultural multiple ecosystem services respond to socioeconomic factors in Mengyin County, China. Science of the Total Environment, 2018, 630: 1003–1015
CrossRef Pubmed Google scholar
[24]
Frei B, Renard D, Mitchell M G E, Seufert V, Chaplin-Kramer R, Rhemtulla J M, Bennett E M. Bright spots in agricultural landscapes: identifying areas exceeding expectations for multifunctionality and biodiversity. Journal of Applied Ecology, 2018, 55(6): 2731–2743
CrossRef Google scholar
[25]
Burkhard B, Kroll F, Nedkov S, Muller F. Mapping ecosystem service supply, demand and budgets. Ecological Indicators, 2012, 21: 17–29
CrossRef Google scholar
[26]
Wang J, Zhou W, Pickett S T A, Yu W, Li W. A multiscale analysis of urbanization effects on ecosystem services supply in an urban megaregion. Science of the Total Environment, 2019, 662: 824–833
CrossRef Pubmed Google scholar
[27]
Fridman D, Kissinger M. An integrated biophysical and ecosystem approach as a base for ecosystem services analysis across regions. Ecosystem Services, 2018, 31: 242–254
CrossRef Google scholar
[28]
Chaudhary A, Kastner T. Land use biodiversity impacts embodied in international food trade. Global Environmental Change, 2016, 38: 195–204
CrossRef Google scholar
[29]
Kayatz B, Baroni G, Hillier J, Lüdtke S, Heathcote R, Malin D, van Tonder C, Kuster B, Freese D, Hüttl R, Wattenbach M. Cool Farm Tool Water: a global on-line tool to assess water use in crop production. Journal of Cleaner Production, 2019, 207: 1163–1179
CrossRef Pubmed Google scholar
[30]
Hallström E, Carlsson-Kanyama A, Borjesson P. Environmental impact of dietary change: a systematic review. Journal of Cleaner Production, 2015, 91: 1–11
CrossRef Google scholar
[31]
Deng J, Sun P, Zhao F, Han X, Yang G, Feng Y. Analysis of the ecological conservation behavior of farmers in payment for ecosystem service programs in eco-environmentally fragile areas using social psychology models. Science of the Total Environment, 2016, 550: 382–390
CrossRef Pubmed Google scholar
[32]
Firbank L, Elliott J, Drake B, Cao Y, Gooday R. Evidence of sustainable intensification among British farms. Agriculture, Ecosystems & Environment, 2013, 173: 58–65
CrossRef Google scholar
[33]
Chen Q, Zhang X S, Zhang H Y, Christie P, Li X L, Horlacher D, Liebig H P. Evaluation of current fertilizer practice and soil fertility in vegetable production in the Beijing region. Nutrient Cycling in Agroecosystems, 2004, 69(1): 51–58
CrossRef Google scholar
[34]
Hoover J D, Leisz S J, Laituri M E. Comparing and combining landsat satellite imagery and participatory data to assess land-use and land-cover changes in a coastal village in Papua New Guinea. Human Ecology, 2017, 45(2): 251–264
CrossRef Google scholar
[35]
Westbury D B, Park J R, Mauchline A L, Crane R T, Mortimer S R. Assessing the environmental performance of English arable and livestock holdings using data from the Farm Accountancy Data Network (FADN). Journal of Environmental Management, 2011, 92(3): 902–909
CrossRef Pubmed Google scholar
[36]
Carey P D, Short C, Morris C, Hunt J, Priscott A, Davis M, Finch C, Curry N, Little W, Winter M, Parkin A, Firbank L G. The multi-disciplinary evaluation of a national agri-environment scheme. Journal of Environmental Management, 2003, 69(1): 71–91
CrossRef Pubmed Google scholar
[37]
Gooday R D, Anthony S G, Chadwick D R, Newell-Price P, Harris D, Duethmann D, Fish R, Collins A L, Winter M. Modelling the cost-effectiveness of mitigation methods for multiple pollutants at farm scale. Science of the Total Environment, 2014, 468–469: 1198–1209
CrossRef Pubmed Google scholar
[38]
