Optimizing irrigation in arid irrigated farmlands based on soil water movement processes: Knowledge from water isotope data

• In oasis farmland, 38% of irrigation water is lost to seepage and evaporation. • Oasis farmland evapotranspiration partitioning shows strong hourly variation. • Variations in irrigation time lead to deviations in the hourly-scale changes of T/ET. Understanding soil water movement processes in cultivated land is crucial for developing sound irrigation strategies. However, current knowledge regarding the fate of water after irrigation remains incomplete. Therefore, this study was conducted in a maize field in Datan Township, Minqin County, where precipitation, irrigation water, soil, and maize stalk samples were collected during the growing seasons of 2018 and 2019 and subjected to stable hydrogen and oxygen…

• NN
  Northwest Normal University

  Awards: NWNU-LZKX-202303, NWNU-LKZD-202302
• NN
  National Natural Science Foundation of China

  Awards: 41971036, 42371040
• CA
  Chinese Academy of Sciences
• NS
  Natural Science Foundation of Gansu Province

  Award: 23JRRA698
• FF
  Foundation for Innovation Groups of Basic Research in Gansu Province

  Award: 22JR5RA129