Mechanism Study of Differential Permeability Evolution and Microscopic Pore Characteristics of Soft Clay under Saturated Seepage: A Case Study in Chongming East Shoal DOI Open Access

Meng Yao,

Qing Wang, Qingbo Yu

и другие.

Water, Год журнала: 2023, Номер 15(5), С. 968 - 968

Опубликована: Март 2, 2023

Artificial reclamation is one of the main means land expansion in coastal cities. However, permeability underlying soft clay (USC), derived from dredged load, has not been paid enough attention, although it closely related to long-term deformation and stability foundation soil. Hence, this paper analyzes relationship between characteristics microscopic pore USC Chongming East Shoal (CES), a typical multi-phase area, through variable head test, mercury intrusion porosimetry (MIP) scanning electron microscope (SEM) test. Furthermore, grey relation entropy Pearson correlation analysis are implemented analyze influence micropore parameters on permeability. The results revealed that seepage process showed transition unstable relatively stable seepage. Meanwhile, coefficient (PC) attenuated with time cyclically, indicating alternating effect closed opened channels. During seepage, particles could be entrained by water intercepted pores, thus clogging Then, increased pressure break new degree was positively correlated average cycle period PCs, also present stage PCs. A lower mesopores content, higher fractal dimension, aggregated flocculate microstructure promote result efficiency. Affected channels, may face potential future, which needs further investigation.

Язык: Английский

Interactive Effects of Microbial Fertilizer and Soil Salinity on the Hydraulic Properties of Salt-Affected Soil DOI Creative Commons
Xu Yang, Ke Zhang, Tingting Chang

и другие.

Plants, Год журнала: 2024, Номер 13(4), С. 473 - 473

Опубликована: Фев. 7, 2024

Significant research has been conducted on the effects of fertilizers or agents sustainable development agriculture in salinization areas. By contrast, limited consideration given to interactive microbial fertilizer (MF) and salinity hydraulic properties secondary soil (SS) coastal saline (CS). An incubation experiment was investigate types, levels (non-saline, low-salinity, high-salinity soils), MF amounts (32.89 g kg

Язык: Английский

Процитировано

24

Numerical and experimental study on water-heat-salt transport patterns in shallow bare soil with varying salt contents under evaporative conditions: A comparative investigation DOI
Xudong Zhang,

Changjian Shu,

Manabu Fujii

и другие.

Journal of Hydrology, Год журнала: 2023, Номер 621, С. 129564 - 129564

Опубликована: Апрель 25, 2023

Язык: Английский

Процитировано

38

Status of the World's Soils DOI Open Access
Pete Smith, Rosa M. Poch, David A. Lobb

и другие.

Annual Review of Environment and Resources, Год журнала: 2024, Номер 49(1), С. 73 - 104

Опубликована: Сен. 4, 2024

Healthy soils contribute to a wide range of ecosystem services and virtually all the UN Sustainable Development Goals, but most world's soil resources are in only fair, poor, or very poor condition, conditions getting worse more cases than they improving. A total 33% moderately highly degraded as result erosion, loss organic matter, nutrient balance, salinization alkalinization, contamination, acidification, biodiversity, sealing, compaction, water status. Best management practices available limit mitigate threats health, many them multiple threats. In regions world, policies initiatives protect enhance status place, need be strengthened enforced. The Food Agriculture Organisation will publish its second comprehensive assessment 2025, this review provides an interim update on world offers accessible overview topic.

Язык: Английский

Процитировано

9

The impacts of soil enthalpy change on land–atmosphere interactions of permafrost on the Qinghai-Tibet Plateau DOI Creative Commons
Ren Li,

Shenning Wang,

Junjie Ma

и другие.

Geoderma, Год журнала: 2025, Номер 454, С. 117183 - 117183

Опубликована: Янв. 22, 2025

Язык: Английский

Процитировано

1

Progress towards the identification and improvement of dispersive soils: A review DOI
Xudong Zhang, Zhongxu Liu, Yan Han

и другие.

