【摘要】 盐碱地改良与综合利用对扩大耕地面积和保障国家粮食安全具有重要战略意义，盐碱地综合利用治理技术是挖掘盐碱地潜力的基础和重要手段。针对我国盐碱地类型多、改良利用方式差别大等特点，对当前盐碱地物理、化学、水利、微生物和植物改良技术进行了总结。提出了坚持分区综合治理，梯次提升盐碱耕地质量，有序推进盐碱荒地综合开发，构建轻度、中度、重度和盐碱地荒地多元化改良与综合利用技术路径。并建议以培肥土壤、提高产能、保护盐碱地生态环境为基本要求，从多水源高效安全利用、盐碱障碍绿色消减、盐碱耕地养分扩容增效和增碳稳碳等方面加强改良利用新技术研究。更多还原

【Abstract】 The improvement and comprehensive utilization of saline-alkali land are of strategic importance for expanding arable land and ensuring national food security. Comprehensive utilization and remediation technologies for saline-alkali soils serve as fundamental and crucial means for harnessing the potential of such lands. This study summarizes physical,chemical, hydraulic, microbial, and phytoremediation measures for various types of saline-alkali land reclamation, then proposes to adhere to regional division and comprehensive management, implement stepwise quality improvement of salinealkali croplands, promotes orderly integrative development of saline-alkali wasteland, and establishes diversified remediation and utilization pathways for mild, moderate, severe saline-alkali soils and barren lands. Furthermore, with the fundamental requirements of enhancing soil fertility, increasing productivity, and protecting the ecological environment of saline-alkali soils, research on improved utilization technologies should be strengthened in aspects such as high-efficiency and safe utilization of multiple water sources, green mitigation of saline-alkali constraints, nutrient expansion and efficiency enhancement of saline-alkali arable land, as well as carbon sequestration and stabilization.更多还原