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[1]HUI Bo,LI Peng,ZHANG Wei,et al.Distribution Charateristics of Soil Particles and Organic Carbon on Check-dam System in Wangmaogou Watershed[J].Research of Soil and Water Conservation,2015,22(04):1-5.

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Distribution Charateristics of Soil Particles and Organic Carbon on Check-dam System in Wangmaogou Watershed

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 22 Number of periods: 2015 04 Page number: 1-5 Column: Public date: 2015-08-28

Title:: Distribution Charateristics of Soil Particles and Organic Carbon on Check-dam System in Wangmaogou Watershed

Author(s):: HUI Bo^1,2, LI Peng¹, ZHANG Wei³, GAO Haidong¹, ZHAO Binhua¹, WANG Qi¹; 1. Key Laboratory of Northwest Water Resources, Environment and Ecology, Ministry of Education, Xi’an University of Technology, Xi’an 710048, China;
2. Suide Soil and Water Conservation Scientific Experimental Station, Water Conservancy Committee of Yellow River, Suide 718000, China;
3. Seedling Station of Xianyang, Xianyang, Shaanxi 712000, China

Keywords:: dam land; fractal dimension; soil texture coarsening degrees; soil organic carbon

CLC:: S157

DOI:: -

Abstract:: In this paper,in order to study distribution characteristics of soil particles and organic carbon in check-dam system in Wangmaogou watershed of hilly-gully Loess Plateau, we collected 47 soil profiles and 940 soil samples, analyzed the fractal dimension, coarsening, organic carbon and the relationship of particle size composition. The results indicated that:(1) the predominant soil particle size was found to be silt in studies area, followed by sand and clay; (2) the soil particle fractal dimension of dam land in Wangmaogou watershed ranged from 2.674 to 2.829. The changes in the vertical profile were very slight, the fractal dimensions of particle size distribution in the front, the middle and the end of the dam were 2.803 3,2.783 6,2.795 8, respectively; (3) the soil texture coarsening degrees of dam land in Wangmaogou watershed were between 0.27 and 0.58 with the mean of 0.44, in the front of the dam (0.40) < after the dam (0.45) < in the dam(0.46); (4) the soil particle of dam land had an extraordinary positive correlation with the fractal dimension of soil particle in 0.05~0.002 mm and < 0.002 mm, and had an extraordinary negative correlation with the fractal dimension of soil particle in 2.0~0.05 mm; soil organic carbon of dam land had a positive correlation with the contents of silt and clay, and had a negative correlation with the contents of fine sand and very fine sand.

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