Maintaining Food Security Through Local Wisdom: Case Studies of Subak in Bali and Tumpang Sari in Java
As climate change worsens, the world is faced with the challenge of meeting food demands and maintaining food security. One way to address this is by tapping into local wisdom to deal with the impacts of climate change on agriculture. Th…
As climate change worsens, the world is faced with the challenge of meeting food demands and maintaining food security.
One way to address this is by tapping into local wisdom to deal with the impacts of climate change on agriculture. This article will discuss two examples of local wisdom in Indonesia: the Subak irrigation system in Bali and the Tumpang Sari farming system in Java, and how these systems help maintain food security amid climate change.
Subak in Bali [1]

Subak is a traditional irrigation system used in Bali to manage water flow in rice fields. This system has been in place for over 1,000 years and plays an essential role in Balinese life. Subak includes irrigation channels, dams, lakes, small ponds, and terraced rice fields that are interconnected. This system is controlled by farmers who are part of a community called Banjar, which also serves as a social and religious institution.
In the face of climate change, Subak plays a vital role in maintaining food security in Bali. This system helps optimize water use, allowing farmers to adjust their planting patterns according to changing climate conditions. Additionally, Subak supports biodiversity around the rice fields, which in turn helps maintain ecosystem balance and protect crops from pest attacks.
Tumpang Sari in Java [2]

Tumpang Sari is a farming system practiced in Java, where farmers grow more than one type of crop on the same land simultaneously. This system enables farmers to optimize land use and increase crop yields. Furthermore, Tumpang Sari helps maintain soil fertility and reduces the risk of pest attacks.
In the context of climate change, Tumpang Sari is crucial as it helps farmers maintain food security. By growing multiple crops at once, farmers can reduce the risk of crop failure due to extreme weather changes. Additionally, Tumpang Sari helps maintain soil fertility and sustain crop quality despite increasingly severe climate change.
Conclusion
The Subak in Bali and Tumpang Sari in Java are examples of local wisdom capable of maintaining food security amid climate change. Both systems demonstrate how traditional agricultural techniques can adapt to climate change and still yield optimal results. Using agricultural techniques like Subak and Tumpang Sari also helps reduce the impact of climate change by managing natural resources efficiently and sustainably.
In facing the threat of climate change, it's essential for us to continue preserving and promoting local wisdom like Subak and Tumpang Sari. Support from the government and communities in exploring, developing, and implementing this local wisdom will be key to maintaining food security in this challenging era.
Moreover, collaboration between researchers, governments, and communities is needed to combine modern technology with local wisdom to create innovative and climate-adaptive agricultural techniques. For example, using information technology to monitor and control the Subak irrigation system or employing resilient crop varieties in the Tumpang Sari system.
It's important to note that local wisdom isn't limited to agricultural techniques but also encompasses lifestyles, values, and habits that support environmental sustainability and food security. Thus, preserving local wisdom isn't just the responsibility of farmers, but also of all community members.
In a global context, increased awareness of the importance of local wisdom in maintaining food security can inspire other countries to explore and preserve their local wisdom. In doing so, we can collectively address the challenges of climate change and maintain food security worldwide.
References
[1] Panendra, P. A. (2016). Jatiluwih Rice Terraces [Photograph]. Own work. Retrieved April 10, 2023, from Keindahan_Sawah_Jatiluwih.jpg (3456×2304) (wikimedia.org). Creative Common.
[2] Boesenbergia (2015). Ladang tumpang sari singkong (Manihot esculenta) dan jagung (Zea mays) [Photograph]. Own work. Retrieved April 10, 2023, from Tumpang_sari_singkong_dan_jagung.jpg (5184×3456) (wikimedia.org). Creative Common.