土壤水资源高效利用的若干生理生态问题

Several Physiological Ecology Problems in the Efficient Utilization of Soil Water Resources

研究土壤水资源的特征和作物耗水与土壤水的相互关系,可以有效地指导在农业用水中增加土壤水的用水量、减少灌溉水量、提高水分利用效率,从而达到农业节水的目的。介绍了土壤水资源量的计算、土壤水分的动态规律、土壤水分的有效性和作物的需水耗水规律等农业节水中涉及的利用土壤水资源研究的若干生理生态方面内容。

To study the characteristics of soil water resources and the relationship between crop water consumption and soil water can effectively instruct increasing soil water amount,lessen irrigation amount,heighten water use efficiency in agricultural water use,and then save water in agriculture.Several aspects about soil water resource use in agricultural water-saving were introduced as follows：the calculation of soil water resource quantity,dynamic laws of soil moisture,effectiveness of soil water and water requirement and consumption laws of crops.