Breakthrough: Direct Drip Irrigation for High-Sediment Yellow River Water
To break through resource bottlenecks, the fundamental solution lies in science and technology. As agriculture is a major water consumer, advancements in water-saving technologies are particularly critical.
"China's water resources are extremely unevenly distributed in space and time, and the contradiction between supply and demand is particularly prominent. The northern regions, which possess only 18%60%, Director of the National Key Laboratory of Efficient Utilization of Agricultural Water Resources at China Agricultural University.
Under conditions of severe water scarcity, ensuring national food security and an effective supply of agricultural products necessitates the implementation of agricultural water-saving measures to significantly improve water use efficiency and benefits. Agriculture accounts for 60% of China's total water consumption, representing the nation's greatest potential for water conservation.
To address the challenge where the high sediment content of Yellow River water easily clogs direct drip irrigation systems, the National Key Laboratory at China Agricultural University conducted mechanism research to develop anti-clogging drip irrigation technologies and product series. These efforts have facilitated the widespread application of drip irrigation in regions such as the .
"Through extensive scientific experimentation, we identified the specific causes of clogging-determining the respective contributions of physical, chemical, and biological factors. Based on these findings, we utilized advanced flow measurement technology to monitor how water moves through drip emitters and identify where clogging is most likely to occur. Under these conditions, we developed anti-clogging technologies and products, solving the global challenge of direct drip irrigation using Yellow River water," Kang Shaozhong told reporters.
Regarding the seasonal water shortages faced by southern China, Kang believes that water conservation must be promoted through engineering and management measures.
, adopted subsurface drip irrigation to achieve integrated water and fertilizer management. By providing the appropriate amount of water and nutrients during critical crop growth stages, they have effectively improved the quality of agricultural products like citrus fruits."
0.53 to 0.581.58 kg to over 1.8 kg.
60 million mu300 million mu30 billion kg.