Soil erosion and its causes in high-filling body: A case study of a valley area on the Loess Plateau, China

Bao, Han; Tang, Ming; Lan, Hengxing; Peng, Jianbing; Zheng, Han; Guo, Guan-miao

doi:10.1007/s11629-021-7221-5

Cited by 14 publications

(6 citation statements)

References 63 publications

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“…It enhances aeration, and drainage, and creates an ideal environment for plant growth [150]. However, excessive loosening or improper loosening would destroy its structure which can lead to erosion and soil damage [151], [152]. For example, excessive loosening of soil without implementing erosion control can lead to the loosened soil easily being washed away or blown away during heavy rainfall or strong winds, ultimately causing soil erosion.…”

Section: H Mitigation Techniques and Methodologymentioning

confidence: 99%

A Survey of Wireless Soil Sensing Technologies

Xu,

Smirnov,

Kohler

et al. 2024

IEEE Access

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This survey overviews recent advancements in wireless soil sensing technologies, such as sensors and communication systems to manage and enhance soil health and crop production for sustainable agricultural practices. The surveyed technologies are categorized by the target sensing parameters, such as moisture, temperature, salinity, pH, nutrient concentration, pressure, and heavy metals content. Special focus is placed on the passive and semi-passive sensing principles for soil data collection, communication systems for transmitting the sensed data, and machine learning approaches for data processing and analysis to assist in informed decision-making in the realization of sustainable agriculture. By comparing existing technologies, we highlight the advantages and disadvantages of these sensing mechanisms, summarize existing challenges of the surveyed soil sensing systems, and identify future research directions that need attention.

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Section: H Mitigation Techniques and Methodologymentioning

confidence: 99%

A Survey of Wireless Soil Sensing Technologies

Xu,

Smirnov,

Kohler

et al. 2024

IEEE Access

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“…Therefore, many towns located in the Loess Plateau are constrained by limited space and geohazards, making further development difficult [11]. In recent years, various major projects have been carried out in the Loess Plateau to accelerate urbanization and improve the standards of living of residents [12][13][14], making it more critical than ever to understand how loess soil behaves under various engineering attempts to mitigate inevitable water erosion.…”

Section: Introductionmentioning

confidence: 99%

“…For example, in order to mitigate the issue of erosion in the loess tableland area in Qingyang City, Gansu Province, a major project called "Gully Stabilization and Tableland Protection" was carried out; the project that involved the burial of 14,035 gullies in 42 large tablelands within the city area. In Yan'an City, Shaanxi Province, and Lanzhou City, Gansu Province, the "Plain-to-Mountain Urban Construction" project was launched to accelerate urbanization and expand the scale of urban areas [10,[12][13][14]. During the implementation of these projects, many high slopes were inevitably generated due to excavation and filling operations [10,12,13].…”

Section: Introductionmentioning

confidence: 99%

“…In Yan'an City, Shaanxi Province, and Lanzhou City, Gansu Province, the "Plain-to-Mountain Urban Construction" project was launched to accelerate urbanization and expand the scale of urban areas [10,[12][13][14]. During the implementation of these projects, many high slopes were inevitably generated due to excavation and filling operations [10,12,13]. Consequently, these projects have resulted in various mitigation measures [15].…”

Section: Introductionmentioning

confidence: 99%

“…residents [12][13][14], making it more critical than ever to understand how loess soil behaves under various engineering attempts to mitigate inevitable water erosion.…”

Section: Introductionmentioning

confidence: 99%

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Failure Process of High-Loess-Filled-Slopes (HLFSs) during Precipitation under Different Mitigation Measures

Zhu,

Zhuang,

Zhao

2024

Applied Sciences

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The problems of gully and soil erosion caused by large-scale urban construction and agricultural development in China have become more and more serious in recent years. In an effort to solve this problem, a series of gully stabilization and highland protection projects have been carried out on the Loess Plateau, and this has resulted in a large number of high-loess-filled-slopes (HLFSs). Although these filled slopes uses several different mitigation measures, the HLFSs have been eroded and destroyed under the action of water. In order to study the influence of different mitigation measures on the stability of HLFSs and their failure process, this paper uses a flume test of the effects of various mitigation measures on this failure process. The results show that: (1) the failure processes of slopes with different mitigation measures are obviously different. Slope deformation u with a declining gradient mitigation mainly occurs on the surface of the slope body, and although slope erosion is quite serious, the slope does not fail as a whole. Slopes with a stepwise drainage channel mitigation show little erosion, but material can easily slide along the horizontal drainage channels. (2) The slope deformation process is correlated with changes in pore-water pressure. When local instability occurs, there is always a pre-process of continuously rising pore-water pressure. When a failure occurs, the pore-water pressure of the soil at each position of the slope body suddenly fluctuates under instantaneous excitation. (3) The response of soil pore pressure and the development characteristics of tension cracks affect the deformation of the slopes, which is also the cause of the differences slope instability caused by different mitigation measures. These research results provide reference for the protection of HLFS engineering projects from heavy rains.

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