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[1]WANG Limei,ZHANG Qian,BAI Lihua,et al.Effects of Three Artificial Vegetation Types on Soil Particle Composition and Carbon Fixation in the Mu Us Sandy Land[J].Research of Soil and Water Conservation,2020,27(01):88-94.

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Effects of Three Artificial Vegetation Types on Soil Particle Composition and Carbon Fixation in the Mu Us Sandy Land

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 27 Number of periods: 2020 01 Page number: 88-94 Column: Public date: 2020-02-20

Title:: Effects of Three Artificial Vegetation Types on Soil Particle Composition and Carbon Fixation in the Mu Us Sandy Land

Author(s):: WANG Limei¹, ZHANG Qian¹, BAI Lihua¹, MA Aisheng¹, ZHANG Hong¹, LI Limin¹, ZHANG Jianguo^1,2, FU Guangjun³, DONG Qiang³; (1.College of Natural Resources and Environment, Northwest A&F University, Yangling, Shaanxi 712100, China; 2.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Northwest A&F University, Yangling, Shaanxi 712100, China; 3.Desert Control Research Institute of Shaanxi Province, Yulin, Shaanxi 719000, China)

Keywords:: vegetation restoration; soil particle composition; soil organic carbon; soil inorganic carbon; Mu Us Sandy Land

CLC:: S151⁺3; S728.4

DOI:: -

Abstract:: Vegetation restoration has an important impact on soil carbon sequestration in arid and semi-arid regions. Exploring the effects of vegetation restoration on soil carbon content of different particles is helpful to further reveal the evolution process of desert soils. The arbor forest, shrub forest, grassland and shifting sandy land were selected in the artificial vegetation restoration area on the southeastern margin of the Mu Us Sandy Land, and top 0—30 cm soils were collected and analyzed layer by layer. The results showed that the restoration of arbors, shrubs and grassland can reduce the content of soil coarse particles(fine and coarse sand particles)and increase the content of aggregates, silt and clay; the contents of soil organic carbon(SOC)and soil inorganic carbon(SIC)significantly increased after vegetation restoration, and the highest values of soil carbon were observed in the arbor forest, which were 3.96 times and 2.08 times higher than that of shifting sandy land; the effect of vegetation restoration on SOC density was more obvious than SIC density; arbor forest was beneficial for organic carbon accumulation in coarse sand and fine sand, and shrub forest was more beneficial for organic carbon accumulation in silt and clay and aggregates; SOC contents of each particle size increased most obviously in fine sand and SIC contents of each particle size increased most obviously in silt and clay; the contribution rate of organic carbon in silt and clay to total organic carbon was more significant. In summary, the restoration of three different types of vegetation can increase the SOC and SIC, planting arbor is the best choice for vegetation restoration from the perspective of increasing soil carbon sequestration in the Mu Us Sandy Land.

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Last Update: 2020-02-25