Effects of Rainfall Intensity and Vegetation Cover on Erosion Characteristics of a Soil Containing Rock Fragments Slope

Joint Authors

Wennian, Xu
Zhenyao, Xia
Zhao, Bingqin
Zhang, Lun
Xia, Lu
Liang, Yongzhe
Xia, Dong

Source

Advances in Civil Engineering

Issue

Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-14, 14 p.

Publisher

Hindawi Publishing Corporation

Publication Date

2019-09-17

Country of Publication

Egypt

No. of Pages

14

Main Subjects

Civil Engineering

Abstract EN

Rainfall events coupled with shallow and gravelly sloping farmland have led to serious soil erosion and associated problems in the Three Gorges reservoir.

Previous studies have shown that the use of vegetation is an effective way to control soil erosion.

Therefore, an artificial, simulated rainfall experiment study is conducted to determine the effect of rainfall intensity and vegetation cover on runoff volume, sediment load, and runoff hydraulics characteristics.

The experiment consists of seven vegetation treatments subjected to three rainfall intensities on a soil that contains rock fragments on a slope of 30°.

The results indicate that the runoff volume and sediment load of the bare plot were greater than those of vegetation-covered plots under three different rainfall intensities.

When Cynodon dactylon and Indigofera amblyantha were applied together, the plot displayed the best performance for soil loss control, with a reduction of 87.88%–99.11%.

According to a redundancy analysis, the change in rainfall intensity had the least impact on the Reynolds number and the runoff volume of the herb-shrub mixed plot in this study.

These findings suggest that the effect of combining Cynodon dactylon and Indigofera amblyantha and increasing the vegetation coverage is an effective solution for soil and water loss conservation.

The application of this method can alleviate environmental stress on the Three Gorges reservoir.

American Psychological Association (APA)

Zhao, Bingqin& Zhang, Lun& Zhenyao, Xia& Wennian, Xu& Xia, Lu& Liang, Yongzhe…[et al.]. 2019. Effects of Rainfall Intensity and Vegetation Cover on Erosion Characteristics of a Soil Containing Rock Fragments Slope. Advances in Civil Engineering،Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1116921

Modern Language Association (MLA)

Zhao, Bingqin…[et al.]. Effects of Rainfall Intensity and Vegetation Cover on Erosion Characteristics of a Soil Containing Rock Fragments Slope. Advances in Civil Engineering No. 2019 (2019), pp.1-14.
https://search.emarefa.net/detail/BIM-1116921

American Medical Association (AMA)

Zhao, Bingqin& Zhang, Lun& Zhenyao, Xia& Wennian, Xu& Xia, Lu& Liang, Yongzhe…[et al.]. Effects of Rainfall Intensity and Vegetation Cover on Erosion Characteristics of a Soil Containing Rock Fragments Slope. Advances in Civil Engineering. 2019. Vol. 2019, no. 2019, pp.1-14.
https://search.emarefa.net/detail/BIM-1116921

Data Type

Journal Articles

Language

English

Notes

Includes bibliographical references

Record ID

BIM-1116921