2016-2023 - Assistant Professor, Master of Landscape Architecture Programme, Department of Architecture, College of Design and Engineering, National University of Singapore

2014-2017 - GIS Consultant, The Colorado Trust - a health equity foundation, Denver, Colorado, USA 

2013-2016 - Research Consultant, var.

2010-2015 - NSF IGERT PhD Fellow, Center for Sustainable Infrastructure Systems, Department of Health and Behavioral Sciences, University of Colorado Denver, USA

2009-2010 - Project Coordinator, Hamer Center for Community Design, H. Campbell and Eleanor R. Stuckeman School of Architecture and Landscape Architecture, The Pennsylvania State University, USA

2005-2009 - Research Assistant, Department of Landscape Architecture, The Pennsylvania State University, USA

PhD (2015) Health and Behavioral Sciences, University of Colorado Denver, USA  

BLA/MLA (2010) Landscape Architecture, The Pennsylvania State University, USA 

BA (Hons) (2000) English (writing) / Philosophy minor, West Virginia Wesleyan College, USA

Li, Wenpei, M. Chen, J.A. Diehl.  (2024).  The Combined effects of multiple factors on farmland and built-up land landscape patterns — A case study of Chengdu, China. Ecological Indicators.

Komarolya, D. V., Kafi, M., Khansefid, M., and Diehl, J. A. (2024). Criteria for Designing Urban Parks in a Pandemic of Infectious Diseases: A survey based on experts' opinions. International Journal of Architectural Engineering & Urban Planning, 34(1).

Guo, Ru, J.A. Diehl, R. Zhang, H. Wang.  (2024).  Spatial equity of urban parks from the perspective of recreational opportunities and recreational environment quality: A case study in Singapore.  Landscape and Urban Planning 247, 105065.

Wu, Yimeng and J.A. Diehl.  (2024).  Evaluating the Economic Sustainability of Commercial Complex Greening based on Cost benefit Analysis: A Case Study of Singapore's Shaw Center.  Ecological Indicators, 161, 111890.

Li, Wenpei, F. Dai, J.A. Diehl, M. Chen and J. Bai.  (2023).  Exploring the spatial pattern of community urban green spaces and COVID-19 risk in Wuhan based on a random forest model.  Heliyon 9, e19773.  DOI: https://doi.org/10.1016/j.heliyon.2023.e19773.

Diehl, J.A. and M. Bose.  (2023).  A sustainable livelihoods approach to measuring mobilization of resources through social networks among vulnerable populations: A case study of Delhi farmers. Social Science and Humanities.

Chan, Wing Fai and J.A. Diehl.  (2022).  Investigating Participatory Design and Community Attachment: A Case Study of Sai Ying Pun, Hong Kong. Journal of Urbanism: International Research on Placemaking and Urban Sustainability.

Xu, HuiBo, S.T. Wu and J.A. Diehl (2022). Can artificial ecological corridors be used for ecological restoration of cultivated land in Chinese Mollisols? Frontiers in Plant Science, 13:977297. DOI: 10.3389/fpls.2022.977297

Diehl, J.A., Németh, J., Thomas, D. S. K., & Bose, M. (2022). Power through social networks: A case study of urban farmers facing land development in Delhi, India. Habitat International, 128, 102626. DOI: https://doi.org/10.1016/j.habitatint.2022.102626

Toh, Z. G., & Diehl, J. A. (2022). Projecting nostalgia: Portrayal of memoryscapes in local cinema as place attachment for community-driven redevelopment of Singapore landscapes. Singapore Journal of Tropical Geography, n/a(n/a). DOI: https://doi.org/10.1111/sjtg.12441

Xu, Huibo, S. Wu, and J.A. Diehl.  (2022) The influence of Harbin forest-river ecological corridor construction on the restoration of mollisols in cold regions of China. Forests.  13: 652.

Diehl, J.A., K. Asahiro, P.Y. Tan, Y.H. Hwang, T. Hirashima, L. Kong, Z. Wang, and H. Yao. (2022). (Survey Report) A coupled human and natural systems (CHANS) approach to investigating post-disaster recovery potential in rural Japan. Journal of Disaster Research. 17(3).

Diehl, J.A. and I. Chan. (2021) Is it just apathy? Using the Theory of Planned Behaviour to understand young adults’ (18 to 35 years old) response to government efforts to increase planning participation in Singapore.  Urban Governance, special issue on Social Inclusion, Social Innovation and Urban Governance.

