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水容是继水流阻力之后反映土壤—植物系统中水分动力学性质的又一重要水力学参数。通过生长箱内的模拟实验进一步揭示了土壤—植物系统的水容特性，分析了系统中的水容在植物抗御高温低湿型热害中的作用，探讨了用水容作为指标来评价生长在不同水分条件下的冬小麦对大气干旱的适应能力，为水容的实际应用提供了新的启示。
Water capacity is another important hydraulic parameter that reflects the hydrodynamic properties of the soil-plant system after water flow resistance. Through the simulating experiments in the growth chamber, the water-capacity characteristics of the soil-plant system are further revealed. The role of the water capacity in the plant to resist the heat damage of high temperature and low humidity type is analyzed. The water capacity is used as an index to evaluate the water- The adaptability of winter wheat to atmospheric drought under the conditions provided a new inspiration for the practical application of water capacity.