Characteristics of Soil Texture Changes of Soft Rock and Sand Compound Soil with Different Planting Years

3rd International Symposium on Resource Exploration and Environmental Science

生态环境科学

Zhang, Haiou^1 ; Zhang, Lu^1 ; Xu, Yan^1 ; Wang, Zhao^1 ; Lu, Yangjie^1

Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Institute of Land Engineering and Technology, Shaanxi Provincial Land Engineering Construction Group Co., Ltd., Key Laboratory of Degraded and Unused Land Consolidation Engineering, Ministry of Land and Resources, Shaanxi Provincial Land Consolidation Engineering Technology Research Center, Xi'an

710075, China^1

关键词: Laser particle size analyzer;    Mixed soils;    Particle composition;    Soft rocks;    Soil textures;    Stable state;    Variation characteristics;    Volume mixing ratios;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/300/2/022122/pdf
DOI  :  10.1088/1755-1315/300/2/022122

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

As a new type of compound soil of soft rock and sand in Mu Us Sandy Land, Whether the texture state can maintain stable development is the primary concern. In this paper, the Mastersizer 2000 laser particle size analyzer method was used to analyze the variation characteristics of particle composition of mixed soil with different volume mixing ratios (1:1, 1:2, 1:5) in field tests from 2010 to 2016.The results show: With the increase of planting years, the content of clay and silt increases, the content of sand decreases, and the texture of the compound soilpresents a benign development trend.with the ratio of 1:1, 1:2 and 1:5 of soft rock and sand compound soil, and the C/F value of the compound soil tends to decrease, and the tillage layer tends to refine, which improves the stability of the compound soil.Therefore, the compounded soil can maintain a good and stable state of development during the utilization period, and it does not need to be compounded after many years.