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莱州湾地区是我国海水侵染地下水危害较重的典型区域．笔者试从海水入侵对农业生产、工业生产及居民生活用水等多方面造成危害的特点出发，分别对海水入侵使农业生产条件遭受破坏，农作物产量降低，工业生产环境受损，工业产值及效益下滑，以及居民生活用水供水条件的恶化等进行分项灾情评估．在此基础上，结合区域经济发展状况确定各分项的权重，然后以加权分值确定出综合评估灾情等级的方法，既体现了海水入侵对当前经济造成的损失，又体现了因环境条件恶化产生的长远影响．它可避免单纯以目前的经济损失评估灾情所产生的某些弊端．
Laizhou Bay area is a typical area where seawater is more harmful to groundwater in China. Based on the characteristics of seawater intrusion caused by agricultural invasion, industrial production and domestic water supply, the authors try to disrupt the agricultural production conditions through seawater intrusion respectively, reduce the output of crops, damage industrial production environment, decrease the industrial output value and benefit , As well as the deterioration of residential water supply conditions such as sub-item disaster assessment. On this basis, combining the regional economic development to determine the weight of each sub-item, and then using the weighted score to determine the method of comprehensive assessment of the disaster level, not only reflects the loss caused by seawater intrusion on the current economy, but also reflects the deterioration of environmental conditions Long-term impact. It can avoid some of the drawbacks of the disaster assessment based on the current economic losses alone.