在滨海淤泥质滩涂生态系统中采取以植物绿化为主的生态恢复工程，由于缺少土壤改造的适宜的资源，常成为工程正常实施的主要困难．通常情况下采用的从周边地区购买农田种植土的方法，不仅破坏采土区的生态环境，而且造价高．天津经济开发区通过对其周边环境中大量存在的海湾泥、碱渣和粉煤灰等固体废弃物资源的研究发现，当它们单独存在时，都不是　合适的土壤资源，但当以适当比例配合后，其混合物却更适合植物的生长．用它作为土壤资　源，将不仅能解决大量固体废弃物对滨海生态系统的污染问题，而且还可以减少对周边地区　生态环境的破坏，降低生产成本．海湾泥与碱渣和粉煤灰的最佳推荐比例为３∶１． In the coastal muddy mudflat ecosystems to take the green plant-based ecological restoration project, due to the lack of appropriate resources for soil improvement, often become the main difficulties in the normal implementation of the project. Generally, the method of purchasing farmland for planting soil from the surrounding area not only damages the ecological environment of the mining area, but also has high cost. Tianjin Economic Development Zone, through its extensive study on the solid waste resources such as gulf, caustic soda and fly ash present in the surrounding environment, found that when they existed alone, they were not suitable soil resources, but when they were mixed in the proper proportion After its mixture is more suitable for plant growth. Using it as a soil resource will not only solve the problem of pollution of coastal ecosystems by a large amount of solid wastes, but also reduce the damage to the ecological environment in the surrounding areas and reduce the production costs. The best recommended ratio of bay mud to soda ash and fly ash is 3: 1.