[1]ZHANG Biao,YANG Yan-gang,ZHANG Can-qiang.Characteristics of Water Conservation of Forest Ecosystem in Tai Lake Region[J].Research of Soil and Water Conservation,2010,17(05):96-100.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
17
Number of periods:
2010 05
Page number:
96-100
Column:
Public date:
2010-10-20
- Title:
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Characteristics of Water Conservation of Forest Ecosystem in Tai Lake Region
- Author(s):
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ZHANG Biao, YANG Yan-gang, ZHANG Can-qiang
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Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Science, Beijing 100101, China
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- Keywords:
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forest ecosystem; water conservation; litter; soil layer; Tai Lake Region
- CLC:
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S715.7
- DOI:
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- Abstract:
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In recent years, the water conservation of forest ecosystem has raised a number of concerns. However, the present studies in Tai Lake Region lack of a comprehensive discussion and analysis on water conservation of forests. This paper reviewed a great deal of forest hydrology studies in Tai Lake Region, and compared the characteristics of water conservation in forest litter and soil layer. Field measurements indicated that, the litter biomass of major forest types ranged from 4.68 t/hm2 to 14.4 t/hm2, the amount of water interception by litter varied from 11.6 t/hm2 to 29.99 t/hm2, and the interception ratio of fully water-saturated weight to its dry mass ranged from 187.24% to 246.22%. The forests in Tai Lake Region also had well-developed soil porosity, with non-capillary pores ranging from 10.21% to 16.53%, and capillary pores from 39.01% to 44.21%. In addition, the forest soil permeability capabilities varied with vegetation types. The deciduous broadleaf forest had the largest steady-state permeability of 6.74 mm/min, followed by Chinese fir plantation, bamboo, evergreen broadleaf forest and pine. In sum, more improvement should be done in water conservation functions of forests in Tai Lake Region.