Deep water floating rice (DW-FR) production has declined substantially across Asia, despite being a source of nutritious, culturally-important and flood-adapted food. Low perceived commercial value, and the desire for increased rice exports, has led to intensified farming of high yielding variety (HYV) rice. We used a commodity-value-chain analysis to investigate the values of DW-FR in Cambodia, Vietnam and Myanmar. Poor communication and value-transference along the supply chain lead to farmers receiving poor returns for DW-FR despite its high ecological, cultural and commercial value in downstream markets. With minor adjustments, DW-FR systems could provide more sustainable livelihoods for farmers and greater food system security. For better returns we suggest implementation of improvements to breeding, farming, transport, processing, better access to finance, improved communication and development of other rice products.

尽管亚洲深水浮游稻（DW-FR）是一种营养丰富，具有重要文化意义和适应洪水的食物，但其产量已大幅下降。较低的商业价值以及对增加稻米出口的渴望，导致了高产水稻（HYV）稻米集约化的发展。我们使用商品价值链分析来调查DW-FR在柬埔寨，越南和缅甸的价值。尽管DW-FR在下游市场具有很高的生态，文化和商业价值，但由于供应链上的沟通和价值转移不当，导致农民获得的DW-FR的回报很低。通过稍作调整，DW-FR系统可以为农民提供更多可持续的生计，并提高粮食系统的安全性。为了获得更好的回报，我们建议对育种，养殖，运输，加工，