In this paper, the definitions of soil macropore and macropore flow, their types, characteristics, generation mechanisms, and experimental methods in laboratory and field were introduced, and the research progress in their determination techniques, including dye tracing, slice up, penetration curve, tension infiltration apparatus, X-ray CT scanning, and radar exploration were summarized. It was indicated that because of the complexity of the factors affecting soil macropore and macropore flow, the experiments in laboratory should be combined with those in field, and the observation techniques and simulation measures should be further improved.
Download full-text PDF |
Source |
|---|
Publication Analysis
Top Keywords
Similar Publications
Advantages and disadvantages of current human enteric virus surrogates in soils and aquifers.
Sci Total Environ
January 2025
College of Water Resources and Civil Engineering, China Agricultural University, Beijing 100083, China.
Groundwater is one of the main sources of drinking water, thus, human enteric viruses in groundwater could pose safety risks. Many enteric viruses enter drinking water sources through irrigation or recharge of contaminated water. It is therefore advised to test the potential transport risk with harmless surrogates before wastewater or recycled water is used for irrigation or groundwater recharge.
View Article and Find Full Text PDFHighly efficient adsorption of natural organic matter from aqueous solutions by macroporous weakly basic anion exchange resin: performance, mechanism, and fixed - bed column.
J Environ Sci Health A Tox Hazard Subst Environ Eng
January 2025
State Key Laboratory of Urban Water Resources and Environment, School of Environment, Harbin Institute of Technology, Harbin, China.
In this study, humic acid was used as a model pollutant to investigate the removal effect of a macroporous weakly alkaline anion exchange resin D301 on natural organic matter (NOM) in water. 3D fluorescence spectroscopy, UV - visible spectrophotometry and Fourier transform infrared (FTIR) spectroscopy were employed to analyze changes in the physical and chemical properties of humic acid solution and natural water samples before and after resin adsorption. The results showed that using humic acid as a model pollutant to simulate NOM in water is feasible.
View Article and Find Full Text PDFA dataset of µCT images of small samples of constructed Technosol from bioretention cells.
Data Brief
December 2024
Czech Technical University in Prague, Faculty of Civil Engineering, Prague 166 29, Czech Republic.
The dataset represents micro computed tomography (µCT) images of undisturbed samples of constructed Technosol, obtained by sampling from the top layer of the biofilter in two bioretention cells. A bioretention cell is a stormwater management system designed to collect and temporarily retain stormwater runoff and treat it by filtering it through a soil media called a biofilter. Soil samples were collected at 7, 12, 18, 23, and 31 months after the establishment of bioretention cells.
View Article and Find Full Text PDFA review of advancements in the theory and characterization of soil macropore structure.
PeerJ
November 2024
School of Chemical and Environmental Engineering, China University of Mining and Technology- Beijing, Beijing, China.
Soil has an intricate pore structure, with the macropore structure serving as a pivotal component of gas exchange, liquid flow, and solute transport within the soil matrix. Scientifically understanding the macropore structure is important for the exploration of soil ecological functions. Drawing upon research literature from diverse nations, this study presents a comprehensive summary of past research findings, thoroughly examining the definition and taxonomy of soil macropores.
View Article and Find Full Text PDFBiochar application improves maize yield on the Loess Plateau of China by changing soil pore structure and enhancing root growth.
Sci Total Environ
December 2024
State Key Laboratory of Efficient Utilization of Agricultural Water Resources, Key Laboratory of Dryland Agriculture, Ministry of Agriculture and Rural Affairs of China, Institute of Environment and Sustainable Development in Agriculture, Chinese Academy of Agricultural Sciences, Beijing 100081, China. Electronic address:
Biochar application emerges as a valuable soil management strategy for enhancing crop yield; however, the mechanisms underlying the relationships between soil and plants remain unclear after biochar application. In this study, soil pore characteristics and maize yield were assessed in a five-year biochar-application experiment on the Loess Plateau of China, including four treatments: Control (no biochar), low-dose biochar application (LB, 3 t ha), moderate-dose biochar application (MB, 6 t ha), and high-dose biochar application (HB, 9 t ha). Root growth traits were evaluated by cultivating maize in intact soil cores collected from field conditions using X-ray computed tomography.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!