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Dr Wilma J. Blaser Hart
Dr

Wilma J. Blaser Hart

Email: 

Overview

Background

How do we feed the world, adapt to and mitigate climate change, and conserve biodiversity? My research addresses these critical questions by quantifying the trade-offs between agricultural production, climate change, and biodiversity in tropical agricultural landscapes. A key focus of my work is agroforestry—the strategic integration of trees into cultivated lands. While agroforests are not a one-size-fits-all solution, my research shows that agroforestry, when informed by a quantitative understanding of these trade-offs, can improve biodiversity and climate outcomes without compromising agricultural productivity.

Through fieldwork and conservation planning, and in collaboration with my wonderful colleagues at the Centre for Biodiversity and Conservation Science (CBCS), I aim to understand how agricultural landscapes can be optimized across large geographic areas, to best meet conflicting goals and improve biodiversity outcomes. The goal of this work is to improve sustainability outcomes across West Africa, where tropical forests have been rapidly converted in order to produce 60% of the world’s cocoa.

Availability

Dr Wilma J. Blaser Hart is:
Available for supervision

Qualifications

  • Bachelor of Environmental Science, Swiss Federal Institute of Technology ETH Zürich
  • Masters (Coursework), Swiss Federal Institute of Technology ETH Zürich
  • Doctor of Philosophy of Science (Advanced), Swiss Federal Institute of Technology ETH Zürich

Research interests

  • Agroforestry

  • Cocoa

Works

Search Professor Wilma J. Blaser Hart’s works on UQ eSpace

51 works between 2011 and 2025

21 - 40 of 51 works

2025

Other Outputs

The unrealised potential of agroforestry (Raw drone images GHA 2022 Part C)

Hart, Wilma J. Blaser and Hart, Simon (2025). The unrealised potential of agroforestry (Raw drone images GHA 2022 Part C). The University of Queensland. (Dataset) doi: 10.48610/eb36fd7

The unrealised potential of agroforestry (Raw drone images GHA 2022 Part C)

2025

Other Outputs

The unrealised potential of agroforestry (Raw drone images GHA 2022 High Shade Part B)

Hart, Wilma J. Blaser and Hart, Simon (2025). The unrealised potential of agroforestry (Raw drone images GHA 2022 High Shade Part B). The University of Queensland. (Dataset) doi: 10.48610/6199f9b

The unrealised potential of agroforestry (Raw drone images GHA 2022 High Shade Part B)

2025

Other Outputs

The unrealised potential of agroforestry (Raw drone images & polygons CIV Aboisso)

Hart, Wilma J. Blaser and Hart, Simon (2025). The unrealised potential of agroforestry (Raw drone images & polygons CIV Aboisso). The University of Queensland. (Dataset) doi: 10.48610/b46b1ff

The unrealised potential of agroforestry (Raw drone images & polygons CIV Aboisso)

2025

Other Outputs

The unrealised potential of agroforestry (Maps of agro-climatic zones)

Hart, Wilma J. Blaser and Hart, Simon (2025). The unrealised potential of agroforestry (Maps of agro-climatic zones). The University of Queensland. (Dataset) doi: 10.48610/844d738

The unrealised potential of agroforestry (Maps of agro-climatic zones)

2025

Other Outputs

The unrealised potential of agroforestry (Raw drone images GHA 2022 Part E)

Hart, Wilma J. Blaser and Hart, Simon (2025). The unrealised potential of agroforestry (Raw drone images GHA 2022 Part E). The University of Queensland. (Dataset) doi: 10.48610/2418854

The unrealised potential of agroforestry (Raw drone images GHA 2022 Part E)

2025

Other Outputs

The unrealised potential of agroforestry (Raw drone images GHA 2022 Part B)

Hart, Wilma J. Blaser and Hart, Simon (2025). The unrealised potential of agroforestry (Raw drone images GHA 2022 Part B). The University of Queensland. (Dataset) doi: 10.48610/760cdba

The unrealised potential of agroforestry (Raw drone images GHA 2022 Part B)

2025

Other Outputs

The unrealised potential of agroforestry (Raw drone images GHA 2022 Part F)

