| Soil physicochemical properties of the Head stream Area of Karayulgun River on the southern slope in Mount Tuomuer |
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| DOI：10.7606/j.issn.1000-7601.2018.01.37 |
| Key Words: soil properties spatial characteristics Karayulgun river valley Tomur National Nature Reserve |
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| Abstract: |
| This study employed field investigation, sample collection and laboratory analysis to investigate the spatial characteristics of the soil characters in Karayulgun River Valley of Tomur National Nature Reserve. The results shows that: ① The average proportion of typical soil particle size <0.01 mm in brown soil, mountain brown soil and mountain chestnut soil in the study area were 23.75%, 49.83%, 60.95%, respectively. The average ratio of the particle size of <0.001 mm were 12.50%, 18.79%, 22.39%; As the altitude increases, the ratio of soil particle size in the southern slope of mount Tomur was constantly growing. There was a significant positive correlation between soil moisture and altitude. ② Cl-, SO2-4, Ma2+ and K++Na+ had a higher coefficient of variation above 1.0, indicating a strong variation. ③ In addition to total P, the organic matter, total N, and the C/N belong to medium variation. The organic matter has the highest coefficient of variation of 0.54. The coefficient of variation of whole P was only 0.09, being the weakest variable. Correlation analysis showed that the altitude, organic matter, total N, total P, C/N of each index content had significant positive correlation, but were negatively correlated with pH. |
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