European Journal of Soil Science, Год журнала: 2024, Номер 75(5)

Опубликована: Сен. 1, 2024

Abstract Dispersive soils, characterized by their poor resistance to water erosion and high sodium ion concentrations, pose a significant threat both engineering agricultural activities. Thus, the identification improvement of dispersive soils are paramount importance. There several theories regarding causes soil dispersion, with prevailing view attributing it expansion electrical double layer induced ions, which subsequently reduces cohesion between particles. As result, indicators such as exchangeable percentage (ESP), (PS), adsorption rate (SAR) commonly employed in soils. Currently, efforts improve for purposes, chemical biological agents being added enhance soil's regulate concentration ions. Although numerous reviews have been conducted on they tend focus methods types improvers, often overlooking applicability methods, economic costs environmental impacts improvers. In practical improvement, accuracy must be ensured first foremost. The selection improvers should not only prioritise efficacy but also undergo thorough analysis evaluation from multiple perspectives. This paper, therefore, advantages disadvantages various assesses differences among standpoints, providing comprehensive theoretical basis

Язык: Английский

Процитировано

4

Hydro-Thermo-Mechanical Transient Response for a Cylindrical Unlined Tunnel in Poroelastic Medium Based on Non-singular Fractional Derivatives DOI Creative Commons
Chenlin Li, Liange Zheng,

Dechen Wang

и другие.

Journal of Vibration Engineering & Technologies, Год журнала: 2025, Номер 13(1)

Опубликована: Янв. 1, 2025

Язык: Английский

Процитировано

0

A bioinspired photothermal evaporator for enhanced salt separation during saline soil remediation DOI

Pan Wu,

Dong Zhou,

Yuejianshu Li

и другие.

Desalination, Год журнала: 2025, Номер unknown, С. 118647 - 118647

Опубликована: Фев. 1, 2025

Язык: Английский

Процитировано

0

Impact of soluble salt content on unfrozen water and matric suction during cooling of loess in Ili region, China DOI

Zhichao Liang,

Wenyuan Ren,

Shuangcun Li

и другие.

Bulletin of Engineering Geology and the Environment, Год журнала: 2025, Номер 84(3)

Опубликована: Фев. 8, 2025

Язык: Английский

Процитировано

0

Effects of infiltrated rain during the construction stage on the deformation law of a sulphated gravel embankment in regions with seasonally frozen soil DOI

Jinbao Han,

Jing Guobin, Shasha Zhang

и другие.

Soil and Tillage Research, Год журнала: 2025, Номер 250, С. 106507 - 106507

Опубликована: Фев. 24, 2025

Язык: Английский

Процитировано

0

Influence of Groundwater Depth on Soil Ion Distribution in the Agricultural Irrigation Areas of Northwest China DOI Creative Commons

Borui Peng,

Rui Dong, Yujiang He

и другие.

Agriculture, Год журнала: 2025, Номер 15(7), С. 747 - 747

Опубликована: Март 31, 2025

Extensive and unregulated groundwater extraction for irrigation in the arid inland basins of Northwest China has led to a continuous increase depth agricultural areas. This significantly altered distribution soil ions, making it difficult predict their evolution dynamic patterns. In this study, we used space-for-time substitution approach elucidate ion under changing depths. Experiments were conducted three typical areas with varying depths, that is, below 5 m, 5–10 above 10 m Korla, Xinjiang, China. Soil samples collected from five profiles at depths 0–180 cm measure moisture, salinity, major content. An innovative research framework was developed examine relationship between using ratios, principal components, hierarchical clustering, correlation analyses. aims reveal dynamics, correlations, mechanisms distribution, representative composition as increases The results showed increased, chemical type shifted Ca-SO4 Na-SO4 mixed types, an SO42− Na+ content profile. sodium adsorption ratio (SAR), total dissolved solids (TDS) higher shallow than deep groundwater. Groundwater negatively correlated cations anions (K+, Na+, Ca2+, Mg2+, Cl−, SO42−, NO3−). Meanwhile, positive exists CO32−. ions is primarily governed by influenced multiple factors. Evaporation dominant factor areas, whereas mineral rocks plays crucial role These findings provide scientific support strategic water-resource management policies sustainable development strategies regions.

Язык: Английский

Процитировано

0