江苏滨海盐土脱盐技术及应用前景

沿海滩涂是江苏省主要的土地后备资源,滨海盐土的开发、利用和保护已得到各级政府的高度重视.基于盐平衡指数的概念,归纳出滨海盐土的三大脱盐技术,即雨水/微咸水淋洗脱盐技术、阻止毛管水上升减少根区聚盐技术和生物脱盐技术.在具体的滩涂脱盐改土实践中江苏省通过这3种技术的集成,已形成各具特色的滨海滩涂脱盐改土技术体系,包括养鱼改...

Coastal Saline Soil in Jiangsu: Desalting Technologies and Application Prospect

Coastal beach is the main land reserve resource in Jiangsu Province, and the exploitation, utilization and protection of coastal saline soil have been highlighted by governments at all levels. In this paper, three major desalination technologies for coastal saline soil based on the concept of salt balance index were summarized, including leaching by rainwater and brackish water, reducing salt accumulation in root zone by preventing capillary rise of groundwater, and biological desalting technology. In the practice of beach desalting and soil improvement, Jiangsu Province has formed its own technical system of desalination of coastal beach with the integration of the three technologies, including amelioration of saline soil by fish farming in mudflat pond, paddy cultivation by irrigation of brackish water, dry farming with straw mulching, and afforestation under straw mulching. It is expected that these technologies will provide effective technical support for the development and utilization of coastal tidal flat resources in Jiangsu Province.