Spatial-temporal characteristics and obstacle factors of coupling coordination between agricultural water resources security and food security in China
Based on the provincial panel data from 2008 to 2022,the CRITIC weight,coupling coordination degree,Moran index and obstacle degree model were used to analyze the agricultural water resources security and food security of 31 provinces in China.The re-sults showed that the level of agricultural water resources security was high and the wave was large.The overall level of food security was not high,with a large increase in 2008-2016 and a small increase in 2017-2022,both showing an upward trend.The spatial pattern was not balanced.The agricultural water resources security presented the spatial characteristics of the eastern and central re-gions>the whole country>the western and northeast regions,and the food security presented the overall situation of northeast>cen-tral region>eastern region>the whole country>western region.Agricultural water resources security and food security were generally at a high level of coupling.The coordination level of agricultural water resources security and food security in each province was rising steadily,but the development of coupling level was not balanced,showing the highest in the central region,close to the eastern re-gion,northeastern and the whole country,and the lowest in the western region.There was a significant positive spatial correlation be-tween the coupling coordination degree of agricultural water resources security and food security in China.Most provinces were distrib-uted in the high-high and low-low quadrants,and the coupling coordination degree of most provinces showed positive spatial correla-tion characteristics.The agricultural water resources security and food security in different regions were limited by the differences in lo-cal conditions.The total industrial water consumption and per capita water resources were the main common obstacles to agricultural water resources security.Road density,sown area of grain crops and freight carrying capacity were the main common obstacles to food security.
agricultural water resources securityfood securitycoupling coordinationspace-time patternobstacle factor
NETL
NSTL
万方数据
