干旱区生态环境知识资源中心

This paper presents research on the technological transition of soft sandstone from a single control object to a comprehensive resource utilization object and proposes a feasible resource utilization method for soft sandstone in the Mu Us Desert based on the Land Consolidation Project practice and experimental analysis. The research showed that remixing the soil with soft sandstone and sand was an effective measure to achieve soft sandstone resource utilization. This technology improved the adverse nature of the sand, so that it both retains water and nutrients, allowing the sand to become high-quality arable land and significantly improve crop yields. Further, the soft sandstone and complex soil have a significant effect on sand fixation. These research findings have already shown significant economic, social and ecological benefits in the pilot application in the land development and demonstration project at Dajihan village in Yuyang district, Yulin City, Shaanxi Province, where there has been a quality improvement of 2100 ha land and an new arable land increase of 1573.3 ha. Resource utilization soft sandstone has important theoretical and practical significance to soil erosion control and the comprehensive utilization of desertified land in this area.