Applying of soft rock to control Mu Us sandland: A case study of Yulin City

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Cheng, Jie^1^2 ; Wang, Huanyuan^2

Xi'An University of Technology, Xi'an, China^1

Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Xi'an, China^2

关键词: Composite soils;    Cultivated lands;    Ecological environments;    Grain roughness;    Indoor experiment;    Mu Us sandland;    Particle size composition;    Water retention;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/2/022141/pdf
DOI  :  10.1088/1755-1315/300/2/022141

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

In order to alleviate the contradiction between people and land, improve the quality of cultivated land and the ecological environment of the land, this paper studied the sand-fixing characteristics of soft rock by indoor experiments and promoted the field. The results showed that the complementarity of the soft rock and sand in the particle size composition, the two had mixed with the composite soil to form a good particle size distribution, increased the grain roughness, and had a sand-fixing effect, improved the porosity of the sand at the same time. The increasing of the content of clay increased the water retention and water retention of the sand and reduced wind erosion. Based on this sand-fixing mechanism, the practical application of arsenic sand-fixing in Daji Khan Village, Yuyang District, Yulin City had been carried out by means of soil-body reconstruction project of soft rock and sand, water, road and forest supporting projects, and the control effect is remarkable.