[1]SU Shiping,LIU Xiaoe,LI Yi.Soil Infiltration Characteristics Under Four Shrub Types in Southern and Northern Mountains of Lanzhou City[J].Research of Soil and Water Conservation,2022,29(05):149-154,163.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
29
Number of periods:
2022 05
Page number:
149-154,163
Column:
Public date:
2022-08-20
- Title:
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Soil Infiltration Characteristics Under Four Shrub Types in Southern and Northern Mountains of Lanzhou City
- Author(s):
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SU Shiping, LIU Xiaoe, LI Yi
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(College of Forestry, Gansu Agricultural University, Lanzhou 730070, China)
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- Keywords:
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southern and northern mountains of Lanzhou City; shrub; soil infiltration characteristics; soil physical and chemical properties
- CLC:
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S714.2
- DOI:
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- Abstract:
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Soil infiltration characteristics including initial infiltration, stable infiltration, average infiltration and accumulative water quantity were studied under four different shrub types including Platycladus orientalis cv. sieboldii,Reaumuria soongorica, Caragana rosea and Tamarix chinensis in southern and northern mountains of Lanzhou City based on double ring infiltration method. The results showed that soil infiltration characteristics decreased with the increase of soil depth in the 0—80 cm soil layers; the soil infiltration characteristics under different forest types were in the following order: C. rosea>R. soongorica>P. orientalis cv. sieboldii>T. chinensis, while the order was the same among shrubs using principal component analysis. The Horton infiltration model gave the best performance on the infiltrating processes in the four shrub types, followed by Common empirical, Philip and the Kostiakov model. Correlation analysis between soil infiltration characteristics and soil physical and chemical properties showed that soil infiltration characteristics had extremely significant positive correlations with total porosity, soil organic matter, soil total nitrogen, mineral nitrogen, available phosphorus, available potassium, and had significant positive correlations with soil water content, noncapillary porosity, and had significant negative correlation with soil bulk density. Based on the correlation analyses, nine factors which have extremely significant or significant effect on soil infiltration capability were selected. These research results may be useful for providing a theoretical basis for the selection of tree species in the construction of artificial forests in the northern and southern mountains of Lanzhou City.