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[1]YANG Yahui,LÜ,Du,et al.Impacts of Vegetation Types on Soil Physicochemical Properties[J].Research of Soil and Water Conservation,2017,24(06):238-242,249.

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Impacts of Vegetation Types on Soil Physicochemical Properties

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 24 Number of periods: 2017 06 Page number: 238-242,249 Column: Public date: 2017-11-24

Title:: Impacts of Vegetation Types on Soil Physicochemical Properties

Author(s):: YANG Yahui^1,3, LÜ Du², ZHANG Xiaoping^1,2, Muretijiang Abula², ZHAO Wenhui², LIN Pengfei^1,3, YU Yipeng²; 1. State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Chinese Academy of Sciences, Yangling, Shaanxi 712100, China;
2. Institute of Soil and Water Conservation, Northwest A & F University, Yangling, Shaanxi 712100, China;
3. University of Chinese Academy of Sciences, Beijing 100049, China

Keywords:: Loess Plateau; different afforestation species; understory vegetation; soil physical and chemical properties

CLC:: S714.2

DOI:: -

Abstract:: The ecological environment in Loess Plateau is fragile and the soil erosion is sever. Afforestation is the important means to improve the ecological environment. Different plantation species and configuration modes affect physicochemical properties of soil and soil erosion. Eight runoff plots with various afforestation species and different configurations in Wangdonggou watershed located in Changwu were selected in this research, and quadrat method was used in understory vegetation ecological investigation. Soil bulk density, porosity, organic matter content in soil layer were measured; physicochemical properties were also analyzed under different artificial afforestation models. The results showed that the richness, diversity and evenness index of herb layer under different types of understory vegetation showed non-significant difference, and physical and chemical property difference in 20-40 cm soil layer was greater than that in the surface layer. The soil bulk densities in plots with various plantations were significantly different, and the vegetation cover had the significant effect on soil capillary porosity and total porosity in 20-40 cm layer. The capillary porosity had a markedly relation with the richness, diversity index of herb layer, so did total porosity and organic matter. In the 0-40 cm soil profile, grasses have a good ability to increase the water storage and infiltration. Herbaceous species richness and species diversity indices were passtively correlated with water storage in topsoil.

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