This brief summarises the results from the interdisciplinary study conducted within the Aquaclimate project in Ca Mau and Bac Lieu provinces of the lower Mekong Delta looking at the impacts of climate change on small scale improved polyculture systems. The brief further provides guidelines for policy development to address the climate change impacts on small scale improved polyculture farming systems in Vietnam and how adaptation measures should be implemented in the region. The guidelines are based on recommendations from stakeholders including farmers.