Probing into ideas for national water network construction based on food security guarantee
Li Yuanyuan
Li Yunling
Long Xiaoxu
He Qifeng
Abstract：Strengthening the construction of rural water infrastructures and enhancing the capabilities of irrigation and water supply for grain production are fundamental tasks to secure national food security.Safeguarding irrigation and water supply is a critical component of national water network construction.The current irrigation rate of arable land in China stands at 55％,with uneven irrigation development across regions.Nearly half of the arable land lacks proper irrigation conditions,especially in areas with annual precipitation below 500 mm,which covers approximately 320 million mu,leading to insufficient capacity to ensure stable and high grain yields.By considering the spatial pattern of"water-soil-grain"in China,a systematic analysis of the irrigation development needs and potential in Northeast China,North China,the middle and lower reaches of the Yangtze River,Southeast China,Southwest China,and Northwest China is presented.The national water network's role in supporting irrigation is discussed from three aspects:strengthening irrigation water supply security capacity,improving irrigation and drainage systems,and enhancing flood and drought disaster prevention capabilities.Policy recommendations are proposed to safeguard irrigation development,including broadening investment channels,advancing agricultural water pricing reform,and implementing policies for irrigation farmland compensation.
Keywords：food securitynational water networkirrigationwater source guaranteepolicy suggestions
Publication Date：2024-09-12
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：6( 42-47 )