Study Finds Farmers Prefer Boundary Tree Planting, Challenging Conventional Afforestation Programs

UK-based Duke University Postdoctoral Scholar Dr. Danny Tobin has highlighted the crucial role of farmers’ preferences in shaping successful tree-planting programs. Speaking at Makerere University’s Environment for Development (EfD) Centre, Tobin presented findings from a study on smallholder farmers in southern India, exploring why they choose certain tree species and planting systems within an NGO-led afforestation program.

The study  titled, “Guiding Private Afforestation to raise public-Goods Provision : Exploring Farmers preferences for trees within an NGO Tree planting program in Southern India” was presented to a research seminar at Makerere University on March 9, 2026.

Dr. Tobin presented what drives communities to take up different kinds of tree species, and even the planting system that they use, either planting on the boundary, intercropping, or cluster planting these different trees, either forest trees, timber trees, or the fruit and medicinal plants.

The study revealed that smallholder farmers strongly prefer planting trees along farm boundaries rather than within their crop fields, a finding that could significantly reshape the design of afforestation and agroforestry programs aimed at addressing climate change and biodiversity loss. The research examined how farmers make decisions about tree planting on private agricultural land and found that preferences vary widely depending on farmers’ economic conditions, farming practices, and environmental challenges. The study emphasizes that tree-planting initiatives must be carefully designed to align with farmers’ priorities if they are to deliver both environmental and livelihood benefits.

The research focused on smallholder farmers living within five kilometers of two protected areas in the southern Indian state of Karnataka. Using a structured survey method known as a discrete choice experiment, the study collected responses from 400 farmers who were presented with different tree-planting options, including timber, fruit, mixed species, and medicinal trees arranged in various planting patterns such as farm boundaries, intercropping within fields, or clustered plots. The results showed a clear preference for planting timber trees along farm boundaries, which farmers viewed as the least disruptive to crop production and farm management.

According to the study findings, most farmers were willing to adopt boundary planting even without financial incentives. In contrast, options that required planting trees within crop fields such as fruit intercropping or clustered mixed-species plantations generally required compensation to encourage adoption. Programs that aimed to create dense clusters of mixed trees to support biodiversity would require the highest level of incentives, as these arrangements compete directly with agricultural land use.

The study also identified several factors that influence farmers’ willingness to plant trees. Farmers with better resources such as higher income levels, irrigation systems, and higher education were generally more willing to adopt tree planting. Conversely, farmers with smaller land holdings, lower incomes, and harsher environmental conditions were less likely to adopt tree planting options. These results highlight how economic capacity and farm productivity shape decisions about integrating trees into agricultural landscapes.

Another important finding relates to human-wildlife conflict, a major challenge for farmers living near protected areas. The study found that farmers experiencing frequent wildlife damage were significantly less interested in planting fruit trees along their farm boundaries because fruit trees could attract animals such as elephants and wild boar. Instead, these farmers preferred timber trees, which they believed might help shield crops from wildlife intrusion.

Despite the overall preference for boundary planting, the research also revealed a surprising opportunity for biodiversity-focused interventions. About one-third of the farmers surveyed indicated that they would be willing to plant fruit trees inside their fields through intercropping or orchard-style arrangements without requiring compensation. This group represents a key target for programs seeking to increase tree cover and habitat connectivity in agricultural landscapes.

Based on these findings, the study recommends that afforestation programs avoid rigid, one-size-fits-all approaches. Instead of targeting farmers based on observable characteristics such as age, income, or land size which the study found to be unreliable predictors of preferences the research suggests offering farmers a menu of tree-planting options. This flexible approach would allow farmers to choose arrangements that best fit their land, resources, and risk tolerance while still contributing to environmental goals.

The study concludes that successful tree-planting programs must balance environmental objectives with farmers’ economic realities. By incorporating farmers’ preferences into program design and offering flexible participation options, policymakers and environmental organizations can increase adoption rates, improve tree survival, and enhance the long-term benefits of afforestation initiatives for both rural livelihoods and the environment.

In his welcome remarks the Director EfD Makerere Centre, Prof. Edward Bbaale, underscored the importance of aligning environmental programs with farmers’ needs if afforestation initiatives are to succeed.

