废草纤维对植被土壤保水性和开裂特性的影响

IF 1.5 4区工程技术 Q3 ENGINEERING, GEOLOGICAL

Geotechnique Letters Pub Date : 2018-05-25 DOI:10.1680/jgele.17.00181

Sanandam Bordoloi, V. Gadi, Rojimul Hussain, L. Sahoo, A. Garg, S. Sreedeep, G. Mei, T. Poulsen

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引用次数: 20

摘要

水葫芦也被称为水葫芦(WH)，是世界上最具侵略性的杂草物种之一。在热带地区，绿色基础设施必须经历多次干旱循环，导致干旱裂缝，也导致植物的水分胁迫状态。绿色基础设施提倡使用有机材料，以增加植被的保水和覆盖能力。这封信的主要目的是探讨废WH纤维对植被土壤水力特性(保水性和开裂)的影响。裸地(无植被)土(BS)、土壤+草(SG)和土壤+草+ wh -纤维(SGWH) 3个土壤系列进行了73 d的试验。监测各系列牧草参数(气孔导度- sc、蒸散量- etr、牧草密度- gd、茎长- sl)和土壤参数(吸力- ψ、体积含水量-θ、裂缝强度因子- cif、蒸发量- er)。SGWH降低了…

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Influence of fiber from waste weed Eichhornia Crassipes on water retention and cracking characteristics of vegetated soils

Eichhornia Crassipes also known as water hyacinth (WH) is listed among the world's most invasive weed species. In tropical regions, green infrastructures have to undergo multiple drought cycles which induces desiccation cracks and also lead to water stressed condition of plants. The use of organic materials is advocated in green infrastructure for increasing water retention and ground covering ability of vegetation. The main objective of this letter is to explore the influence of inclusion of waste WH fibers on hydraulic characteristics (water retention and cracking) of vegetated soils. Three soil series including bare (without vegetation) soil (BS), (soil + grass (SG)) and (soil + grass + WH-fiber (SGWH)) were tested for 73 days. Grass parameters (Stomatal conductance-SC, Evapotranspiration-Etr, grass density-GD, shoot length-SL) and soil parameters (suction- ψ, volumetric moisture content-θ, crack intensity factor-CIF, Evaporation-Er) were monitored for all series. SGWH decreases the CIF potential of so...

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来源期刊

Geotechnique Letters ENGINEERING, GEOLOGICAL-

CiteScore

4.20

自引率

0.00%

发文量

期刊介绍： Géotechnique Letters provides a vehicle for the rapid international dissemination of the latest and most innovative geotechnical research and practice. As an online journal, it is aimed at publishing short papers, intending to foster the quick exchange of the latest advances and most current ideas without the delays imposed by printed journals, whilst still maintaining rigorous peer reviewing standards.