[1]ZHANG Chao,CHEN Xuegang,QUAN Xiaoyan,et al.Characteristics of Soil Particle Size in the Urumqi City[J].Research of Soil and Water Conservation,2015,22(02):213-218.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
22
Number of periods:
2015 02
Page number:
213-218
Column:
Public date:
2015-04-28
- Title:
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Characteristics of Soil Particle Size in the Urumqi City
- Author(s):
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ZHANG Chao1,2, CHEN Xuegang1,2, QUAN Xiaoyan1,2, DONG Yu1,2, WEI Jiang3
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1. Xinjiang Laboratory of Lake Environmental Resources in Arid Zone, Urumqi, Xinjiang 830054, China;
2. School of Geography Science and Tourism, Xinjiang Normal University, Urumqi, Xinjiang 830054, China;
3. School of Resources and Environment Science, Xinjiang University, Urumqi, Xinjiang 830046, China
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- Keywords:
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particle size; urban soil; Urumqi City
- CLC:
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S152.3
- DOI:
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- Abstract:
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The particle size distribution is one of the important physical properties of the soil. It is of great significance to improve soil anti-wind erosion, water retention and nutrients, etc., for oasis city. In this paper, forty-five soil samples were collected from different regions of Urumqi and analyzed by laser diffraction particle size analyzer and scanning electron microscope to exhibit their soil particle size features. The results are as follows. 1) The particles of topsoil in the study area are composed of a lower sand content and higher silt content. There is no significant difference of contents among the same content levels of different sampling regions. 2) The particles of the soil are fine and low sorting. The distribution is a type of nearly symmetric positive skewness and moderate narrow kurosis. Moreover, the mean particle size of the south of the city is higher than that of the north of the city. Sorting coefficient and the mean particle size present the similar trend and the samples are a type of positive skewness. The skewness shows a decreasing trend from the construction land in the north to the south and the majority of the sampling soil has a higher kurtosis values. 3) The curves of soil particle size frequency distribution present the normal unimodal and multimodal non-normal distributions. The curves of particle frequency distribution in agricultural lands show a single peak, indicating that the sediment is mainly caused by a component. However, the curves of construction land and unused land show the multiple peaks, indicating the existence of multiple components from different sources. In addition, the result of typical samples analyzed by the scanning electron microscope is similar and consistent with the distribution of content levels.