Prof. Bbaale said the EfD committed to rigorous research at the intersection of environment, natural resources, and economic development. He noted that the centre regularly organizes research seminars to create a platform for scholars, policymakers, and practitioners to exchange ideas, present ongoing research, and engage in constructive academic dialogue on pressing development challenges.

Welcoming Dr. Tobin to the seminar,  Bbaale highlighted the longstanding collaboration between the EfD Mak Centre and Jeffrey Vincent, Professor of Forest Economics and Management at the Nicholas School of the Environment at Duke University. He explained that the partnership has produced important research on forestry, land use, and rural livelihoods over the past several years.

He pointed to a recent joint study conducted under the leadership of Patrick Byakagaba, a Senior Research Fellow at the EfD MakCentre, which examines the livelihood impacts of forest plantations on state-owned land. The research, titled Differential Livelihood Impacts of Eucalyptus and Pine Plantations on State-Owned Land, has been accepted for publication in the Journal of Forest Economics, marking what Prof. Bbaale described as the culmination of more than four years of collaborative work involving data collection and analysis.

According to Bbaale, the seminar by Dr. Tobin builds on this strong partnership and reflects the growing collaboration between Makerere researchers and international scholars. He said the study being presented was co-authored with Prof. Vincent and addresses an issue of growing global and regional importance—how tree-planting programs can be designed to meet both environmental goals and the livelihood needs of farmers.

“The topic is highly relevant, not only to the global agenda on climate change mitigation and landscape restoration, but also to policy discussions taking place in Africa and Uganda in particular,” Prof. Bbaale said. He explained that as countries expand afforestation and reforestation initiatives, it is essential to understand farmers’ incentives, preferences, and livelihood realities to ensure that such programs achieve their intended ecological and social outcomes.

He noted that research like Dr. Tobin’s provides valuable insights into how private land-use decisions can be guided to generate both private benefits for farmers and broader public goods such as carbon sequestration, biodiversity conservation, and improved ecosystem services.

Prof. Bbaale also emphasized that the seminar reflects Makerere University’s growing focus on internationalization and research partnerships as the institution strengthens its position as a research-led university. He said collaborations with global institutions such as Duke University are critical for advancing knowledge, producing impactful research, and addressing complex environmental and development challenges.

He welcomed Dr. Tobin’s visit to Uganda as an important opportunity for knowledge exchange and engagement with students and researchers at the university. Prof. Bbaale concluded by expressing appreciation for the continued collaboration with Duke University scholars and said the centre looked forward to further joint research initiatives in the future.

Call for Stronger Research–Private Sector Linkages in Environmental Conservation

The Deputy Director of the EfD Mak Centre, Dr. Alice Turinawe, emphasized the need for stronger collaboration between researchers, the private sector, and other stakeholders to ensure that environmental conservation research translates into practical solutions.

Speaking during the closing session, Dr. Turinawe thanked participants for their active engagement and highlighted the importance of sharing research widely so that it can be improved through feedback and dialogue. She noted that meaningful environmental solutions emerge when research findings are openly discussed and refined by diverse stakeholders.

Dr. Turinawe also commended the seminar presentation by visiting researcher Dr. Tobin, which explored conservation approaches and partnerships with farmers. She said the presentation underscored the importance of examining both private and public benefits in environmental interventions. According to her, such partnerships are essential for ensuring that conservation initiatives are both economically viable and socially beneficial.

She stressed that the EfD Mak Centre places strong emphasis on research that bridges the gap between academic work and real-world application. “One of our key goals is to ensure that the research conducted in our offices and in the field is connected to the private sector and other stakeholders who can implement the findings,” she said.

Dr. Turinawe further encouraged researchers to ensure that their findings are disseminated widely through platforms that can influence policy, development programs, and community practices. She noted that the impact of research depends largely on how effectively the results are shared and utilized.

She concluded by appreciating the scholars and participants who attended the seminar despite their busy academic schedules, noting that their engagement keeps the centre’s research community vibrant and productive.

