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Effects of two types of activated carbon on the properties of vegetation concrete and Cynodon dactylon growth
- Source :
- Scientific Reports, Scientific Reports, Vol 10, Iss 1, Pp 1-12 (2020)
- Publication Year :
- 2019
-
Abstract
- Vegetation concrete is one of the most widely used substrates for slope ecological protection in China. However, there are still some imperfections that are disadvantageous for plant growth, such as high density, low porosity, insufficient nutrient retention ability and so on. In this paper, the effect of wood activated carbon and mineral activated carbon on the physicochemical properties of vegetation concrete is studied. The experimental results show that the activated carbon proportion in vegetation concrete is positively related to the porosity, permeability coefficient, water holding capacity, and nutrient content and retention ability, while it is negatively related to the dry density, water retention ability, cohesive force and internal friction angle. However, it should be noticed that when the proportion exceeds 2%, the average height, aboveground biomass and underground biomass of Cynodon dactylon decrease with increasing proportion of activated carbon. The effect of wood activated carbon is generally more remarkable than that of mineral activated carbon. In addition, according to the research results, the effect of activated carbon on vegetation concrete can last for at least half a year, although it does slowly deteriorate with increasing time. By comprehensive consideration of the current industry standard, previous research results and economical reasoning, the recommended type of activated carbon is wood, with a corresponding suitable proportion ranging between 1 and 2%.
- Subjects :
- 0301 basic medicine
Plant growth
China
Conservation of Natural Resources
Nitrogen
Science
Biomass
Environment
Permeability
Article
03 medical and health sciences
Soil
0302 clinical medicine
Nutrient
Engineering
medicine
Porosity
Multidisciplinary
biology
Phosphorus
Vegetation
Cynodon dactylon
biology.organism_classification
Wood
Carbon
Water retention
Environmental sciences
030104 developmental biology
Agronomy
Cynodon
Charcoal
Microscopy, Electron, Scanning
Potassium
Medicine
Environmental science
Stress, Mechanical
medicine.symptom
Shear Strength
030217 neurology & neurosurgery
Activated carbon
medicine.drug
Subjects
Details
- ISSN :
- 20452322
- Volume :
- 10
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Scientific reports
- Accession number :
- edsair.doi.dedup.....617d2ae39eb65786aa4dd06359dc5ce3