Diehl, J.A., E. Sweeney, B. Wong, C.S. Sia, H. Yao, and M. Prabhudesai. (2020). Feeding cities: Singapore's approach to land use planning for urban agriculture.  Special issue: Sustainable food systems and diets.  Global Food Security.  26: 100377.

Diehl, J.A. (2020) Growing for Sydney: Exploring the urban food system through farmers’ social networks.  Special issue: A Systemic Perspective on Urban Food Supply: Assessing Different Types of Urban Agriculture.  Sustainability.  12: 3346.

Chandra, Amanda Jennifer and J.A. Diehl.  (2019) Urban agriculture, food security, and development policies in Jakarta: A case study of farming communities at Kalideres – Cengkareng district, West Jakarta.  Land Use Policy.  89: 104211. 

Diehl, J.A., K. Oviatt, A.J. Chandra and H. Kaur.  (2019). Household food consumption patterns and food security among low-income migrant urban farmers in Delhi, Jakarta, and Quito. Sustainability.  11(5): 1378-1395.

Diehl, J., D. Guenther, S. Lockhart, and D. Main. (online 2017; print 2019).  Access in the Food Environment: A Health Equity Approach Reveals Unequal Opportunity. Journal of Planning Education and Research.  2020, Vol. 40(1) 69–81.

Zhang, Liqing, P.Y. Tan, J. Diehl. (2017). A conceptual framework for studying urban green spaces effects on health. Journal of Urban Ecology.  3(1): 1-13.

[Former surname: Cook]

Cook, J., E. McCormick, A. Davidson, T. Mickiewicz, and D. Main. (2017).  Associations between Self-Reported Weight Status and Meeting Recommendations for Healthy Eating and Physical Activity among High School-Aged Children in Denver, Colorado.  Journal of School Health.  87(12): 923-931.

Cook, J., K. Oviatt, H. Kaur, D. Main, and J. Brett.  (2015).  Re-conceptualizing Urban Agriculture: An exploration of farming along the banks of the Yamuna River in Delhi, India.  Journal of Agriculture and Human Values.  32(2): 265-279.

Cook, J., M. Bose, and D. Main.  (2014).  Design Quality Preferences for Walking in Youth in a Rural Setting.  Journal of Urban Design. 19(2): 171-188.

Cook, J., M. Bose, W. Marshall, and D. Main.  (2013).  How Does Design Quality Add to Our Understanding of Walkable Communities?  Landscape Journal.  32(2): 151-162.

Books

Diehl, J.A. (2023). Grown in Delhi: A political ecology of social networks and agency among Yamuna farmers. Springer Nature.

Edited Books

Diehl, J.A., and H. Kaur (eds.).  (2021).  New Forms of Urban Agriculture: An Urban Ecology Perspective.  Springer Singapore.

Book Chapters

Diehl, J.A. (2024) In pursuit of a traditional livelihood: Insights from Singapore’s farmers in Sustainable Urban Agriculture: New Frontiers by Kheir M. Al-Kodmany (ed).

Diehl, J.A. (2024). A foodscape geonarrative: Mapping in/formal foodscapes in Bangalore, India in Urban Food Mapping: Making Visible the Edible City by Katrin Bohn and Mikey Tomkins (eds). Routledge.

Diehl, J.A. (2022). Grown in the City: A design typology for productive urban landscapes in Urban and Regional Agriculture: Building Resilient Food Systems by Peter Droege (ed). Elsevier.

Diehl, J.A. (2021) Field work: A mixed-methods social network analysis of urban farmers and hired laborers in four cities in New Forms of Urban Agriculture: An Urban Ecology Perspective by J.Diehl and H.Kaur (eds).  Springer Singapore.

Sia C.S. and J.A. Diehl (2021) Blurring the boundaries: How an emerging group of urban-integrated farmers in Singapore are changing the profile of farm labour in New Forms of Urban Agriculture: An Urban Ecology Perspective edited by J.Diehl and H.Kaur.  Springer Singapore.

Diehl, J.A. and K. Oviatt. (2019).  Productive Urban Landscapes: Emerging Typologies of Form and Function in Urban Landscapes in High Density Cities edited by Bianca Maria Rinaldi and Puay Yok Tan.  Basel: Birkhäuser Verlag. 

