Thailand’s Maize Farmers Build Climate Resilience 

November 9, 2025


In Thailand, nearly one in five people depend on agriculture for their livelihoods. But climate change is impacting the seasons that farmers once relied on to sustain their livelihoods. Rainfall patterns have grown increasingly erratic, with prolonged dry seasons and more frequent floods disrupting crop cycles and yields. Some years, drought scorches the soil before plants can flower; in others, heavy rains submerge fields and sweep away harvests.

Working with communities in Thailand's Phetchabun Province, the SCALA programme — funded by Germany’s Federal Ministry for the Environment, Climate Action, Nature Conservation and Nuclear Safety (BMUKN) through the International Climate Initiative (IKI) and implemented by UNDP and FAO — has supported around 50 farmers to adapt their agricultural practices to reduce greenhouse gas emissions and manage climate risks. Through daily practices in soil and water management, the use of field record books, AI and digital weather-forecasting tools, and local knowledge sharing, farmers are strengthening their resilience while ensuring these practices reflect the needs of women, youth, and vulnerable groups in the community.

These efforts are helping turn the Climate Change Adaptation Plan for Agriculture (CCAPA), also supported by the SCALA project, into concrete action on the ground.

Explore their resilience through the stories of our four champions.

Sharing knowledge and good agriculture practices locally 

Maize farmer Kritsana Thongpheng keeps detailed records of her fields and tracks sowing dates, rainfall patterns, pest outbreaks and harvest volumes. What began years ago as simple notetaking has become an essential tool for managing risks and understanding how climate variability affects her yields.

In 2015, I lost twenty rai of corn to drought. In 2024, floods destroyed ten more,” she recalls. “But now, when the weather turns strange, I open my notebook and look back. I know what happened before and what I can do differently.”

Kritsana Thongpheng, Maize Farmer in Phetchabun Province of Thailand


Through Thailand’s Good Agricultural Practices (GAP) training supported by the SCALA programme, Kritsana Thongpheng has learned how to turn knowledge into practical action. She now plants green manure crops such as sunn hemp to naturally enrich the soil and produce bio-pesticides from local plants to reduce chemical use. Unlike many farmers who resort to burning their crop lands – a widespread practice in Thailand to quickly clear fields and control pests, but one that contributes to air pollution and soil degradation – Kritsana avoids fire altogether. 

Soil is like our skin,” she says. “If we burn it, it takes a long time to heal.”

Today, she is more than a farmer—she is also a mentor to other women in her local farming community, leading by example in a field that has been long dominated by men. Kritsana shares her methods with neighbors, proving that resilience is not just about surviving climate change, but transforming it into an opportunity for women to thrive too. Despite recurring floods and pest outbreaks, her yields have remained stable and her example is helping shift local farming practices toward more sustainable, climate-resilient methods.

For Thanya Tumhom, who also grows maize, good recordkeeping and homemade organic fertilizer once seemed unnecessary or too complex. But as the impacts of climate change became more visible with hotter temperatures, delayed rainy seasons and shifting pest patterns —she decided to change her approach. With SCALA support and GAP training, she began experimenting with new methods.

Before, ten rai gave me only nine tonnes of maize,” she says. “Now it’s twelve or thirteen. GAP really helped—it’s not difficult. You just do it step-by-step.”

Thanya Tumhom, Maize Farmer in Phetchabun Province of Thailand


As rainfall shifted, Thanya has also adjusted her planting calendar to match the changing monsoon. “We used to start in May,” she explains, “but now we wait until June or July so the corn flowers when the rains come in August.” 

This simple change helps her crops receive consistent moisture during their most critical growth stages, improving yields and reducing losses. Thanya continues to learn from peers and digital platforms alike. “We ask each other questions at the market, share what works. Everyone teaches everyone,” she says. 

Utilizing nature-based solutions and new technologies 

In a nearby village, Uncle Thongsuk Srihabut (known affectionately by his neighbors as the uncle in the yellow shirt) has turned his farm into a place where he can experiment with nature-basedsolutions. He makes organic fertilizer from molasses and spoiled fruit, experiments with plant-based pest sprays, and keeps detailed notes on what has worked best on his farm.

Thongsuk Srihabut, Maize Farmer in Phetchabun Province of Thailand


I don’t buy much from the shop anymore,” he says, showing the barrels lined up behind his house. “I use what the land gives me. If it works; I share it. If it doesn’t; I try again.”

His new practices have reduced input costs, restored soil fertility, and strengthened his sense of self-reliance. “It feels good to know we can depend on ourselves again.”

For Narongsak Ploysisang, a maize farmer who manages a pilot plot implementing adaptation practices under the SCALA programme, the future of farming lies in combining tradition with technology. When he installed a drip irrigation system powered by solar panels, his neighbors were skeptical. “They thought it was too expensive,” he recalls. “But now they see that it’s worth it.”

A man in a blue plaid shirt stands among tall dried corn stalks beside a sign.

Narongsak Ploysisang, Maize Farmer in Phetchabun Province of Thailand


Women leading in transformative climate action 

Women and other historically marginalized groups are not only participants but are increasingly shaping Thailand’s agriculture sector transformation. As women like Kritsana step into front-line roles, leading training sessions, managing soil health and record-keeping, they are helping to re-shape both land-use practices and social norms.

Before, I sat at the back of the room, afraid to speak. Now, I stand in front and share with others. We women can make a difference too,” says Kritsana.

UNDP and FAO together with Kasetsart University supporting maize farmers in Thailand to adapt to climate change


Women’s involvement underscores a broader shift: climate-smart agriculture is not just about technologies and practices, but about enabling agency, equity and resilience across communities.  

The challenges remain significant with rising input costs, volatile market prices, and increasing climate variability that continue to test farmers each season. Yet their commitment to adapt is equally strong. In Thailand, climate-smart agriculture is proving to be as much about social resilience and local innovation as it is about technology or training. It’s driven by farmers’ capacity to analyze risks, adjust their practices, and share knowledge within their communities.

Thailand’s efforts to build climate resilience extend beyond individual farms. In the country’s NDC, climate-smart agriculture has been identified as a national priority—particularly within the maize and livestock value chains that sustain millions of rural livelihoods. 

With support from the SCALA programme, a systems-level assessment, conducted with the Thailand Development Research Institute (TDRI), has helped identify key climate risks, greenhouse gas sources, and practical solutions such as improved manure management, adaptive farming practices, and the use of bioenergy. 

These insights complement the National Climate Change Action Plan for the Agricultural Sector developed by Thailand’s Ministry of Agriculture and Cooperatives and UNDP through the support from the SCALA programme; as well as Thailand’s National Adaptation Plan, submitted to the UN Framework Convention on Climate Change (UNFCCC) in 2024, which guides action across provinces and sectors to strengthen food security, safeguard natural resources, and help farmers like Kritsana and Thanya thrive in a changing climate.