Characteristics of Loess Magnetic Susceptibility and Its Influencing Factors analysis in Hebei Country

[摘要] Taking the loess profile of Hebei countryside area as the research object, the magnetic susceptibility, particle size, SOC and chroma were measured respectively. The following conclusions are drawn from the analysis of the above indicators: Xhfvalue is between 20.56×10-8m3kg-1and 107.81×10-8m3kg-1, Xfdvalue is between 0.31% and 8.74%. The content of silt (4 ∼ 63μm) is the largest in the particle size composition, followed by the clay content (63μm) is the least. The SOC content of the whole profile was less, with an average of 8.69 g / kg. Among the chroma values, a∗ is between 6.65 and 10.3, L∗ is between 43.34 and 63.79, and b∗ is between 15.66 and 22.58. The correlation analysis showed that the correlation between grain size and Xhfwas not significant (P>0.05), but has a significant correlation with Xfd(Phfand chromaticity (Pfd(P>0.05).

[发布机构] Key Laboratory of Qinghai Province Physical Geography and Environmental Process, Qinghai Normal University, XiNing; 810008, China^1;Environmental Geological Prospecting Bureau of Qinghai Province, XiNing; 810000, China^2

[效力级别] 生态环境科学

[关键词] Chroma values;Clay content;Correlation analysis;Influencing factors analysis;Particle size composition;Positive correlations;Research object;Sand content