[1]YU Ming-mei,XIE Zheng-sheng.Study on Soil Permeability Capability of Five Forest Types in Baiyunshan Scenic Spot of Guangzhou[J].Research of Soil and Water Conservation,2011,18(01):153-156.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
18
Number of periods:
2011 01
Page number:
153-156
Column:
Public date:
2011-02-20
- Title:
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Study on Soil Permeability Capability of Five Forest Types in Baiyunshan Scenic Spot of Guangzhou
- Author(s):
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YU Ming-mei1, XIE Zheng-sheng1,2
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1. College of Forestry, South China Agricultural University, Guangzhou 510642, China;
2. Center for Non-timber Forest Research, South China Agricultural University, Guangzhou 510642, China
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- Keywords:
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soil infiltration rate; urban forest; soil initial infiltration rate; soil and water conservation; water conservation
- CLC:
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S715.3
- DOI:
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- Abstract:
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The soil permeability of five typical forest types were studied in Baiyunshan scenic spot of Guangzhou. The results showed that the soil initial infiltration rates, stable infiltration rates and average infiltration rates of 0-60 cm soil layers varied 2.26~3.91 mm/min, 1.31~2.09 mm/min, 1.51~2.46 mm/min, respectively. Soil infiltration rate f(t) versus time (t) coefficients regression equation performs exponent relation. The soil infiltration had no significant difference among 0-20 cm, 20-40 cm and 40-60 cm soil layers. There was no significant difference in soil infiltration among the different forest types, too. The sequence of soil infiltration of forest types was natural secondary pure broad-leaved forest > broad-leaved plantation > coniferous plantation > natural secondary mixed forest > shrub-grassland plantation. The soil initial infiltration rates, stable infiltration rates and average infiltration rates influenced by the other soil physical properties, they assumed the positive correlativity with total porosity, non-capillary porosity and the content of rock fragment, while bulk gravity had the inverse correlations, respectively. Among them, the non-capillary porosity and the content of rock fragment were dominant factors. The study can provide reference for evaluation of water conservation and calculation of water conservation in urban forest.