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土壤的田间持水量是土壤的毛管力所能保持住的最大毛管悬着水,又称最小持水量,总持水量等。田间持水量反映了土壤最大的保水能力。土壤这个“水库”的库容,供应植物生长所需水的给源是否丰富,在一定程度上关系到土壤的抗旱保墒能力。因此,农业生产与科学研究均要涉及土壤的田间持水量,水利部门进行灌区的规划设计,也用田间持水量做
Soil field water holding capacity of the soil can be maintained by the largest capillary hanging water, also known as the minimum water holding capacity, the total water holding capacity. Field water capacity reflects the maximum soil water retention capacity. Soil, the reservoir of this “reservoir”, the supply of water for plant growth is abundant, to a certain extent, related to soil drought resistance and soil moisture capacity. Therefore, agricultural production and scientific research should involve the field of soil water holding capacity, water conservancy departments for irrigation planning and design, but also to do with field water