【摘要】 土壤盐碱化已成为世界上重要的环境问题之一;同时,盐碱土也是一种重要的后备土壤资源。松嫩平原西部是世界上三大片苏打盐碱地集中分布地区之一。通过回顾松嫩平原西部盐碱土旱作改良发展历程,分析了旱作改良的主要措施与效果及存在的问题,并结合目前国内外相关研究的前沿和热点问题,提出了松嫩平原西部盐碱土旱作改良的展望。建议重点进行旱作改良后的盐渍化动态监测、评估与预警,生物与盐分互作机制,盐碱土障碍治理、修复与农业资源高效利用的优化管理和生态环境效应等方面的研究。更多还原

【Abstract】 Soil salinization becomes one of the serious environmental issues in the world. Saline-alkali soil is one kind of the important agricultural reserve resources. Western Songnen plain is one of three concentration distribution regions of soda saline-alkaline land in the world. This paper reviewed the development,the main measures,the effect and questions of the improvement for saline-alkali soils by dry farming measures,and proposed their prospects consindering the frontiers and hot spots of relevant researches in western Songnen plain. The paper also suggested that emphasis should be laid on topics of monitor,assessment and forecast of prediction of soil salinization,mechanism of the interaction between biology and soil salt,optimal management and remediation of soil salinity and the high efficient utilization for water,soil,biology and agricultural resources,eco-environmental impacts of improvement by dry farming measures,etc.更多还原