Hillier J, Walter C, Malin D, Garcia-Suarez T, Mila-i-Canals L, Smith P. A farm-focused calculator for emissions from crop and livestock production. Environmental Modelling & Software, 2011, 26(9): 1070–1078
CrossRef Google scholar
[39]
Zhao Z, Bai Y P, Wang G F, Chen J C, Yu J L, Liu W. Land eco-efficiency for new-type urbanization in the Beijing-Tianjin-Hebei Region. Technological Forecasting and Social Change, 2018, 137: 19–26
CrossRef Google scholar
[40]
Areal F J, Jones P J, Mortimer S R, Wilson P. Measuring sustainable intensification: combining composite indicators and efficiency analysis to account for positive externalities in cereal production. Land Use Policy, 2018, 75: 314–326
CrossRef Google scholar
[41]
Jiang M K, Bullock J M, Hooftman D A P. Mapping ecosystem service and biodiversity changes over 70 years in a rural English county. Journal of Applied Ecology, 2013, 50(4): 841–850
CrossRef Google scholar
[42]
Li G, Fang C, Wang S. Exploring spatiotemporal changes in ecosystem-service values and hotspots in China. Science of the Total Environment, 2016, 545–546: 609–620
CrossRef Pubmed Google scholar
[43]
Lynch J, Skirvin D, Wilson P, Ramsden S. Integrating the economic and environmental performance of agricultural systems: a demonstration using Farm Business Survey data and Farmscoper. Science of the Total Environment, 2018, 628–629: 938–946
CrossRef Pubmed Google scholar
[44]
Drummond C J. Landscape management—central to the whole farm policy, in integrated crop protection: towards sustainability?McKinlay R G, Atkinson D, Editors. Farnham, UK: British Crop Production Council (BCPC), 1995, 275–284
[45]
Shoshany M, Goldshleger N, Chudnovsky A. Monitoring of agricultural soil degradation by remote-sensing methods: a review. International Journal of Remote Sensing, 2013, 34(17): 6152–6181
CrossRef Google scholar
[46]
Ojha T, Misra S, Raghuwanshi N S. Wireless sensor networks for agriculture: the state-of-the-art in practice and future challenges. Computers and Electronics in Agriculture, 2015, 118: 66–84
CrossRef Google scholar
[47]
Armstrong McKay D, Dearing J A, Dyke J, Poppy G M, Firbank L. To what extent has sustainable intensification in England been achieved? Science of the Total Environment, 2019, 648: 1560–1569
CrossRef Pubmed Google scholar
[48]
Firbank L G, Bradbury R B, McCracken D I, Stoate C. Delivering multiple ecosystem services from enclosed farmland in the UK. Agriculture, Ecosystems & Environment, 2013, 166: 65–75
CrossRef Google scholar
[49]
Buckley C, Wall D P, Moran B, Murphy P N C. Developing the EU Farm Accountancy Data Network to derive indicators around the sustainable use of nitrogen and phosphorus at farm level. Nutrient Cycling in Agroecosystems, 2015, 102(3): 319–333
CrossRef Google scholar
[50]
van Ittersum M K, Cassman K G, Grassini P, Wolf J, Tittonell P, Hochman Z. Yield gap analysis with local to global relevance—a review. Field Crops Research, 2013, 143: 4–17
CrossRef Google scholar
[51]
Stuart A M, Pame A R P, Silva J V, Dikitanan R C, Rutsaert P, Malabayabas A J B, Lampayan R M, Radanielson A M, Singleton G R. Yield gaps in rice-based farming systems: insights from local studies and prospects for future analysis. Field Crops Research, 2016, 194: 43–56
CrossRef Google scholar
[52]
Cui Z, Zhang H, Chen X, Zhang C, Ma W, Huang C, Zhang W, Mi G, Miao Y, Li X, Gao Q, Yang J, Wang Z, Ye Y, Guo S, Lu J, Huang J, Lv S, Sun Y, Liu Y, Peng X, Ren J, Li S, Deng X, Shi X, Zhang Q, Yang Z, Tang L, Wei C, Jia L, Zhang J, He M, Tong Y, Tang Q, Zhong X, Liu Z, Cao N, Kou C, Ying H, Yin Y, Jiao X, Zhang Q, Fan M, Jiang R, Zhang F, Dou Z. Pursuing sustainable productivity with millions of smallholder farmers. Nature, 2018, 555(7696): 363–366
