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On-line Access: 2024-08-27
Received: 2023-10-17
Revision Accepted: 2024-05-08
Crosschecked: 2019-06-18
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Sandar Lin, Charles W.W. Ng, Jie Xu, Rui Chen, Jian Liu, Zhong-kui Chen, Chung Fai Chiu. Effects of shrub on one-dimensional suction distribution and water infiltration in a three-layer landfill cover system[J]. Journal of Zhejiang University Science A, 2019, 20(7): 546-552.
@article{title="Effects of shrub on one-dimensional suction distribution and water infiltration in a three-layer landfill cover system",
author="Sandar Lin, Charles W.W. Ng, Jie Xu, Rui Chen, Jian Liu, Zhong-kui Chen, Chung Fai Chiu",
journal="Journal of Zhejiang University Science A",
volume="20",
number="7",
pages="546-552",
year="2019",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A1800145"
}
%0 Journal Article
%T Effects of shrub on one-dimensional suction distribution and water infiltration in a three-layer landfill cover system
%A Sandar Lin
%A Charles W.W. Ng
%A Jie Xu
%A Rui Chen
%A Jian Liu
%A Zhong-kui Chen
%A Chung Fai Chiu
%J Journal of Zhejiang University SCIENCE A
%V 20
%N 7
%P 546-552
%@ 1673-565X
%D 2019
%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A1800145
TY - JOUR
T1 - Effects of shrub on one-dimensional suction distribution and water infiltration in a three-layer landfill cover system
A1 - Sandar Lin
A1 - Charles W.W. Ng
A1 - Jie Xu
A1 - Rui Chen
A1 - Jian Liu
A1 - Zhong-kui Chen
A1 - Chung Fai Chiu
J0 - Journal of Zhejiang University Science A
VL - 20
IS - 7
SP - 546
EP - 552
%@ 1673-565X
Y1 - 2019
PB - Zhejiang University Press & Springer
ER -
DOI - 10.1631/jzus.A1800145
Abstract: Generally, landfill caps are covered with plants to prevent erosion and maintain a natural environment attractive to birds and other wildlife. Plants extract moisture from landfill cover soils during transpiration, and increase soil matric suction, consequently reducing water permeability and influencing the performance of the landfill cover during wetting. However, the effects of plants on suction distribution during drying and their consequent effect on the performance of a landfill cover system during wetting have not been investigated thoroughly. In this study, two soil column tests (one planted with the shrub Schefflera arboricola and the other one bare) were carried out to investigate the effects of shrub on 1D suction distribution in a three-layer landfill cover system during drying and wetting, and on the effectiveness of the landfill cover system in preventing water infiltration upon wetting. Despite the planted column having a higher infiltration rate, the shrub enhanced the effectiveness of the three-layer landfill cover system in preventing water percolation because of its higher induced suction from drying, leading to a higher water storage capacity.
This paper presented the effects of shrub on the suction distribution in a three-layer landfill cover during drying and wetting, and examined the effectiveness of such a system to prevent water infiltration upon wetting via soil column testing. Novelty of this study lied on the plants' hydraulic effects on three-layer system. In general the paper was well-written.
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