河海大学学报（自然科学版）2025，Vol.53Issue(6)：1-11,11.DOI:10.3876/j.issn.1000-1980.2025.06.001
广东省城市尺度水、能源、粮食足迹核算及效率评估
Urban water-energy-food footprint accounting and efficiency assessment in Guangdong Province
摘要
Abstract
To conduct a comprehensive evaluation of resource utilization efficiency,an efficiency assessment framework that combined multi-regional input-output analysis and data envelopment analysis was proposed.This framework was employed to calculate the water,energy,and food footprints on the consumption side of cities in Guangdong Province.On this basis,input-output efficiency under the influence of inter-regional trade was assessed from the perspective of the water-energy-food system.The findings indicate that the cities'water,energy,and food footprints on the consumption side are predominantly influenced by inflows from regions outside the province,followed by local consumption footprints.Other cities within the province receive a relatively negligible proportion of trade-implied resources.The spatial distribution characteristics of the water-energy-food system efficiency and the water,energy,and food footprints on the consumption side converge,primarily exhibiting a decreasing trend from the The Pearl River Delta region to the exterior.By taking into account the impact of inter-regional trade on water,energy,and food consumption,the efficiency of most cities has been improved,and the overall efficiency of the region has increased.Among the cities,Shenzhen and Zhongshan have demonstrated optimal input-output allocation,while the remaining cities have exhibited varying degrees of input redundancy,with Guangzhou exhibiting the greatest potential for resource savings.关键词
水-能源-粮食系统/多区域投入产出分析/数据包络分析/环境足迹/投入产出效率Key words
water-energy-food system/multi-regional input-output analysis/data envelopment analysis/environmental footprint/input-output efficiency分类
建筑与水利引用本文复制引用
谭倩,毛文俊..广东省城市尺度水、能源、粮食足迹核算及效率评估[J].河海大学学报（自然科学版）,2025,53(6):1-11,11.基金项目
国家自然科学基金杰出青年科学基金项目(52125902) （52125902）
