New polymer composites improve silty clay soil microstructure: an evaluation using <scp>NMR</scp>

Huang, Wei; Du, Jiaxin; Sun, Hao; Zhou, Cuiying; Liu, Zhen; Zhang, Lihai

doi:10.1002/ldr.3983

Cited by 13 publications

(16 citation statements)

References 34 publications

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“…Typically speaking, the higher the soil oxygen content and the lower the soil carbon dioxide content, the stronger the gas exchange capacity between the ground and atmosphere. The better the permeability of soil is, the more vigorous the growth of vegetation roots is [23,24].…”

Section: Effect Of High-performance Ester Materials On Soil Oxygen An...mentioning

confidence: 99%

“…They can meet the needs of soil conservation for the future development of green and environmentally friendly subtropical gardens. In addition, according to previous research results and the actual engineering experience of our team (e.g., slope restoration, mining rehabilitation) [19][20][21][22][23][24][25][26][27], we can draw the following useful data supports about the properties of high-performance ester materials. The main degradation cycle of high-performance ester materials lasts for 2 to 3 years.…”

Section: Introductionmentioning

confidence: 99%

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Soil Remediation of Subtropical Garden Grasses and Shrubs Using High-Performance Ester Materials

Gou

Tang

et al. 2022

Sustainability

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Soil erosion due to rainstorms is a serious problem in subtropical gardens in South China. Soil conservation and the restoration of degraded landscapes are important research topics at home and abroad. Because of the sluggish growth of plants under traditional cultivation techniques, they are incapable of effectively protecting the soil. Therefore, the rapid and high-quality soil conservation of subtropical landscapes remains an urgent problem to be overcome. The purpose of this study is to improve the red soil and ground environment for the growth of grasses and shrubs through high-performance ester materials. Our objective was to find a solution for the high impact of soil loss on subtropical landscapes. In this study, we used the ecological restoration of soil as the starting point and selected a typical subtropical garden in South China as the field test point. We carried out soil erosion resistance testing using high-performance ester materials. The anti-erosion abilities of slopes under various working conditions are discussed. During the growth period, the soil indexes were monitored for a long time, and the growth of grasses and shrubs was compared. The obtained monitoring data were analyzed with mathematical statistics. We found that the addition of high-performance ester materials significantly reduced soil loss by 52.60%. High-performance ester materials have a good hydrothermal regulation function, which can promote the germination and later growth of sloping plants. The decrease in ground internal density promotes the extension of plant roots. High-performance ester materials can improve soil permeability and activity and promote vegetation growth. In terms of turf thickness and overall growth as well as shrubs crown width and height, high-performance ester materials have a beneficial effect on promoting plant growth. Soil remediation using high-performance ester materials has good economic value, high water-holding capacity, adaptability, and convenience. In this study, we determined a solution for the high impact of soil loss on subtropical landscapes. The soil remediation of a subtropical garden using high-performance ester materials was successful. The practice of landscape soil remediation engineering presented in this paper can provide a reference for typical landscape soil remediation in subtropical zones.

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Section: Effect Of High-performance Ester Materials On Soil Oxygen An...mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Soil Remediation of Subtropical Garden Grasses and Shrubs Using High-Performance Ester Materials

Gou

Tang

et al. 2022

Sustainability

Self Cite

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“…Under this concentration threshold, the soil will be improved poorly because the material concentration is too low. In addition, the soil will not be damaged due to excessive expansion due to high concentration [4,[21][22][23][24][25][26][27][34][35][36]. This can effectively improve the soil structure and promote plant root growth [36].…”

Section: Soil Samplementioning

confidence: 99%

“…Organic soil improvement materials, such as straw polysaccharides, cellulose, and high-performance ester materials (HEMs), do not pollute and damage the environment because of their degradability. They maintain an exceptional growth-promoting effect on early wall-hanging green plants [21][22][23][24][25][26].…”

Section: Introductionmentioning

confidence: 99%

Disintegration Resistance of Steep-Rocky-Slope Wall-Hanging Soil Based on High-Performance Ester Materials

