[1]ZHENG Kaili,DENG Dongzhou.Characteristic and Influencing Factors of Soil Infiltration in Zoige Wetland[J].Research of Soil and Water Conservation,2019,26(03):179-184,191.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 03
Page number:
179-184,191
Column:
Public date:
2019-04-12
- Title:
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Characteristic and Influencing Factors of Soil Infiltration in Zoige Wetland
- Author(s):
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ZHENG Kaili1, DENG Dongzhou2
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1. Sichuan Water Conservancy Vocational College, Chengdu 611231, China;
2. Sichuan Academy of Forestry, Chengdu 610081, China
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- Keywords:
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Zoige Wetland; soil infiltration; influencing factors
- CLC:
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S152.7
- DOI:
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- Abstract:
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Four typical soil samples (peat, swamp, meadow, sands) were used to study the characteristic and influencing factors of soil infiltration in Zoige wetland. The results showed that:(1) Soil organic carbon, water content, capillary porosity, 1~0.05 mm particle size, water stable aggregates of > 5 mm, > 2 mm and > 0.25 mm decreased with the increasing of soil depth, while soil bulk density, non-capillary porosity showed the opposite change trend; (2) there was a significant difference of soil infiltration among these soil types, and the stable infiltration time (130 min) was longer in peat and stable infiltration time (80 min) was short in sands; (3) the parameters of soil infiltration decreased in the order:peat > swamp > meadow > sands, and decreased with the increase of soil depth; (4) the three formulas could well simulate the infiltration process of rainfall into soil, and precision values of the researched soil type simulated by Kostiakov infiltration model was the highest; (5) among all soil types, ability of soil infiltration was positively correlated with soil organic carbon, water content, capillary porosity and >5 mm water stable aggregate, which were the main influencing factors on soil infiltration in Zoige wetland. In total, the peat soil had a positive effect on the prevention of soil erosion.