[1]Characteristics of Litter and Soil Water-Holding of Two Types Forest Stand in Upstream of Woken River[J].Research of Soil and Water Conservation,2021,28(02):235-241.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
28
Number of periods:
2021 02
Page number:
235-241
Column:
Public date:
2021-02-06
- Title:
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Characteristics of Litter and Soil Water-Holding of Two Types Forest Stand in Upstream of Woken River
- Author(s):
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(Heilongjiang Forestry Institute, Harbin 150081, China)
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- Keywords:
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forest hydrology; water-holding characteristics; litter; soil; mixed forest; Korean pine broad-leaved forest
- CLC:
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S715.3
- DOI:
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- Abstract:
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To explore the hydrological functions of forest with different tree species, the storage and water-holding characteristics of litter of two types forest stand in upstream of Woken River were surveyed by using field investigation and soaking method, the hydrological characteristics of soil layer were measured by cutting ring method. The results showed that: the litter thickness of two types forest was about 7.5 cm, and the litter storage ranged from 8.07~9.85 t/hm2, the maximum water-holding capacity and effective water interception capacity were at range of 2.0~2.5 mm and 1.0 mm rainfall; the water-holding capacity of litter had a logarithmic relation with soaking time(R2>0.9843), and water absorption rate showed a power function with soaking time(R2>0.9999); the total soil porosity, non-capillary porosity, maximum soil water holding capacity, effective soil water holding capacity ranged 50.32%~51.41%, 3.00%~4.44%, 1 509.74~1 542.17 t/hm2, 89.96~133.32 t/hm2, respectively; broad leaved Korean pine forest had lower density and higher productivity, while the evaluation indexes of water holding capacity such as the maximum water holding capacity and effective interception capacity, the maximum water holding capacity and effective water holding capacity of soil layer were higher than those of mixed forest(p>0.05). The water holding capacity of the two stands is medium and low. In order to improve the water conservation functions of forest, the existing structure can be maintained and the research on density adjustment can be further carried out.