[1]SONG Aiyun,DONG Linshui,LIU Shirong,et al.Soil Infiltration Characteristics and Its Influencing Factors in Different Subalpine Meadow Communities[J].Research of Soil and Water Conservation,2018,25(03):41-45.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 03
Page number:
41-45
Column:
Public date:
2018-04-10
- Title:
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Soil Infiltration Characteristics and Its Influencing Factors in Different Subalpine Meadow Communities
- Author(s):
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SONG Aiyun1, DONG Linshui1, LIU Shirong2, LIU Jingtao1
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1. Shandong Provincial Key Laboratory of Eco-Environmental Science for Yellow River Delta, Binzhou University, Binzhou, Shandong 256603, China;
2. Research Institute of Forest Ecology, Environment and Protection, Key Laboratory of Forest Ecology and Environment, State Forestry Administration, Chinese Academy of Forestry, Beijing 100091, China
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- Keywords:
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subalpine meadow; community types; soil infiltration; soil physical property; biomass
- CLC:
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S152.72
- DOI:
-
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- Abstract:
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The soil infiltration properties of three typical subalpine meadow communities under different altitudes in the Wolong Nature Reserve were examined. The three subalpine meadow communities include Kobresia setchwanensis meadow, Stellera chamaejasme meadow and Deyeuxia scabrescens meadow. The results showed that the process of soil infiltration in subalpine meadow could be divided into 3 stages including transient phase, gradual phase and stable phase. In the transient phase and gradual phase, the sequence of the soil infiltration rates in three different communities were Kobresia setchwanensis meadow > Stellera chamaejasme meadow > Deyeuxia scabrescens meadow. In addition, with increase of soil depth in the Kobresia setchwanensis meadow, the soil infiltration rate showed a gradually decreasing trend. The models of Philip, Jiang Dingsheng, Horton and Kostiakov were used to fit the soil infiltration processes in different subalpine meadow communities. The results showed that Horton model has the highest precision. Correlation analysis showed that the final stable soil infiltration rate had the significantly negative correlation with the soil bulk density, but the significantly positive correlation with the soil total porosity, non-capillary porosity, soil aeration and the aboveground biomass per unit area.