天津滨海地区盐碱地改良现状综述及展望

盐碱地改良对于现阶段我国人口增长，耕地减少的情况具有重要意义。作者以天津滨海地区盐碱地为例，通过对其进行生态分析，阐明了现阶段盐碱地改良的制约因素，综述了用于盐碱地改良的传统方法，及废弃物资源化、应用快速改良肥、培肥土壤等改良新工艺，并对这些技术做了比较与分析，建议加强盐碱地灌溉管理及咸水灌溉方面和高效盐碱地改良剂方面的研究，建立盐碱地水盐预报、监测和评价系统一体化，按生态位引种耐盐经济植物，综合治理改良滨海盐碱土，旨在建立天津滨海地区可持续的盐碱地综合治理规划。

Review and Prospect of Improvement Present Situation on Coastal Saline-alkali Area in Tianjin

Saline-alkali soil improvement is of great significance at this stage of China＇s population growth and reduction of arable land. Saline-alkali soil in coastal area of Tianjin selected in this paper as an example, through analyzing its ecological indicators, the paper clarified constraints of saline-alkali soil improvement and summarized the traditional methods for improving saline-alkali soil and waste resource recovery, application of rapid improvement of fertilizer, soil fertility such as new improvement techniques. The paper recommended the strengthening of the study of saline-alkali soil irrigation management, salt water irrigation and efficient sa？ line-alkali soil improver and the integrating of the establishment of saline-alkali soil water and salt forecasting, monitoring and evaluation and the cultivation of economic salt-tolerant plants according to ecological niche to improve the comprehensive management of coastal saline-alkali soil. The study in this paper was aimed at es？ tablishing saline-alkali soil in coastal area of Tianjin comprehensive management plans for sustainable.