Abstract: Rice-crab coculture is a mature model of integrated aquaculture system in China. Rice-crab coculture can produce higher economic value and also has a significant impact on the field ecological environment and rice growth. However, the underlying mechanisms are not fully understood. Here, we reviewed the effects of rice-crab coculture on field gas emission, nutrient cycling, and ecological benefit. We further focused on rice variety selection, water and fertilizer management, rice yield and quality. The following prospects should be paid more attention in future studies: integrative ecological environment; the combination of large-scale field experiment and small-scale simulation experiment; mechanism and the overall effect of ricecrab coculture; long-term field research. Future research should focus on synergy, quality and efficiency, for better understanding the effects of ricecrab coculture on ecological environment and rice growth.

Key words: driving force, Pan-Pearl River basin, land use, Guangdong-Hong Kong-Marco Greater Bay Area, spatiotemporal evolution characteristics, rice-crab coculture, ecological environment, rice growth.