秸秆还田对盐碱地改良的研究进展

Research progress of the straw returning on soil improvement in saline-alkali land

盐碱地是我国重要的后备耕地资源,对盐碱化耕地的改良利用对于满足我国人口粮食需求和农业的可持续发展具有重要现实意义。秸秆还田可改善土壤结构和肥力、提高耕地质量、降低耕层土壤盐分累积,是改良盐碱地的有效措施。文章综述了我国秸秆还田技术的利用现状,介绍了秸秆还田技术改良盐碱地土壤的原理及其应用,并从土壤物理性质、化学性质、生物学特性及作物产量等方面对盐碱地的改良效果进行了阐述,对秸秆还田技术在盐碱地上的应用前景进行了展望。

Saline-alkali land is an important reserve cultivated land resource in China.The development and utilization of saline-alkali cultivated land has important practical significance for meeting population and food needs of as well as agriculture long-term sustainablility.Straw returning can improve soil structure and fertility,improve the quality of cultivated land,and reduce the salt accumulation in topsoil,making it an effective measure for improving saline-alkali soil.This paper summarized the current state of domestic straw returning technology,explained the principle and application of straw returning technology to improve saline-alkali soil,and discussed the effects of improvement on saline-alkali soil from the aspects of soil physical properties,chemical properties,biological characteristics and crop yield.The impact of improved saline-alkali straw returning technology application foreground was prospected.