海涂土壤存在着盐分高、养分贫瘠两大障碍因子，改良需要较长的时间和大量的资金投入，而生产经营希望较高的经济效益和较短的投资回收期。因此，盐土改良这一中长期目标与近期经济效益的矛盾一直困扰着沿海滩涂的开发。过去对滩涂开发的科研工作着重于改良技术，而对改良过程 Tidal flat soils have two factors of high salt content and nutrient infertility. The improvement requires a long time and a large amount of capital investment, and the production and management hope higher economic benefits and shorter payback period. Therefore, the contradiction between the long-term goal of salt improvement and the recent economic benefits has plagued the development of coastal beach. In the past, research work on tidal flat development focused on improving technology, but on the process of improvement