CrossRef Pubmed Google scholar
[53]
Morris J, Beedell J, Hess T M. Mobilising flood risk management services from rural land: principles and practice. Journal of Flood Risk Management, 2016, 9(1): 50–68
CrossRef Google scholar
[54]
Pretty J, Benton T G, Bharucha Z P, Dicks L V, Flora C B, Godfray H C J, Goulson D, Hartley S, Lampkin N, Morris C, Pierzynski G, Prasad P V V, Reganold J, Rockstrom J, Smith P, Thorne P, Wratten S. Global assessment of agricultural system redesign for sustainable intensification. Nature Sustainability, 2018, 1(8): 441–446
CrossRef Google scholar
[55]
McCracken M E, Woodcock B A, Lobley M, Pywell R F, Saratsi E, Swetnam R D, Mortimer S R, Harris S J, Winter M, Hinsley S, Bullock J M. Social and ecological drivers of success in agri-environment schemes: the roles of farmers and environmental context. Journal of Applied Ecology, 2015, 52(3): 696–705
CrossRef Google scholar
[56]
Baumgart-Getz A, Prokopy L S, Floress K. Why farmers adopt best management practice in the United States: a meta-analysis of the adoption literature. Journal of Environmental Management, 2012, 96(1): 17–25
CrossRef Pubmed Google scholar
[57]
Singh A, MacGowan B, O’Donnell M, Overstreet B, Ulrich-Schad J, Dunn M, Klotz H, Prokopy L. The influence of demonstration sites and field days on adoption of conservation practices. Journal of Soil and Water Conservation, 2018, 73(3): 276–283
CrossRef Google scholar
[58]
Ritter C, Jansen J, Roche S, Kelton D F, Adams C L, Orsel K, Erskine R J, Benedictus G, Lam T J G M, Barkema H W. Invited review: determinants of farmers’ adoption of management-based strategies for infectious disease prevention and control. Journal of Dairy Science, 2017, 100(5): 3329–3347
CrossRef Pubmed Google scholar
[59]
Rose D C, Sutherland W J, Parker C, Lobley M, Winter M, Morris C, Twining S, Ffoulkes C, Amano T, Dicks L V. Decision support tools for agriculture: towards effective design and delivery. Agricultural Systems, 2016, 149: 165–174
CrossRef Google scholar
[60]
Inwood S E E, Dale V H. State of apps targeting management for sustainability of agricultural landscapes. A review. Agronomy for Sustainable Development, 2019, 39(1): 15
[61]
Rose D C, Bruce T J A. Finding the right connection: what makes a successful decision support system? Food and Energy Security, 2018, 7(1): e00123
CrossRef Pubmed Google scholar
[62]
Hutchins M, Fezzi C, Bateman I, Posen P, Deflandre-Vlandas A. Cost-effective mitigation of diffuse pollution: setting criteria for river basin management at multiple locations. Environmental Management, 2009, 44(2): 256–267
CrossRef Pubmed Google scholar
[63]
Landis D A. Designing agricultural landscapes for biodiversity-based ecosystem services. Basic and Applied Ecology, 2017, 18: 1–12
CrossRef Google scholar
[64]
Prado A, Scholefield D. Use of SIMSDAIRY modelling framework system to compare the scope on the sustainability of a dairy farm of animal and plant genetic-based improvements with management-based changes. Journal of Agricultural Science, 2008, 146(2): 195–211
CrossRef Google scholar
[65]
Han Y N, Niu J Z, Xin Z B, Zhang W, Zhang T L, Wang X L, Zhang Y S. Optimization of land use pattern reduces surface runoff and sediment loss in a Hilly-Gully watershed at the Loess Plateau, China. Forest Systems, 2016, 25(1): 14
[66]
Liang J, Zhong M, Zeng G, Chen G, Hua S, Li X, Yuan Y, Wu H, Gao X. Risk management for optimal land use planning integrating ecosystem services values: a case study in Changsha, Middle China. Science of the Total Environment, 2017, 579: 1675–1682
