Effects of Different Tillage Practices on Slope Erosion Characteristics of Peanut Field

Liang, Xinlan; Song, Ke; Zhang, Youheng; Huang, Hongliang; Wang, Yong; Cao, Ying

doi:10.3390/agronomy13102612

Cited by 2 publications

(1 citation statement)

References 20 publications

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“…Sustainable practices to control and mitigate soil erosion are essential worldwide, especially in environments that are more prone to erosion risks [1][2][3]. Many studies worldwide have shown that mulching is a key method for controlling runoff and soil erosion [4,5].…”

Section: Introductionmentioning

confidence: 99%

Optimizing Straw Mulching Methods to Control Soil and Water Losses on Loess Sloped Farmland

Zhao,

Song,

Wang

et al. 2024

Agronomy

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Straw mulching is a key method for controlling soil and water losses. Mulching costs may be reduced by applying it in strips rather than over entire areas. However, the effect of different straw mulching methods on the effectiveness of reducing soil erosion is unclear. In this study, the effects of straw mulching strip length (covering 1/4, 1/2, 3/4, and 4/4 of the slope length) and coverage rate (0.2, 0.5, and 0.8 kg m−2) on interception, infiltration, runoff, and soil erosion were investigated at the plot scale using rainfall simulation experiments. The further complex correlations between these variables were analyzed using structural equation modeling (SEM). Bare slopes were used as a control group. The rainfall intensity was chosen to be 60 mm h−1. The results showed that (1) the modified Merriam interception model can describe the change in interception with time under straw mulching conditions well (R2 > 0.91, NSE > 0.75). (2) A total of 35.39–78.79% of the rainwater is converted into infiltration on straw-covered slopes, while this proportion is 36.75% on bare slopes. The proportion of rainwater converted to infiltration was greatest (78.79%) when the straw covered 3/4 of the slope length at a coverage rate of 0.5 kg m−2, which was the most conducive to rainwater harvesting on the slope. (3) Straw mulching protects the topsoil from the impact of raindrops and directly affects the sediment yield (direct effect = −0.44). Straw mulching can also indirectly affect sediment yield by increasing interception, reducing runoff, and decreasing the sediment carrying capacity of runoff (indirect effect = −0.83). Compared with bare slopes, straw covering at least 1/2 of the slope length can significantly reduce runoff yield, but straw covering only 1/4 of the slope length can significantly reduce sediment yield. Moreover, once the straw mulch slope length reaches 3/4 and the coverage rate reaches 0.5 kg m−2, further increases in mulch slope length and coverage rate will not significantly reduce the runoff and sediment yields. These results assessed the effectiveness of different straw mulching methods in controlling soil and water losses on sloping farmland.

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Section: Introductionmentioning

confidence: 99%

Optimizing Straw Mulching Methods to Control Soil and Water Losses on Loess Sloped Farmland

Zhao,

Song,

Wang

et al. 2024

Agronomy

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Soil and water management perspectives for tropical and dryland areas of Africa

Usman

2024

SoilSt

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Soil and water are two natural resources that deliver various functional services to humanity. Advanced soil and water management is highly needed in the tropics. This revision focused on soil and water management issues in the tropics, soil and water management linkages to major soil functional groups (soil health, soil quality, soil fertility, water quality, and soil function), soil quality management and rehabilitation, and soil quality assessment. This study revealed that soil indictors are physical, chemical and biological, reflecting a better understanding of the major soil functional groups in an integrated soil water assessment for better soil and water management in the tropics. Regular checks and balances of comprehensive soil water management can lead to reduced soil erosion, increased water use efficiency, enhanced soil nutritional content, improved infiltration and water holding capacity, minimized runoff and surface soil leaching of pesticides and inorganic chemicals to groundwater reservoirs, increased decomposition and soil organic matter, enhanced soil biodiversity, and increased plant health and food security. To make this viable, an integrated assessment of soil water indicators and the application of sustainable soil water management approaches are needed. Regular checks and balances of the current status of soil and water quality and soil fertility must be given permanent priority.

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Effects of Different Tillage Practices on Slope Erosion Characteristics of Peanut Field

Cited by 2 publications

References 20 publications

Optimizing Straw Mulching Methods to Control Soil and Water Losses on Loess Sloped Farmland

Optimizing Straw Mulching Methods to Control Soil and Water Losses on Loess Sloped Farmland

Soil and water management perspectives for tropical and dryland areas of Africa

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