Assessment of Soil and Water Conservation Practices in the Loess Hilly Region Using a Coupled Rainfall-Runoff-Erosion Model

Cai, Mingyu; An, Chunjiang; Guy, Christophe; Lü, Chen

doi:10.3390/su12030934

Cited by 20 publications

(7 citation statements)

References 67 publications

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“…The results presented refer to the erosion measured with the help of runoff plots, but unlike the experiments conducted up to the date of this paper, they were performed by capturing low and medium intensity rains, which produced leaks (Cai et al, 2020).…”

Section: Discussionmentioning

confidence: 99%

Studies on the role of improvement perimeters in preventing and combating soil erosion

Moldovan¹,

Tăut²,

Dîrja³

2020

J. Agric. Crop Res

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Work conducted over the course of a year have had as primary purpose the effect of ecological reconstruction through afforestation and other works (support fences, cross and longitudinal works în ravinees) in improvement perimeters Diviciori 1 (compartment 73) and Diviciori 3 (compartment 49). Forest vegetation was installed 30 years ago in 73, according to afforestation formula 7PiN-2Pa (Fr) -1 seadbucktorn and 50 years in 49, according to the afforestation formula: 5PiN-2Pi-3Mo. Stands were led using silvotechnic works were just regarding hygienization, in the first years. However, in the recent past, the trees have suffered due to abiotic factors that favorized the emergence of disease and pests (Lophodermium ssp. and Diprion pini). So as to obtain more relevant scientific data, test surfaces were placed following the methods used in the agricultural field, modified as to fit the forest field, so the data could be statistically processed and allow the recommendation of adequate technical solutions regarding the ecological reconstruction of the damaged terrains. Eight test areas were placed in the forests and limitrophe to them, the collected data concerning the volume of rainfall, the quantity of runoff on each surface, respectively material collected in the designated tanks. Therefore the collected data has been processed in the laboratory, ultimately uncovering the quantity of eroded material and comparing it between the two compartments and the limitrophe land, having the following values: 0.0912 t/ha in 49, 0.1718 t/ha outside 49, 0.0939 t/ha in 73 and 0.1657 outside 73. Keywords: Improvement perimeter, runoff plots, erosion, rainfall, forest bottom

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Section: Discussionmentioning

confidence: 99%

Studies on the role of improvement perimeters in preventing and combating soil erosion

Moldovan¹,

Tăut²,

Dîrja³

2020

J. Agric. Crop Res

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“…One of the major environmental issues worldwide is urban sprawl, which is associated with consumption of agricultural and forested land, decreases in natural habitats and biodiversity, and progressive air pollution (Cai et al, 2020). Furthermore, the locations of households and businesses within cities will affect levels of GHG emissions and land consumption in urban structures (Legras and Cavailhè s, 2016).…”

Section: Urban Sprawl-major Source Of Environmental Problemsmentioning

confidence: 99%

“…Urban growth, especially the conversion of land to urban uses, is associated with a number of environmental issues. One of the most serious environmental concerns is the increasing greenhouse gas (GHG) emissions (Zhang et al, 2019;Cai et al, 2020;Chen et al, 2020;Hu and Xia, 2020). According to previous studies, the relationship between urban form and GHG emissions is highly complex.…”

Section: Introductionmentioning

confidence: 99%

Assessing the Impact of Urban Form on the Greenhouse Gas Emissions from Household Vehicles: A Review

Tian

An²,

Chen³

2020

J ENVIRON INFORM LET

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Urban growth is associated with a number of environmental issues. One of the most serious environmental concerns is the air pollutants and increasing greenhouse gas (GHG) emissions. This study presents a comprehensive review of the impact of urban form on the GHG emissions from household vehicles. A comparative study encompassing the methods used for identifying the relationship between urban form and vehicle GHG emissions was conducted. Household vehicle GHG emissions in different urban forms were investigated, drawing upon various existing studies. The internal variables that define urban form, such as density, connectivity, land use mix, and accessibility, were further discussed with respect to their degree of influence on household vehicle GHG emissions. Finally, a discussion of opportunities in urban form which may be conducive to household vehicle GHG emission mitigation in the long term was presented.

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“…These comprehensive investigations aim to furnish a scientific foundation for holistic soil and water conservation management. They provide pivotal insights into comprehending soil erosion mechanisms and formulating efficacious strategies for soil and water conservation [36][37][38].…”

Section: Introductionmentioning

confidence: 99%

Impact of Diverse Rainfall Patterns and Their Interaction on Soil and Water Loss in a Small Watershed within a Typical Low Hilly Region

Zhou,

Shao,

Jiang

2024

Water

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Assessing the impact of varied rainfall patterns on soil and water loss within a hilly watershed over an extended temporal scope holds paramount importance in comprehending regional runoff and sediment traits. This study utilized continuous rainfall and sediment data spanning from 2013 to 2021, and the K-means clustering method was employed to analyze rainfall types. Subsequently, the rain-type characteristics underwent further analysis through LSD, and a multiple linear regression equation was formulated. The result showed that: within the Qiaotou small basin, rainfall, maximum rainfall intensity within 30 min (I30), and rainfall erosivity exhibited notable effects on sediment yield and loss. The water-sediment attributes of 305 rainfall events were characterized by rainfall below 100 mm, I30 of less than 35 mm/h, a runoff coefficient below 0.5, and sediment content under 0.6 g/L. According to the characteristics of different rainfall types and the degree of influence on water and sediment in small watersheds, 305 rainfall events in the basin were divided into three types by the K-means clustering analysis method: A (heavy rainfall, moderate rain), B (small rainfall, light rain), and C (medium rainfall, heavy rain). The most frequent rain type observed was B, followed by C, while A had the lowest frequency. Despite the lower intensity of B-type rainfall, it holds significant regional importance. Conversely, C-type rainfall, although intense and short, serves as the primary source of sediment production. The multiple regression equation effectively models both sediment yield modulus and flood peak discharge, exhibiting an R2 coefficient exceeding 0.80, signifying significance. This equation enables the quantitative calculation of pertinent indicators. Sediment yield modulus primarily relies on sediment concentration, runoff depth, and rainfall, while peak discharge is significantly influenced by runoff depth, sediment concentration, and I30. Furthermore, the efficacy of various soil and water conservation measures for flow and sediment reduction correlates with I30. Overall, the impact of different measures on reducing flow and sediment increases with a higher I30, accompanied by a reduced fluctuation range.

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Assessment of Soil and Water Conservation Practices in the Loess Hilly Region Using a Coupled Rainfall-Runoff-Erosion Model

Cited by 20 publications

References 67 publications

Studies on the role of improvement perimeters in preventing and combating soil erosion

Studies on the role of improvement perimeters in preventing and combating soil erosion

Assessing the Impact of Urban Form on the Greenhouse Gas Emissions from Household Vehicles: A Review

Impact of Diverse Rainfall Patterns and Their Interaction on Soil and Water Loss in a Small Watershed within a Typical Low Hilly Region

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