Can Southeast Asia continue to be a major rice bowl?

Abstract

Southeast Asia is a major rice-producing region, with high level of internal consumption and accounting for 40% of global rice exports. Limited land resources, climate change, and yield stagnation during recent years have once again raised concerns about the capacity of the region to meet the growing demand for rice and remain as a large net exporter. Here we use a modelling approach to map rice yield gaps and assess production potential and net exports by 2040. We find that the average yield gap represents 48% of the yield potential estimate for the region. Exploitable yield gaps are relatively large in Cambodia, Myanmar, Philippines, and Thailand, but comparably smaller in Indonesia and Vietnam. Continuation of current yield trends will not allow Indonesia and Philippines to meet their domestic rice demand. In contrast, closing the exploitable yield gap would allow all countries to achieve rice self-sufficiency, with an aggregated annual rice surplus of 100 million tons available for export. Our study provides insights for increasing regional production on existing cropland by narrowing existing yield gaps.

Downscaling Global Gridded Crop Yield Data Products and Crop Water Productivity Mapping Using Remote Sensing Derived Variables in the South Asia

“…Mainland countries in the SSEA region significantly contribute in the world's food production. The South-East Asia is popularly known as rice-bowl of the world contributing up to 40% of global export (Yuan et al, 2021). Major 16 rice producing mainland countries of SSEA include Vietnam, Thailand, Sri Lanka, Philippines, Pakistan, Nepal, Myanmar, Malaysia, Laos, Indonesia, India, Cambodia, Brunei, Bhutan, Bangladesh, and Afghanistan.…”