Diehl, J.A., C.S. Sia, A.J. Chandra. (2018). Cities linked through food trans-boundaries: The case of Singapore as an Agri-pelago in Agrourbanism: Tools for Governance and Planning of Agrarian Landscape edited by Enrico Gottero. Springer.

Diehl, J.A., M. Bose, and D. Main. (2018). A social and spatial network approach to understanding beliefs and behaviors of farmers facing land development in Delhi, India in Cities as Social and Spatial Networks edited by Xingjian Liu and Xinyue Ye. Springer.

Diehl, J.A., Ho, K.C., Thio, S.W., Wong, S.C. and Yeap, S.K.  (2023).  Participatory action research in Singapore’s public housing to understand place attachment and inconsiderate neighbour behaviour.  Paper presented at Environmental Design Research Association 54th Annual Meeting. June 20 – 23, 2023.  Mexico City, Mexico. 

Fan, L. and Diehl, J.A.  (2023).  Towards a Circular Urban-Rural Food System (URFS): Development of a Framework.  Paper presented at Environmental Design Research Association 54th Annual Meeting. June 20-23, 2023.  Mexico City, Mexico. 

Diehl, J.A.  and Fan, L. (2023).  Food security and food sovereignty in opposition: A case study of Asian megacities Bangalore, Chengdu, and Jakarta.  Paper presented at AFHVS / ASFS 2023 a joint conference of Agriculture, Food & Human Values Society (AFHVS) and the Association for the Study of Food and Society (ASFS).  May 31-June 3, 2023. Boston, Massachusetts, USA.

Diehl, J.A (2021).  Roots versus Reach: A political ecology of traditional farmers in Singapore.  Paper presented virtually at ASFS/AFHVS/CAFS/SAFN 2021, a joint conference hosted by Association for the Study of Food and Society (ASFS), Agriculture, Food & Human Values Society (AFHVS).  June 9 - 15, 2021.  New York City, USA.

Khan, Eingeel and Diehl, J.A. (2021). Leveraging Ecosystem Services in Existing Back Alleys for Creating Just Public Places of the Poor and Marginalized in Delhi, India. Paper presented virtually at the Environmental Design Research Association 52st Annual Meeting.  19-23 May, 2021.  Detroit, Michigan, USA.

Fan, Lei and Diehl, J.A. (2021). Integration of Ecosystem Services in Street Redevelopment of Urban Informal Settlements. Paper presented virtually at the Environmental Design Research Association 52st Annual Meeting.  19-23 May, 2021.  Detroit, Michigan, USA.

Chan, Wing Fai and Diehl, J.A. (2021). Investigating Participatory Design and Community Attachment: A Case Study of Sai Ying Pun, Hong Kong. Paper presented virtually at the Environmental Design Research Association 52st Annual Meeting.  19-23 May, 2021.  Detroit, Michigan, USA.

Diehl, J.A. (2021). Grown in Singapore: An MLA Design Studio Explores Ten Landscape Typologies for Designing Multi-Functional Productive Landscapes. Paper presented virtually at the Environmental Design Research Association 52st Annual Meeting.  19-23 May, 2021.  Detroit, Michigan, USA.

Diehl, J.A. (2021). They Might be Farmers in Their Village, but Here They Are Squatters’: Trans-Local Identities Along the Yamuna Floodplain in Delhi, India. Paper to be presented virtually at the Environmental Design Research Association 52st Annual Meeting.  19-23 May, 2021.  Detroit, Michigan, USA.

Diehl, J.A. (2021). Friends and Frenemies: A case study of social networks among urban farmers in Delhi, India. Paper presented virtually at the American Association of Geographers 2021 Annual Meeting. 7-11 April, 2021.  Seattle, Washington, USA.

Diehl, J.A. (2020). A case study of how Sydney farmers’ social networks sustain a productive livelihood. Paper presented virtually at the 4th International Conference on Global Food Security 2020. 6-9 Dec, 2020.  Le Corum, Montpellier, France.

Diehl, J.A. and C.S. Sia (2020). Interrogating the geographic boundaries of “urban” agriculture: an investigation of farming in Singapore and Sydney. Paper presented virtually at the American Association of Geographers 2020 Annual Meeting. 6-10 April, 2020.  Denver, Colorado, USA.