Hart, Wilma J. Blaser and Hart, Simon (2025). The unrealised potential of agroforestry (Raw drone images GHA 2022 Part F). The University of Queensland. (Dataset) doi: 10.48610/c61a4b2

The unrealised potential of agroforestry (Raw drone images GHA 2022 Part F)

2025

Other Outputs

The unrealised potential of agroforestry (Raw drone images GHA 2021 Part C)

Hart, Wilma J. Blaser and Hart, Simon (2025). The unrealised potential of agroforestry (Raw drone images GHA 2021 Part C). The University of Queensland. (Dataset) doi: 10.48610/3f196df

The unrealised potential of agroforestry (Raw drone images GHA 2021 Part C)

2025

Other Outputs

The unrealised potential of agroforestry (Processed maps GHA 2022 all exports)

Hart, Wilma J. Blaser and Hart, Simon (2025). The unrealised potential of agroforestry (Processed maps GHA 2022 all exports). The University of Queensland. (Dataset) doi: 10.48610/a2ecf22

The unrealised potential of agroforestry (Processed maps GHA 2022 all exports)

2025

Other Outputs

The unrealised potential of agroforestry (Raw drone images GHA 2021 Part B)

Hart, Wilma J. Blaser and Hart, Simon (2025). The unrealised potential of agroforestry (Raw drone images GHA 2021 Part B). The University of Queensland. (Dataset) doi: 10.48610/ed7edcd

The unrealised potential of agroforestry (Raw drone images GHA 2021 Part B)

2024

Journal Article

Correction to: Smallholder farmer resilience to extreme weather events in a global food value chain

Thompson, William J., Varma, Varun, Joerin, Jonas, Bonilla-Duarte, Solhanlle, Bebber, Daniel P., Blaser-Hart, Wilma, Kopainsky, Birgit, Späth, Leonhard, Curcio, Bianca, Six, Johan and Krütli, Pius (2024). Correction to: Smallholder farmer resilience to extreme weather events in a global food value chain. Climatic Change, 177 (11) 168. doi: 10.1007/s10584-024-03818-y

Correction to: Smallholder farmer resilience to extreme weather events in a global food value chain

2024

Journal Article

Drivers of cocoa yield and growth in young monoculture and agroforestry systems

Ariza-Salamanca, Antonio Jesús, Navarro-Cerrillo, Rafael Mª., Crozier, Jayne, Stirling, Clare, Mancini, Agnese, Blaser-Hart, Wilma and González-Moreno, Pablo (2024). Drivers of cocoa yield and growth in young monoculture and agroforestry systems. Agricultural Systems, 219 104044, 104044. doi: 10.1016/j.agsy.2024.104044

Drivers of cocoa yield and growth in young monoculture and agroforestry systems

2024

Other Outputs

The feasibility of cocoa production in Tonga: an assessment

Hine, Damian, Mitter, Neen, Blaser-Hart, Wilma, Shabbir Ahmad, Xiong, Ling, Wei, Tao and Howard, Alice (2024). The feasibility of cocoa production in Tonga: an assessment. Brisbane, QLD, Australia: The University of Queensland.

The feasibility of cocoa production in Tonga: an assessment

2024

Journal Article

Mycorrhizal fungi-mediated uptake of tree-derived nutrients by crops –the role of tree-maintained versus crop-associated fungal mycelia

Dierks, Janina, Gamper, Hannes A., Blaser-Hart, Wilma J., Morales Kuan, Betsabe and Six, Johan (2024). Mycorrhizal fungi-mediated uptake of tree-derived nutrients by crops –the role of tree-maintained versus crop-associated fungal mycelia. Soil Biology and Biochemistry, 188 109243, 1-10. doi: 10.1016/j.soilbio.2023.109243

Mycorrhizal fungi-mediated uptake of tree-derived nutrients by crops –the role of tree-maintained versus crop-associated fungal mycelia

2023

Journal Article

Smallholder farmer resilience to extreme weather events in a global food value chain

Thompson, William J., Varma, Varun, Joerin, Jonas, Bonilla-Duarte, Solhanlle, Bebber, Daniel P., Blaser-Hart, Wilma, Kopainsky, Birgit, Späth, Leonhard, Curcio, Bianca, Six, Johan and Krütli, Pius (2023). Smallholder farmer resilience to extreme weather events in a global food value chain. Climatic Change, 176 (11) 152, 152. doi: 10.1007/s10584-023-03586-1

