Fuzzy composite risk assessment of water-energy-food-carbon nexus in the dispark pumped irrigation system

•Analysis the fuzzy composite risk in dispark water-energy-food-carbon (WEFC) nexus.•Composite risk index (CRI) was constructed based on footprint and virtual water theories.•Spatial heterogeneity of CRI was caused by the inconsistent resources endowments.•Economic is the main driving factor of the CRI in the WEFC nexus of irrigation system.