Diehl, J.A., X. Qian  and Y. Su. (2020). Engaging local residents in sustainable placemaking: Findings from case studies of CBPP in the Singapore public housing estate and ecotourism in the Chinese historic village. Paper presented virtually at the Environmental Design Research Association 51st Annual Meeting.  4-7 April, 2020.  Tempe, Arizona, USA.

Diehl, J.A. (2020). Using the geonarrative to surface the cultural landscape of Singapore: a spatial visualization of in/formal spatial practice. Paper presented virtually at the Environmental Design Research Association 51st Annual Meeting.  4-7 April, 2020.  Tempe, Arizona, USA.

Diehl, J.A., C.S. Sia, A.J. Chandra, and H. Kaur.  (2019).  Mapping social networks of urban farmers: A comparison of four case cities in developing versus developed countries in Asia/Australia.  Paper presented at the International Society of Participatory Mapping (ISPM) conference 17-19 June, 2019.  Helsinki, Finland.

Diehl, J.A. (2019).  A foodscape geo-narrative in an unplanned settlement in Bangalore, India: spatial visualization of in/formal spaces and habits.  Paper presented at the International Society of Participatory Mapping (ISPM) conference 17-19 June, 2019.  Helsinki, Finland.

Diehl, J.A. and K.W. Yong (2018).  Active learning in a participatory design studio: Enabling students to reach out to communities.  Paper presented at Great Asian Streets Symposium / Pacific Rim Community Design Network / Structures for Inclusion December 14-16, 2018.  Singapore.

Diehl, J.A and C.S. Sia.  (2018).  Tradition goes high tech: South and Southeast Asia’s emerging urban farm entrepreneurs.  Paper presented at AFHVS/ASFS 2018, a joint conference hosted by Agriculture, Food & Human Values Society (AFHVS) and the Association for the Study of Food and Society (ASFS).  June 13 - 16, 2018.  Madison, Wisconsin, USA.

Diehl, J.A.  (2018). Community-health partnerships informed by GIS: Identifying health and social inequity through place-based mapping.  Paper presented at the Environmental Design Research Association 49^th Annual Meeting.  June 6 - 9, 2018.  Oklahoma City, Oklahoma, USA.

Cook, J.A.  (2018).  Social (in)equity and social capital: A case study of social relationships among marginalized urban farmers in Delhi, India.  Paper presented at the Environmental Design Research Association 49th Annual Meeting.  June 6 - 9, 2018.  Oklahoma City, Oklahoma, USA.

Cook, J. and K. Oviatt.  (2017).  A pilot study of household food security and domestic roles among migrant farmers in Delhi, India.  Paper presented at Situating Domesticities in Architecture Workshop.  Dec 6 - 7, 2017.  Singapore.

Cook, J., M. Bose, and D. Main.  (2017).  An exploration of community engagement in informal spaces: A case study of urban farmers facing land development in Delhi, India.  Paper presented at Council of Educators in Landscape Architecture Annual Conference.  May 26 – 29, 2017.  Beijing, CHINA.

Cook, J., M. Bose, and D. Main.  (2017).  A social and spatial network approach to understanding beliefs and behaviors of farmers facing land development in Delhi, India.  Paper presented at the American Association of Geographers Annual Meeting.  April 5 – 9, 2017.  Boston, Massachusetts, USA.

Cook, J., M. Bose, J. Brett, J. Nemeth, D. Thomas, H. Kaur, D. Main. (2014). Understanding community participation from the bottom up: A case study of urban farmers facing land development in Delhi, India.  Paper presented at the Environmental Design Research Association 45^th Annual Meeting.  May 28 - June 1, 2014.  New Orleans, Louisiana, USA.

Cook, J.  (2014).  Understanding community participation from the bottom up: A case study of urban farmers facing land development in Delhi, India.  Paper presented at the South and Central Asian Fulbright Conference.  March 9-13, 2014.  Chennai, Tamil Nadu, INDIA.

Cook, J., D. Guenther, E. Ross, S. Lockhart, and D. Main.  (2013).  Taking Neighborhood Health to Heart: Linking the Food Environment and Diet.  Paper presented at the Environmental Design Research Association 44^th Annual Meeting.  May 29 - June 1, 2013.  Providence, Rhode Island, USA.