Smallholder farmer resilience to extreme weather events in a global food value chain

2022

Journal Article

Can sustainability certification enhance the climate resilience of smallholder farmers? The case of Ghanaian cocoa

Thompson, W.J., Blaser-Hart, W.J., Joerin, J., Krütli, P., Dawoe, E., Kopainsky, B., Chavez, E., Garrett, R.D. and Six, J. (2022). Can sustainability certification enhance the climate resilience of smallholder farmers? The case of Ghanaian cocoa. Journal of Land Use Science, 17 (1), 407-428. doi: 10.1080/1747423x.2022.2097455

Can sustainability certification enhance the climate resilience of smallholder farmers? The case of Ghanaian cocoa

2021

Journal Article

Mycorrhizal fungi-mediated uptake of tree-derived nitrogen by maize in smallholder farms

Dierks, Janina, Blaser-Hart, Wilma J., Gamper, Hannes A. and Six, Johan (2021). Mycorrhizal fungi-mediated uptake of tree-derived nitrogen by maize in smallholder farms. Nature Sustainability, 5 (1), 64-70. doi: 10.1038/s41893-021-00791-7

Mycorrhizal fungi-mediated uptake of tree-derived nitrogen by maize in smallholder farms

2021

Journal Article

Trees enhance abundance of arbuscular mycorrhizal fungi, soil structure, and nutrient retention in low-input maize cropping systems

Dierks, Janina, Blaser-Hart, Wilma J., Gamper, Hannes A., Nyoka, Isaac Betserai, Barrios, Edmundo and Six, Johan (2021). Trees enhance abundance of arbuscular mycorrhizal fungi, soil structure, and nutrient retention in low-input maize cropping systems. Agriculture Ecosystems & Environment, 318 107487, 107487. doi: 10.1016/j.agee.2021.107487

Trees enhance abundance of arbuscular mycorrhizal fungi, soil structure, and nutrient retention in low-input maize cropping systems

2020

Journal Article

Cocoa agroforestry systems versus monocultures: A multi-dimensional meta-analysis

Niether, Wiebke, Jacobi, Johanna, Blaser, Wilma J., Andres, Christian and Armengot, Laura (2020). Cocoa agroforestry systems versus monocultures: A multi-dimensional meta-analysis. Environmental Research Letters, 15 (10) 104085, 104085. doi: 10.1088/1748-9326/abb053

Cocoa agroforestry systems versus monocultures: A multi-dimensional meta-analysis

2020

Journal Article

Author Correction: Climate-smart sustainable agriculture in low-to-intermediate shade agroforests

Blaser, W. J., Oppong, J., Hart, S. P., Landolt, J., Yeboah, E. and Six, J. (2020). Author Correction: Climate-smart sustainable agriculture in low-to-intermediate shade agroforests. Nature Sustainability, 3 (9), 768-768. doi: 10.1038/s41893-020-0594-6

Author Correction: Climate-smart sustainable agriculture in low-to-intermediate shade agroforests

Funding

Current funding

  • 2024 - 2027
    Improving biodiversity outcomes in West African cocoa
    Lindt Cocoa Foundation
    Open grant

Past funding

  • 2021 - 2023
    Dr Wilma Hart - Maternity Funding
    Advance Queensland Women's Research Assistance Program
    Open grant
  • 2021 - 2024
    Sustainable sourcing policies for biodiversity protection, climate mitigation, and improved livelihoods in the cocoa sector (BiodivERsA grant administered by ETH Zurich)
    ETH Zurich
    Open grant
  • 2021 - 2023
    Spatially explicit recommendations for optimal levels of shade-tree cover for sustainable cocoa production
    European Cocoa Association AISBL
    Open grant
  • 2020 - 2024
    Methods and a tool for remotely estimating shade-tree cover & carbon stocks, and for developing spatially explicit recommendations for cocoa agroforests
    ETH Zurich
    Open grant

Supervision

Availability

Dr Wilma J. Blaser Hart is:
Available for supervision

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Supervision history

Current supervision

Media

Enquiries

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communications@uq.edu.au