大规模连片机修梯田是坡改梯项目的主要工程措施,在提高梯田机械化的同时也产生了大量闲置并蕴藏巨大生产潜力的埂坎土地资源。通渭县经过多年的梯田建设实践,将紫花苜蓿作为护埂植物,不仅有利于保水保土,保证新修梯田埂坎的稳定性,而且有利于优化山区土地利用结构、发展舍饲养殖,具有良好的经济、生态和社会效益。 Large-scale contiguous machine repair terraces is a major engineering measure for slope-to-slope project. While improving the mechanized terraces, a great deal of land resources of idle land with huge production potentials are also produced. After many years of terraced construction practice in Tongwei County, alfalfa as a caretaking plant, not only conducive to water and soil conservation, to ensure the stability of the newly repaired terraces, but also conducive to optimizing the land use structure in mountainous areas, the development of feeding culture, with Good economic, ecological and social benefits.