Project leader: Han Jichang
Project source: Public welfare industry scientific research project of the Ministry of Land and Resources
Project funding: 6.35 million yuan
Research content:
1) Study on the ecological effects of sand-fixation in the Mu Us Sandy Land and sandstone composite soil;
2) Research on water storage performance and water resource support capacity evaluation of arsenic sandstone and sand composite soil;
3) Research on the stability and sustainable utilization of arsenic sandstone and sand composite soil;
4) Impact analysis and engineering demonstration of comprehensive development of Mu Us Sandy Land
Results obtained:
Analysis of the microstructure and sand fixation mechanism of arsenic sandstone and sand composite soil,The sand-fixing effect of composite soil is clarified;Proposed a sustainable utilization plan of composite soil guided by sand fixation;Proven the water storage performance of composite soil;Developed a water-saving irrigation system for typical crops,Constructed a water-saving technology system for agricultural development and utilization in Mu Us Sandy Land;Established a sandy agricultural water dafabet.com mobileresources carrying capacity model based on water resources constraints;Explored the stability of arsenic sandstone and sand composite soil,Proposed corresponding control technology;Developed a water and fertilizer management system for typical crops on compound soil;Compiled the "Technical Specifications for Compound Soil Formation Engineering of Arsenic Sandstone and Sand" (DB6-T 1088-2017);Developed the Mu Us Sandy Land Development Decision Support System。The results have great practical significance for the ecological improvement of sandy land and the utilization of arsenic sandstone resources。