Oviatt, K., J. Cook, J. Brett, D. Main, and H. Kaur.  (2013).  Farming Delhi: A Social-Ecological Perspective of Urban Agriculture.  Paper presented at the 2013 Society for Applied Anthropology Annual Meeting.  March 19-23, 2013.  Denver, Colorado, USA.

Brett, J., K. Oviatt, and J. Cook.  (2012).  Using GIS and Ethnography to Better Understand Urban Farming Systems.  Paper presented at the 111th American Anthropological Association Conference.  November 14-18, 2012.  San Francisco, California, USA.

Oviatt, K., J. Cook, J. Brett, and D. Main.  (2012).  Urban agriculture in Delhi, India: An exploration of farming along the banks of the Yamuna River. Paper presented at the 2012 Society for Applied Anthropology Annual Meeting.  March 27-31, 2012.  Baltimore, Maryland, USA.      

Oviatt, K., J. Cook, J. Brett, and D. Main.  (2012).  Urban agriculture in Delhi, India: An exploration of farming along the bank of the Yamuna River.  Paper presented at the OnSustainability Conference 2012.  January 10-12, 2012.  Vancouver, CANADA.

Cook, J., M. Bose, and D. Main.  (2011).  Design Quality Preferences for Active Living: Youth in Rural Areas.  Paper presented at the International Conference on the Constructed Environment 2^nd Annual Conference.  October 29-30, 2011.  Chicago, Illinois, USA.

Cook, J., M. Bose, D. Main, and W. Marshall.  (2011).  How does measuring ‘design quality’ add to our understanding of ‘walkable’ communities?  Paper presented at the Environmental Design Research Association 42^nd Annual Meeting.  May 25-28, 2011.  Chicago, Illinois, USA.

Cook, J. and M. Bose.  (2010).  Aesthetics and Health: What is the Relationship Between Design Quality Indicators of the Built Environment and Health Status of Youth in Rural Pennsylvania?  Paper presented at the Council of Educators in Landscape Architecture 2010 Annual Conference.  May 12-14, 2010.  Maastricht, NETHERLANDS.

Cook, J. and M. Bose.  (2009).  Examining the Relationship between Design Quality Indicators of the Built Environment and Health Status in Rural Pennsylvania.  Paper presented at the Council of Educators in Landscape Architecture 2009 Annual Conference.  January 14-17, 2009.  Tucson, Arizona, USA.

Bose, M. and J. Cook.  (2009).  Household Food Security, Diet, and Community Nutrition Environment of Public Housing Residents in Harrisburg, PA.  Paper presented at the Council of Educators in Landscape Architecture 2009 Annual Conference.  January 14-17, 2009.  Tucson, Arizona, USA. 

Bose, M. and J. Cook.  (2007).  A Comparison of the Nutrition Environment and Nutrition Status of Female Public Housing Residents in Harrisburg, PA.  Paper presented at the Council of Educators in Landscape Architecture 2007 Annual Conference.  August 15-19, 2007.  University Park, Pennsylvania, USA.

Bose, M. and J. Cook.  (2007).  Examining the Community Nutrition Environment of Public Housing Residents in Harrisburg, PA.  Paper presented at the Environmental Design Research Association 38^th Annual Meeting.  May 30 - June 3, 2007.  Sacramento, California, USA.

• Agriculture
• Journal of Agriculture and Human Values (AHUM)
• Agronomy
• AIMS Agriculture and Food
• All Life
• Cities & Health
• Ecology and Society
• Ecology of Food and Nutrition
• Environment and Sustainability Indicators
• eTropic: Electronic Journal of Studies in the Tropics
• Forum Qualitative Sozialforschung / Forum: Qualitative Social Research
• Geography Compass
• Heliyon
• International Journal of Environmental Research and Public Health (IJERPH)
• International Journal of Urban Sustainable Development (IJUSD)
• International Real Estate Review
• Journal of Planning Education and Research (JPER)
• Journal of Spatial Science (JOSS)
• Journal of Urbanism
• Land Use Policy
• Landscape and Urban Planning
• Landscape Journal
• Open Agriculture
• Regional Sustainability
• Renewable Agriculture and Food Systems
• Social Sciences and Humanities
• Social Science & Medicine
• Sustainability
• Sustainable Cities and Society
• Transactions of the Institute of British Geographers
• Urban Forestry & Urban Greening (UFUG)