Next Article in Journal
Integration of Sustainability into Architectural Education at Accredited Korean Universities
Next Article in Special Issue
Impact of Population Growth on the Water Quality of Natural Water Bodies
Previous Article in Journal
Energy Efficiency Gain of Cellular Base Stations with Large-Scale Antenna Systems for Green Information and Communication Technology
Open AccessArticle

The Impact of Vegetative Slope on Water Flow and Pollutant Transport through Embankments

Key Laboratory of Efficient Irrigation-Drainage and Agricultural Soil-Water Environment in Southern China of Ministry of Education, Hohai University, Nanjing 210098, China
College of Water Conservancy and Hydropower Engineering, Hohai University, Nanjing 210098, China
Jiangxi Province Research Institute of Soil and Water Conservation, Nanchang 330029, China
Author to whom correspondence should be addressed.
Sustainability 2017, 9(7), 1128;
Received: 22 May 2017 / Revised: 25 June 2017 / Accepted: 26 June 2017 / Published: 27 June 2017
(This article belongs to the Collection Eutrophication and Sustainable Management of Water)
Embankments are common structures along rivers or lakes in riparian zones in plain areas. They should have natural slopes instead of slopes covered by concrete or other hard materials, in order to rebuild sustainable ecosystems for riparian zones. This study was conducted to evaluate the effects of vegetative slopes on water flow and pollutant transport through the embankments. Three embankments with different slope treatments (a bare slope, a slope covered in centipede grass, a slope covered in tall fescue) were examined, and three inflow applications of pollute water with different concentration of total nitrogen (TN) and total phosphorus (TP) used to simulate different agricultural non-point pollution levels. The results showed that the water flux rates of the three embankments were relatively stable under all inflow events, and almost all values were higher than 80%. The embankments with vegetative slopes had better nitrogen removal than the bare slope under all events, and the one with tall fescue slope was best, but the benefits of vegetative slopes decreased with increasing inflow concentration. Moreover, there were no significant differences between the embankments on phosphorus removal, for which the reductions were all high (above 90%) with most loads remaining in the front third of embankment bodies. Overall, the embankments with vegetative slopes had positive effects on water exchange and reducing non-point pollutant into lake or river water, which provides a quantitative scientific basis for the actual layout of lakeshores. View Full-Text
Keywords: embankment; vegetation slope; nitrogen; phosphorus; transport; reduction embankment; vegetation slope; nitrogen; phosphorus; transport; reduction
Show Figures

Figure 1

MDPI and ACS Style

Sheng, L.; Zhang, Z.; Xia, J.; Yang, J.; Tang, D.; Chen, X.-A. The Impact of Vegetative Slope on Water Flow and Pollutant Transport through Embankments. Sustainability 2017, 9, 1128.

Show more citation formats Show less citations formats
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map

Back to TopTop