2022

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Ecological restoration is difficult on the steep rocky slopes (SRS) in rainy areas in South China that experience severe soil erosion. The disintegration resistance of steep-rocky-slope wall-hanging soil (SRSWS) is a crucial topic in the field of new ecological restoration. The formation of a transient saturated zone of wall-hanging soil (WS) under high-intensity rainfall can easily lead to soil disintegration. The subsequent rain erosion can cause the loss of growth substrate required for early plants, resulting in a poor greening effect or even landslides. Therefore, improving the disintegration resistance of WS and ensuring the stability of the early-plant-growth environment are at the core of SRS protection. In this paper, structural and static underwater disintegration tests of red soil modified by high-performance ester materials (HEMs) were carried out. According to the damage ratio of the soil structure and the disintegration rate and disintegration amount of red soil, the structural properties and disintegration resistance of improved red soil were quantitatively measured. The results show that absorbent HEMs generally increased the content of water-stable aggregates (WAs) in red soil. However, when the content was excessively large, it destroyed the WAs and accelerated the overall disintegration rate and amount. Based on the structure and disintegration resistance test of red soil, optimal pro-portions of adhesive HEMs of 10 g·m−3 and absorbent HEMs of 80 g·m−3 were obtained. The optimal proportions obtained from the above experiments showed good adaptability and an improvement effect on the structural properties and disintegration resistance of red soil. This solves the problem of the growth substrate required for early plant disintegration and loss in water. This paper provides a theoretical and experimental basis for the ecological restoration of SRSWS with disintegration resistance. It has guiding significance for the steady progress of greening construction on SRS sites.

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“…In the farmland water cycle processes, porosity is considered an important parameter, and it directly influences the soil water distribution and water-holding capacity. At the same time, soil porosity drives the migration of energy and materials and changes the infiltration and runoff mechanism (Helalia, 1993;Huang et al, 2021;Du et al, 2021;Wasko and Nathan, 2019). But the infiltration and runoff of farmland were complex hydrological phenomena; it was the interactive result of rainfall and soil management measures (Yu et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

Experiment Study of Porous Fiber Material on Infiltration and Runoff of Winter Wheat Farmland in Huaibei Plain, China

et al. 2022

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Drought and floods frequently occurred in the Huaibei plain, which was the main factor that restricted agricultural development. We conducted rainfall experiments, which aimed to explore the impacts of porous fiber material (PFM) on the farmland water cycle processes and soil water storage capacity. In this study, we designed two types of rainfall intensities, 4 PFM volumes, 4 growth periods of winter wheat, and a total of 8 experimental groups and 32 rainfall events to evaluate the effects. The result showed that PFM had significantly affected the soil water circulation in the grain-filling period, and the peak flow and runoff decreased maximumly compared with other periods. However, the effect of PFM on surface runoff was slighter in the fallow period, and the peak flow or runoff decreased with the PFM volumes increased (R2 = −0.92, −0.99). In the 100 and 50 mm/h rainfall intensities, PFM decreased the average values of runoff by (55.2–59.6%) and (57.2–90.2%), reduced peak flow by (62.2–68%) and (64.2–86%), and increased the stable infiltration rate by (13.4–14.3%) and (26.6–41.3%), respectively. After the rainfall experiments ended for 1 h, the surface soil water rapidly infiltrated into PFM, which made the water-storage capacity of PFM groups higher than the control groups by 0.2–11% Vol. Subsequently, PFM increased the water-holding capacity by 0.3–2.3% Vol in the 10–70 cm depth from the heading period to the fallow period. It had a positive relationship between the PFM volumes and the average values of soil water content (R2 = 0.8, 0.84). In general, PFM could increase infiltration, reduce runoff, and improve the water-storage capacity to alleviate soil water deficit and the risk of farmland drought and floods. It has an excellent application effect in long-duration rainfall.

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New polymer composites improve silty clay soil microstructure: an evaluation using NMR

Cited by 13 publications

References 34 publications

Soil Remediation of Subtropical Garden Grasses and Shrubs Using High-Performance Ester Materials

Soil Remediation of Subtropical Garden Grasses and Shrubs Using High-Performance Ester Materials

Disintegration Resistance of Steep-Rocky-Slope Wall-Hanging Soil Based on High-Performance Ester Materials

Experiment Study of Porous Fiber Material on Infiltration and Runoff of Winter Wheat Farmland in Huaibei Plain, China

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