Optimal clipping intensity for balancing soil erosion control and runoff production on revegetated slopes

He, Qilin; Li, Binbin; Zhang, Fengbao; Shen, Nan; Yang, Mingyi

doi:10.1016/j.jhydrol.2023.129470

Cited by 3 publications

(4 citation statements)

References 56 publications

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“…The simulated rainfall experiments were completed within 1 week after the clipping was performed. For more comprehensive experimental details, refer to He et al (2023a).…”

Section: Experimental Designmentioning

confidence: 99%

“…The gradient, but soil loss showed an initial increase followed by a decrease (Figure 6c,f). This study primarily focused on the variation of hydraulic parameters on slopes with clipped vegetation and their relationship with runoff and soil erosion, with more comprehensive analyses of runoff and soil erosion can be found in previous studies (He et al, 2023a(He et al, , 2023b. The hydraulic parameters on a slope are influenced by various complex factors, including vegetation, rainfall characteristics, and terrain slope (Pan, Ma, & Wainwright, 2016a;Shen et al, 2016).…”

Section: Decoupling the Soil Erosion Mechanism Of Slopes With Clipped...mentioning

confidence: 99%

“…Recent researches have examined the impacts of slope gradient and rainfall intensity on hydraulic parameters and soil erosion in vegetated slopes (Ding & Fu, 2022;Feldmann et al, 2023;Li & Pan, 2020;Pan, Ma, Wainwright, & Shangguan, 2016b;Zhang et al, 2020), revealed that the relationship between hydraulic parameters and soil erosion varied with the influence of rainfall intensity and slope gradient (Pan, Ma, & Wainwright, 2016a;Zhang et al, 2020). However, the hydrodynamic processes and soil erosion conditions on slopes with clipped vegetation may vary due to the alteration of surface coverage and vegetation distribution resulting from clipping (Ding & Fu, 2021;He et al, 2023a;Pan, Ma, & Wainwright, 2016a;Pan, Ma, Wainwright, & Shangguan, 2016b), and research on slopes with clipped vegetation remains limited. Therefore, it is imperative to conduct comprehensive research under diverse experimental conditions, such as varying rainfall intensities and slopes, to gain a nuanced understanding of the hydraulic dynamics of soil erosion on clipped vegetation slopes.…”

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confidence: 99%

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Exploring the relationship between soil erosion and hydraulic parameters on slopes with clipped herbaceous vegetation through Bayesian network modeling

He,

Li,

Zhang

et al. 2024

Land Degrad Dev

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Clipping management, which alters vegetation conditions by removing aboveground vegetation while preserving the underground root system, directly impacts hydrological processes and flow dynamics, ultimately affecting soil erosion processes. This study conducted field experiments (2 × 6 m) encompassing four clipping intensities (with vegetation coverage of 70%, 50%, 25%, and 0%), three rainfall intensities (60, 90, and 120 mm·h−1), and three slope gradients (10°, 20°, and 30°). The results showed that clipping treatments significantly reduced the Darcy–Weisbach resistance coefficient (f). Elevated levels of clipping intensity, rainfall intensity, and slope gradient led to increased flow velocity (v), Reynolds number (Re), and stream power (ω). The shear stress (τ) exhibited an upward trend with rising slope and rainfall intensity, with no significant difference in the effect of clipping intensity. Variation partitioning analysis demonstrated that the influence of steep slopes amplified the effects of rainfall intensity while diminishing the impact of clipping intensity on v values. Critically, the Bayesian network model suggested that, in comparison to the influence of raindrop splashing, soil detachment and transportation by runoff were the predominant driving mechanisms for erosion on slopes with clipped vegetation. Rainfall intensity and clipping intensity were found to raise the runoff depth and enhance the v value, which ultimately influenced soil erosion. Overall, these results contribute to an improved comprehension of the hydraulic dynamics of soil erosion on slopes with clipped vegetation and provide invaluable perspectives for developing effective clipping management strategies to ensure sustainable land utilization and judicious water resource governance.

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“…The simulated rainfall experiments were completed within 1 week after the clipping was performed. For more comprehensive experimental details, refer to He et al (2023a).…”

Section: Experimental Designmentioning

confidence: 99%

Section: Decoupling the Soil Erosion Mechanism Of Slopes With Clipped...mentioning

confidence: 99%

mentioning

confidence: 99%

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Exploring the relationship between soil erosion and hydraulic parameters on slopes with clipped herbaceous vegetation through Bayesian network modeling

He,

Li,

Zhang

et al. 2024

Land Degrad Dev

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“…The results of the study confirmed that vegetation pattern and plant density can manipulate the trade-off between soil erosion and water storage. At the basin scale, another recent study reported that vegetation restoration dominated the attenuated soil erosion on the Loess Plateau over the last 50 years (He, Li, et al, 2023). At the regional scale, numerous studies were carried out to assess the soil erosion and soil water depletion estimation, mainly in terms of precipitation gradients and remote sensing (Wang et al, 2014;Wang et al, 2017).…”

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confidence: 99%

Understanding the balance between soil conservation and soil water storage capacity during the process of vegetation restoration in semi‐arid watersheds in the Loess Plateau, China

Yu,

Zhu,

Liu

et al. 2023

Land Degrad Dev

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In the Loess Plateau, gaining insights into the water storage and soil retention functions of diverse vegetation types, especially, in the semi‐arid watersheds is crucial for identifying the key factors necessary to ensure sustainable development and achieve land degradation neutrality. In this study, five different land use types such as forest, shrub, artificial grass, and natural grasslands were surveyed from 2014 to 2020. Meanwhile, bare land was also used as a control plot. The trade‐off between erosion mitigation and water consumption indicator was quantified based on the ecosystem services perspective benefits. Our results showed that there are significant differences among different land use types (p < 0.05): natural grassland > shrubs > artificial grassland > forests. Vegetation restoration was able to change the soil particle size distribution, increasing clay and silt content, and decreasing sand particles. During the growing season, surface soil water storage decreased in all land use types coinciding with the higher decrease in the control plot. The change in surface water storage in the forest was the most stable, with a decrease of 0.13 mm. The trade‐off between erosion mitigation and water consumption indicator was less than 0 for all vegetation types, which indicates a synergistic effect on soil conservation and water storage benefit. Our results demonstrated that shrubs can register the most balanced benefit of water storage and soil preservation. This is a solid basis for the selection of specific vegetation types and the optimization of the watershed landscape in the middle reaches of the Yellow River, characterized by vulnerable areas due to aridification.

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Effects of grass strips distribution on soil erosion and its optimal configuration on hillslopes

Zhang,

Li,

Bin Li

et al. 2024

CATENA

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Optimal clipping intensity for balancing soil erosion control and runoff production on revegetated slopes

Cited by 3 publications

References 56 publications

Exploring the relationship between soil erosion and hydraulic parameters on slopes with clipped herbaceous vegetation through Bayesian network modeling

Exploring the relationship between soil erosion and hydraulic parameters on slopes with clipped herbaceous vegetation through Bayesian network modeling

Understanding the balance between soil conservation and soil water storage capacity during the process of vegetation restoration in semi‐arid watersheds in the Loess Plateau, China

Effects of grass strips distribution on soil erosion and its optimal configuration on hillslopes

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