Abstract:

Water scarcity and substantial carbon emissions in farmlands are critical factors restricting the high-quality development of agriculture in China. How to improve water use efficiency and reduce carbon emissions in agriculture production while ensuring output is the focus of current research. In order to understand the source and generation mechanism of carbon emissions in farmland and the impact mechanism of drip irrigation technology on carbon emissions, this paper reviewed the current research status of drip irrigation affecting carbon emissions in farmland at home and abroad and summarized the main achievements, existing problems and future developments trends of current research. Analysis results showed that tillage and residue dispose, the production and use of agricultural materials, and farmland management were the three main sources of carbon emissions. Meanwhile, it was found that carbon emissions in farmland could be affected by drip irrigation through reducing the energies consumption in agricultural irrigation, improving utilization efficiency of resources, and improving soil environment. The research results are helpful to improve the technical system of drip irrigation systems, promote farmland water conservation and emission reduction, and provide a theoretical basis for achieving ‘dual carbon’ goals in China.

Key words: drip irrigation, carbon emissions in farmland, water conservation, fertilizer input, emissions reduction, soil environment