The EfD Mak Centre, based at Makerere University, focuses on generating evidence to support environmental and natural resource policy decisions. The centre brings together academia, policymakers, and practitioners to strengthen the use of economic evidence in addressing environmental challenges.

Practical and Policy-Relevant Insights Appreciated

Overall, participants noted that the seminar provided both practical and policy-relevant insights into understanding farmers’ preferences, improving tree-planting programs,and supporting sustainable environmental and economic outcomes.

EfD-Mak Centre Manager Gyaviira Ssewankambo said the study offered valuable insights into what motivates farmers to adopt different tree species such as forest trees, timber varieties, and medicinal plants. He explained that the research also addressed challenges faced by farmers, including the risks posed by wildlife. In some cases, farmers living near game parks avoid planting fruit trees for fear that animals such as elephants could destroy their crops. According to Ssewankambo, these experiences mirror situations in communities near protected areas in Uganda, suggesting that lessons from India could help shape local strategies for promoting afforestation.

“Dr. Danny Tobin presented a very insightful study from India about forestry—what drives communities to take up different tree species, and the planting systems they use, whether on boundaries, intercropping, or cluster planting. We hope our Ugandan community can learn lessons, especially on issues like wildlife affecting fruit tree planting near game parks.”

He added that the study also examined the economic trade-offs farmers face when allocating land to trees rather than crops. While tree planting offers environmental and long-term economic benefits, farmers must weigh these gains against the immediate need for space to grow food crops. Ssewankambo expressed optimism that once the research is fully completed, it could provide important lessons for Uganda, just as EfD previously drew inspiration from forestry experiences in Nepal.

For Joab Wamani, an assistant lecturer at the School of Economics, the seminar was particularly valuable for its methodological insights. He noted that beyond the presentation’s clear communication, the research design and conceptualisation stood out. Wamani said the way the study framed its research questions and selected methods offered important learning points for researchers seeking to conduct rigorous environmental economics studies.

“His slides were clear and inspiring, but what really interested me was the research design—the way he conceptualised the topic, developed his research questions, and chose his methods. That was the main knowledge I took away.”

Students who attended the seminar also reflected on practical lessons for farming and environmental management. Nyeko Francis, a Master’s student in Economic and Investment Modelling, said the discussion encouraged him to view tree planting as a routine agricultural activity rather than something done only for environmental protection.

“I learned that tree planting can be normalised like any other crop activity. For example, planting mangoes or oranges in a designated area can be planned and managed like a crop garden. Tree planting is more than just protecting boundaries—it can be integrated into regular farming for better yield.”

Similarly, doctoral student Mansur Sewali, a development economist specialising in economic policy and planning, said the seminar highlighted the broader benefits of afforestation. While tree planting brings direct returns to farmers, he noted that the environmental benefits extend to society as a whole, illustrating the connection between private investment and public good.

“Despite tree planting benefiting the individual farmer, these benefits can also pass on to society at large. That was the key point I took from the seminar.”

EfD research fellow Aisha Nanyiti emphasised the importance of incentives in promoting tree planting. She explained that countries like Uganda, where forests are rapidly being depleted, can benefit from policies that encourage farmers to adopt sustainable practices. Nanyiti said the study showed that many farmers prefer planting trees along farm boundaries, though some also favour intercropping trees with other crops. She added that continuous training and community sensitisation are essential to ensure both the adoption and survival of trees.

“Farmers in India appreciated planting trees along boundaries and in intercropping systems. The key takeaway is that incentivising farmers is essential for adoption, but ongoing training and community sensitisation are equally important to ensure tree survival and environmental restoration.”

Another student, Nichirange Edida, said the seminar reinforced the importance of tree planting in addressing climate change and environmental conservation. He noted that boundary planting and intercropping allow farmers to maintain crop production while also protecting the environment. Inspired by the discussion, Edida said he hopes to apply these practices in his own farming activities.

“This seminar taught me how farmers can address climate change through planting trees, especially on boundaries and through intercropping. It conserves the environment while allowing farmers to grow fruit and timber trees. I believe I can apply this in my own farming.”

Jane Anyango is the Communication Officer, EfD-Mak Centre