珠江三角洲稻田降低地下水位,可以促进水稻增产。本文仅就地下水进入排水渠的过程,以及农作物对地下水位的要求,作一探讨,供有关方面参考。田间地下水进入排水渠比地面水进入排水渠复杂得多。要想规设好排除地下水的渠道,就必须探讨地下水进入排水渠的过程及其影响因素。只有弄清楚这些问题,才有可能根据具体条件,通 Pearl River Delta rice fields to reduce groundwater levels, can promote rice yield. This article only on the groundwater into the drainage process, as well as the requirements of crops on the groundwater table for a discussion for the relevant reference. Field groundwater into drains is much more complex than surface water into drains. In order to lay a good foundation for excluding groundwater, it is necessary to explore the process of groundwater entering the drainage canal and its influencing factors. Only by clarifying these problems is it possible under certain conditions