[1]YI Yang,XIN Zhong-bao,QIN Yun-bin,et al.Study on Physical Characteristics of Soil Water in Different Land Uses in Loess Hilly Region[J].Research of Soil and Water Conservation,2013,20(05):45-49,56.
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Study on Physical Characteristics of Soil Water in Different Land Uses in Loess Hilly Region
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 05
Page number:
45-49,56
Column:
Public date:
2013-10-28
- Title:
- Study on Physical Characteristics of Soil Water in Different Land Uses in Loess Hilly Region
- Keywords:
- Loess Plateau; land uses; physical characteristics of soil water; saturated hydraulic conductivity
- CLC:
- S152.7;S151.9+2
- DOI:
- -
- Abstract:
- This paper selected six kinds of land uses (woodland, farmland, orchards, abandoned land, grass, road) in typical watershed of the third sub-region on the Loess Plateau to make a comparative study on the physical properties of surface soil moisture. The results demonstrated that the levels of soil moisture in woodland, farmland and abandoned land were significantly greater than those in the orchard and grassland, and the saturation moisture capacities of farmland and orchard were significantly greater than that in the grassland. Physical factors of soil moisture under different land use types were basic coordination. The coefficient of variation was the moderate variability. It indicated physical properties of the surface soil moisture were uniform in the horizontal direction. The average saturated hydraulic conductivity and soil water content ware 0.84 mm/min and 19.18%, respectively. The average soil bulk density was 1.34 g/cm3. Capillary porosity in all of the land use types was below 10%, indicating the surface soil aeration performance of permeability was poor. Although a large area of new terracing and development of economic forest improved topsoil moisture physical properties in recent years, the overall performance was still poor. It will need to further improve the soil environment.
- References:
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