Effects of Soil Properties and Illumination Intensities on Matric Suction of Vegetated Soil
Liu, Qi1,2; Su, Lijun2,3,4,5; Xia, Zhenyao1; Liu, Daxiang1; Xu, Wennian1; Xiao, Hai1
Source PublicationSUSTAINABILITY
Contribution Rank2
AbstractMatric suction induced by evapotranspiration is an important parameter for determining the hydraulic mechanisms of vegetation on slope stability. Despite evapotranspiration closely associated with atmospheric parameters and soil conditions, the influence of soil properties and illumination intensities on matric suction of vegetated soil has so far received the least research attention. In this paper, three kinds of soil, namely, fine sandy loam, sandy silt, and silty clay, were selected as experimental soils, and Indigofera amblyantha was chosen as the test plant. The test conditions were controlled, such as the use of homogeneous soil and uniform plant growth conditions. Each specimen was exposed to identical atmospheric conditions controlled in a laboratory for monitoring matric suction responses over 10 days. The results showed that illumination intensities play an important role in evapotranspiration, and the thermal energy from lighting had a direct impact on plant transpiration, whereas the lighting only affected plant photosynthesis. Plant roots in vegetated soil can effectively improve the air intake value of soil, and matric suction induced by plant transpiration in vegetated soil was 1.5-2.0 times that of un-evapotranspirated soil. There is a correlation between matric suction and the silt and clay contents, and the matric suction of silty clay was sensitive to changes in the soil moisture content. Compared to fine sandy loam, the water retention of sandy silt and silty clay was high, and a high level of matric suction was maintained in the corresponding time. The results for predicting soil water evapotranspiration based on matric suction have theoretical and practical significance for preventing soil erosion and shallow landslides. In addition, these results have great guiding significance for agricultural production, such as irrigation.
Keywordvegetated soil matric suction evapotranspiration illumination intensities soil properties
Indexed BySCI
WOS Research AreaScience & Technology - Other Topics ; Environmental Sciences & Ecology
WOS SubjectGreen & Sustainable Science & Technology ; Environmental Sciences ; Environmental Studies
WOS IDWOS:000503277900288
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Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Corresponding AuthorXia, Zhenyao; Xiao, Hai
Affiliation1.China Three Gorges Univ, Key Lab Geol Hazards Three Gorges Reservoir Area, Minist Educ, Yichang 443002, Peoples R China;
2.Chinese Acad Sci, Key Lab Mt Hazards & Earth Surface Proc, Inst Mt Hazards & Environm, Chengdu 610041, Sichuan, Peoples R China;
3.Chinese Acad Sci, CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China;
4.China Pakistan Joint Res Ctr Earth Sci, Islamabad 45320, Pakistan;
5.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
Recommended Citation
GB/T 7714
Liu, Qi,Su, Lijun,Xia, Zhenyao,et al. Effects of Soil Properties and Illumination Intensities on Matric Suction of Vegetated Soil[J]. SUSTAINABILITY,2019,11(22):6475.
APA Liu, Qi,Su, Lijun,Xia, Zhenyao,Liu, Daxiang,Xu, Wennian,&Xiao, Hai.(2019).Effects of Soil Properties and Illumination Intensities on Matric Suction of Vegetated Soil.SUSTAINABILITY,11(22),6475.
MLA Liu, Qi,et al."Effects of Soil Properties and Illumination Intensities on Matric Suction of Vegetated Soil".SUSTAINABILITY 11.22(2019):6475.
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