Coupling effective cultivation patterns and suitable irrigation scheduling may provide insight for the development of water-saving agricultural systems. A 2-year field experiment was conducted to determine seasonal dynamics in root water uptake (RWU) of winter wheat under a new planting pattern of High-Low Seed Beds Cultivation (HLSC). Stable isotopes of δD and δ¹⁸O in different water sources were measured and the RWU of wheat was quantified by the MIXSIAR model. The proportions of RWU from the 0∼30 cm soil layer at different growth stages were significantly different for the wheat on the low beds, while it was not significantly different for the wheat on the high beds. Winter wheat took approximately 65 % of its required water from the 0∼60 cm soil throughout all growth stages. However, for an irrigation with a 90 mm quota, the experimental result showed that only 72 % of the irrigated water was finally stored in the soil layer of 0∼60 cm, which indicated nearly 30 % of the irrigated water infiltrated below 60 cm and will be less available. These results suggested that the designed irrigation wetting depth for winter wheat should be set as less than 60 cm under HLSC pattern.

有效的耕作模式与适当的灌溉计划相结合，可以为节水农业系统的发展提供见识。进行了为期2年的田间试验，以确定在高低种子床栽培（HLSC）的新种植模式下冬小麦根系水分吸收（RWU）的季节动态。的稳定同位素δ d和δ ¹⁸测量了不同水源中的O，并通过MIXSIAR模型对小麦的RWU进行了定量。低生育期小麦在0〜30cm土层不同生长阶段RWU的比例差异显着，而高生育期小麦的RWU比例无明显差异。在整个生长期，冬小麦从0〜60 cm的土壤中吸收了大约65％的水分。但是，对于90 mm的灌溉量，实验结果表明，只有72％的灌溉水最终存储在0〜60 cm的土壤层中，这表明将近30％的灌溉水渗透到60 cm以下的土壤中。将较少可用。这些结果表明，在HLSC模式下，冬小麦的设计灌溉湿润深度应设置为小于60 cm。