Finite element method for one-dimensional rill erosion simulation on a curved slope

Yan, Lijuan; Lei, Tingwu; Zhang, Jing; Zhang, Qingwen; Qu, Liqin

doi:10.1016/j.iswcr.2015.03.001

Cited by 3 publications

(2 citation statements)

References 19 publications

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“…According to Heras et al (2011), drainage by set of rills develops from flow concentration and connectivity of flows from these channels. In this context, mathematicians have been arousing great interest in rill erosion network modelling (YAN et al, 2015).…”

Section: Introductionmentioning

confidence: 99%

Wepp Model for Rill Erosion Estimation in a Brazilian Semiarid Watershed

et al. 2020

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Soil erosion is a major environmental problem in many parts of the world and represents a serious problem for sustainable agriculture and the environment, with direct and indirect impacts on soil quality and fertility. This study aimed to use the Water Erosion Prediction Project (WEPP) model to estimate rill erosion and determine soil physical and hydraulic properties, which are essential to investigate its performance. To this end, an experiment was carried out in the Exu Creek watershed, in Serra Talhada, semi -arid region of Pernambuco State (Brazil), under increasing flow rates: T1: 5.87 L min-1; T2: 12.10 L min-1; T3: 20.33 L min1; and T4: 27.57 L min-1. Liquid and solid discharges were sampled for determination and characterization of hydraulic parameters in preformed rill flows. Reynolds numbers between 2,019 and 6,929 and Froude numbers below 1 found in this study attest to occurrence of erosive rills. Soil losses due to rill erosion increased as flow rates increased. Rill erodibility was 0.0011 kg N-1 s-1, and critical shear stress (tc) was 1.91 Pa, collapsing rill sidewalls and increasing local uplift, wet perimeter, and rill hydraulic radius.

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Section: Introductionmentioning

confidence: 99%

Wepp Model for Rill Erosion Estimation in a Brazilian Semiarid Watershed

et al. 2020

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“…According to land use data of the SRMRP in Henan Province, Bai evaluated the regional ecosystem services value increased by the ecological construction project was about 3.5 billion RMB [5] . Yan et al evaluated the ecological service values of soil and water conservation projects in the central source region (Danjiangkou Reservoir region) were about 3.3 billion RMB [6] . Chen et al analyzed the temporal and spatial change characteristics of ecological service value for the central source region [7] .…”

Section: Introductionmentioning

confidence: 99%

Quantitative Evaluation of the Ecosystem Services Value for the Source Region of the South-to-North Water Transfer Project (Middle Route)

Tang¹,

Cao²,

Zhai³

2017

Proceedings of the 2017 2nd International Symposium on Advances in Electrical, Electronics and Computer Engineering (ISAEECE 20

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Abstract. Ecosystem services value for the source region of the middle Route Project of the South-to-North Water Transfer Project (SRMRP) was evaluated by using the market value, shade-price and opportunity-cost methods based on land use data in the year 2000. The results indicated that the total value of ecosystem services in the SRMRP was approximately 242.94 billion RMB (Chinese currency), of which, the direct and indirect values were 61.99 and 180.95 billion RMB, respectively. The values of the ecosystem service functions in the SRMRP go as follow: gas regulation > production supply > soil conservation > environment purification > biodiversity conservation > water conservation > recreation and culture > nutrient circulation. The order of the total values of ecosystem services for different ecosystems in the SRMRP is as follows: forest > farmland > water area > grassland. The values of the ecosystem services per unit area in the SRMRP are in the order as follows: water area > grassland > forest > cultivated land.

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Can rock fragment cover maintain soil and water for saline-sodic soil slopes under coastal reclamation?

Liu

She

2017

CATENA

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Finite element method for one-dimensional rill erosion simulation on a curved slope

Cited by 3 publications

References 19 publications

Wepp Model for Rill Erosion Estimation in a Brazilian Semiarid Watershed

Wepp Model for Rill Erosion Estimation in a Brazilian Semiarid Watershed

Quantitative Evaluation of the Ecosystem Services Value for the Source Region of the South-to-North Water Transfer Project (Middle Route)

Can rock fragment cover maintain soil and water for saline-sodic soil slopes under coastal reclamation?

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