随着城市建设进程的加快,越来越多的耕地受到挤占和规划,如何确保全国1.2亿hm2耕地,如何确保国家粮食安全,已成为一个重要的社会问题。基于此,综述了盐碱地的概念、形成原因以及利用水利措施、农业措施、生物措施、化学措施等改良盐碱地的方法,并进行了深入细致的示范对比,或许对您有所启示。 With the acceleration of urban construction, more and more cultivated land has been squeezed out and planned. As to how to ensure 120 million hm2 of arable land in the country and how to ensure national food security, it has become an important social issue. Based on this, it is possible to summarize the concept of saline-alkali land, the reasons for its formation, and the methods of improving saline-alkali land using water conservancy measures, agricultural measures, biological measures and chemical measures, etc. and carry out in-depth and detailed demonstration and comparison.