水稻灌区面源污染治理研究进展OA

The overlap of the rice growing season with periods of rainfall and heat leads to a high frequency of irrigation and drainage,which causes significant nitrogen and phosphorus losses from fertilizers due to surface runoff.This is a major source of agricultural non-point source pollution in rice cultivation areas.By systematically analyzing the latest research developments on efficient water-saving irrigation systems for rice,the mechanisms of pollutant migration and transformation in farmland drainage,and the collaborative regulation techniques for drainage pollution in irrigation areas,several key scientific issues that urgently need to be addressed in the study of non-point source pollution control in rice cultivation areas have been identified,considerating of national and disciplinary development needs.These include the mechanisms of drainage pollution,simulation of water resource allocation in irrigation areas,and collaborative regulation of non-point source water pollution in irrigation ar-eas,which can provide insights for the prevention and control of agricultural non-point source pollution in China.