[1]LV Jing,GAO Jia-rong,WANG Ying,et al.Effects of Different Plant Revetments on the Soil Physical Feature[J].Research of Soil and Water Conservation,2010,17(03):101-104,109.
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Effects of Different Plant Revetments on the Soil Physical Feature
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
17
Number of periods:
2010 03
Page number:
101-104,109
Column:
Public date:
2010-06-20
- Title:
- Effects of Different Plant Revetments on the Soil Physical Feature
- Keywords:
- plant revetments; plant roots; shear strength; soil organic matter; temperature
- CLC:
- S153;X171.1
- DOI:
- -
- Abstract:
- Plants have an important role in improving slope stability and decreasing soil loss. Plant roots make the shear strength of soil stronger and organic matter more and keep the water of slope. The natural herb, artificial herb, alfalfa, salix aureo-pendula, elm were selected as research objects. The roots of the natural herb are composed of kinds of herb roots. The soil properties are compared and analyzed in three respects of shear strength, organic matter and surface temperature. The value of shear stress of the different plant revetment using direct shear apparatus are measrued. The results show the internal friction angle of herb roots soil is increased, and shrub in the early growth stage is the same as it. Their mechanisms of improving shear strength are the same. The viscous force of perennial shrub slope is increased. The shear strength of elm roots is more than that of salix aureo-pndula roots. The shear strength of the natural herb revetment is larger than that of the artificial herb. The order of soil organic from high to low is salix aureo-pendula, elm, natural herb, alfalfa and artificial herb. The six kinds of plants all reduce the temperature of the surface of slope. The results will give some suggestions on design of vegetative revetments and plant disposition and choice of plant variety.
- References:
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Last Update:
1900-01-01