而当降水强度较大，以致使土壤水分大于田间持水量时，超过田间持水量部分的土壤水会很快流往较低的台阶。
However, when precipitation rate is large enough and soil water goes beyond the field capacity, the excessive soil water will flow laterally to the lower levels through noncapillary pores.
当过量的水从饱和土壤中排出后，余下的水量被称为田间持水量。
The amount of water that remains after the excess has drained away from the saturated soil is known as the field capacity.
结合不同处理下嘎拉幼苗生长特征可知，嘎拉幼苗良好生长的土壤水分条件应不低于田间持水量的60%。
After analyzing the growth characteristics of the seedling, it is found that the seedlings enjoyed growing under conditions of water content of soil was not lower than 60% of field capacity.
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