Soil Particle Size Composition and Differences of Different Grassland Types in the Southern Slope of Qilian Mountain

2018 International Conference of Green Buildings and Environmental Management

土木建筑工程;生态环境科学

Yu, Min^1,2 ; Cao, Guangchao^1 ; Cao, Shengkui^1,2 ; Yuan, Jie^1,2 ; Qu, Congcong^1,2 ; Chen, Zhirong^1,2 ; Diao, Erlong^1,2 ; Chen, Zhen^1,2

Key Laboratory of Physical Geography and Environmental Process in Qinghai Province, Xining

810008, China^1

College of Geographical Science, Qinghai Normal University, Xining

810008, China^2

关键词: Coefficient of variation;    Grassland types;    Qilian mountains;    Qinghai Province;    Research results;    Silt contents;    Soil particle size;    Soil textures;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/186/6/012040/pdf
DOI  :  10.1088/1755-1315/186/6/012040

来源: IOP

【 摘 要 】

In this paper, we collected soil samples of different grassland types in the southern slope of Qilian Mountain in Qinghai province and analyzed the soil particle size composition and differences. The research result shows that: The soil particle size composition of different grassland types is obviously different, and the soil texture is in silt-sandy soil level. The soil texture from fine to coarse of each grassland is: temperate steppe> alpine meadow> alpine steppe> degenerated grassland> swamp meadow; the overall coefficient of variation(CV) of soil particle size content in different grassland types shows a large difference, the variation of soil silt content in each grassland type was small, while the content of soil sand and clay content fluctuate greatly; the variation degree of soil sand content in each grassland type is moderately variable, but the content of silt and clay is moderately weak, the change rule is sand> clay> silt.