[1]SUN Ouwen,CAI Jianguo,WU Jiasen,et al.Hydrological Characteristics of Litter and Forest Soil of Typical Forest Types in Zhejiang Province[J].Research of Soil and Water Conservation,2019,26(01):118-123.
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Hydrological Characteristics of Litter and Forest Soil of Typical Forest Types in Zhejiang Province
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 01
Page number:
118-123
Column:
Public date:
2019-02-28
- Title:
- Hydrological Characteristics of Litter and Forest Soil of Typical Forest Types in Zhejiang Province
- Keywords:
- storage; litter; hydrological characteristics; Zhejiang Province
- CLC:
- S715.3
- DOI:
- -
- Abstract:
- Selecting litter and soil of five typical forest types (Chinese fir forest, moso bamboo forest, broad-leaved forest, mixed broadleaf-conifer forest, and masson pine forest) in Zhejiang Province as the research object, we set up sample plots with 30 m×30 m in which hydrological effects of litter of plots was examined by soaking method, and hydrological effects of soil layer was investigated by cutting ring method. The results are as follows. The litter amounts of different forest types greatly varied from 10.14 t/hm2 to 25.07 t/hm2, and the litter amount decreased in the order:mixed broadleaf-conifer forest > broad-leaved forest > masson pine forest > Chinese fir forest > moso bamboo forest; the maximum water-holding capacity of litter ranged from 21.82 t/hm2 to 33.64 t/hm2, the maximum water-holding capacity decreased in the order:mixed broadleaf-conifer forest > broad-leaved forest > Chinese fir forest > masson pine forest > moso bamboo forest;the effective impoundment amount was between 16.8 t/hm2 and 24.84 t/hm2, and the effective impoundment amount decreased in the order:mixed broadleaf-conifer forest > Chinese fir forest > broad-leaved forest > masson pine forest > moso bamboo forest. The water-holding capacities of litter of the five types of forest increased and stabilized gradually with the increase of immersion time, which could be described by logarithmic function. Forest litter had the largest water absorption rate within the initial half hour, and water absorption rate declined sharply after 1 hour; with the increase of immersion time, the water absorption rate of litter tended to be consistent, and they presented the power function relationship; there were no significant differences in the soils of the 5 forest types in terms of soil bulk density, noncapillary porosity, porosity, and water-holding capacity, and the average soil water-holding capacity varied from 201.86 t/hm2 to 296.63 t/hm2. In short, water-holding capacities of the broad-leaved forest and forest containing broad-leaved tree species were higher than those of the coniferous forest.
- References:
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1900-01-01