CrossRef Pubmed Google scholar
[67]
An L. Modeling human decisions in coupled human and natural systems: review of agent-based models. Ecological Modelling, 2012, 229: 25–36
CrossRef Google scholar
[68]
Nelson E, Mendoza G, Regetz J, Polasky S, Tallis H, Cameron D R, Chan K M A, Daily G C, Goldstein J, Kareiva P M, Lonsdorf E, Naidoo R, Ricketts T H, Shaw M R. Modeling multiple ecosystem services, biodiversity conservation, commodity production, and tradeoffs at landscape scales. Frontiers in Ecology and the Environment, 2009, 7(1): 4–11
CrossRef Google scholar
[69]
van Ittersum M K, Ewert F, Heckelei T, Wery J, Alkan Olsson J, Andersen E, Bezlepkina I, Brouwer F, Donatelli M, Flichman G, Olsson L, Rizzoli A E, van der Wal T, Wien J E, Wolf J. Integrated assessment of agricultural systems—a component-based framework for the European Union (SEAMLESS). Agricultural Systems, 2008, 96(1–3): 150–165
CrossRef Google scholar
[70]
Brown I, Berry P, Everard M, Firbank L, Harrison P, Lundy L, Quine C, Rowan J, Wade R, Watts K. Identifying robust response options to manage environmental change using an Ecosystem Approach: a stress-testing case study for the UK. Environmental Science & Policy, 2015, 52: 74–88
CrossRef Google scholar
[71]
Ruckelshaus M, McKenzie E, Tallis H, Guerry A, Daily G, Kareiva P, Polasky S, Ricketts T, Bhagabati N, Wood S A, Bernhardt J. Notes from the field: lessons learned from using ecosystem service approaches to inform real-world decisions. Ecological Economics, 2015, 115: 11–21
CrossRef Google scholar
[72]
McNeely J A, Scherr S J. Ecoagriculture. Washington: Island Press, 2003, 323
[73]
Bommarco R, Kleijn D, Potts S G. Ecological intensification: harnessing ecosystem services for food security. Trends in Ecology & Evolution, 2013, 28(4): 230–238
CrossRef Pubmed Google scholar
[74]
Kanjir U, Duric N, Veljanovski T. Sentinel-2 based temporal detection of agricultural land use anomalies in support of common agricultural policy monitoring. ISPRS International Journal of Geo-Information, 2018, 7(10): 405
CrossRef Google scholar
[75]
Rockström J, Williams J, Daily G, Noble A, Matthews N, Gordon L, Wetterstrand H, DeClerck F, Shah M, Steduto P, de Fraiture C, Hatibu N, Unver O, Bird J, Sibanda L, Smith J. Sustainable intensification of agriculture for human prosperity and global sustainability. Ambio, 2017, 46(1): 4–17
CrossRef Pubmed Google scholar
[76]
Norton L R. Is it time for a socio-ecological revolution in agriculture? Agriculture, Ecosystems & Environment, 2016, 235: 13–16
CrossRef Google scholar
[77]
Garnett T, Appleby M C, Balmford A, Bateman I J, Benton T G, Bloomer P, Burlingame B, Dawkins M, Dolan L, Fraser D, Herrero M, Hoffmann I, Smith P, Thornton P K, Toulmin C, Vermeulen S J, Godfray H C J. Sustainable intensification in agriculture: premises and policies. Science, 2013, 341(6141): 33–34
CrossRef Pubmed Google scholar

Acknowledgements

This paper develops ideas presented to the International Workshop on Agriculture Green Development, in Beijing in 2018. I would like to thank the organizers and delegates at that meeting for their insight and support, and for two reviewers for their helpful comments.

Compliance with ethics guidelines

ƒLeslie G. Firbank declares that he has no conflicts of interest or financial conflicts to disclose.ƒThis article does not contain any studies with human or animal subjects performed by the author.

RIGHTS & PERMISSIONS

The Author(s) 2019. Published by Higher Education Press. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0)
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